Log in

Relevant bibliographies by topics / Butene / Journal articles

To see the other types of publications on this topic, follow the link: Butene.

Journal articles on the topic 'Butene'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Butene.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Bachl, F., and H. D. Lüdemann. "Pressure and Temperature Dependence of Self-Diffusion in Liquid Linear Hydrocarbons." Zeitschrift für Naturforschung A 41, no. 7 (1986): 963–70. http://dx.doi.org/10.1515/zna-1986-0711.

Full text

Abstract:

The pressure and temperature dependence o f the self-diffusion coefficients D of n-butane, n-pentane, n-hexane, n-decane, trans-2-butene, cis-2-butene and 2-butyne were determined in the liquid state by NM R-techniques at pressure up to 200 MPa and temperatures up to 450 K. The results are taken as tests for the various dynamical models and compared to results obtained by M D calculations. The activation parameters for translational transport and the parameters for the RHS-m odel are derived and discussed.

APA, Harvard, Vancouver, ISO, and other styles

2

BELELLI, PATRICIA G., and NORBERTO J. CASTELLANI. "A THEORETICAL STUDY OF UNSATURATED OLEFIN HYDROGENATION AND ISOMERIZATION ON Pd(111)." Surface Review and Letters 15, no. 03 (2008): 249–59. http://dx.doi.org/10.1142/s0218625x08011329.

Full text

Abstract:

The addition of hydrogen to the carbon–carbon double bond of 2-butenes adsorbed on Pd (111) was studied within the density functional theory (DFT) and using a periodic slab model. For that purpose, the Horiuti–Polanyi mechanisms for both complete hydrogenation and isomerization were considered. The hydrogenation of cis and trans-2-butene to produce butane proceeds via the formation of eclipsed and staggered-2-butyl intermediates, respectively. In both cases, a relatively high energy barrier to produce the half-hydrogenated intermediate makes the first hydrogen addition the slowest step of the

APA, Harvard, Vancouver, ISO, and other styles

3

Huseynova, Galina, Gulbeniz Мuхtаrоvа, Nushaba Aliyeva, Gular Gаsimоvа, and Sanubar Rаshidоvа. "Zeolite-Containing Catalysts in Alkylation Processes." Catalysis Research 2, no. 3 (2022): 1. http://dx.doi.org/10.21926/cr.2203019.

Full text

Abstract:

This article provides an overview of zeolite-containing catalysts used in the alkylation of benzene and toluene with olefins, isobutane with butenes and butane-butene fractions, gasoline and oil fractions with olefins, propane-propylene, and butane-butylene fractions of catalytic cracking. Zeolites have various types of structures, including BEA, MFI, MWW, FAU, etc., which differ in pore size and the number and location of the channels. High-silica zeolites have a large pore volume, high acidity, good hydrothermal stability, and molecular sieve properties that provide high selectivity in alkyl

APA, Harvard, Vancouver, ISO, and other styles

4

Huseynova, G. A., G. S. Mukhtarova, S. Y. Rashidova, and G. A. Gasimova. "Zeolite-containing catalysts in alkylation processes." Azerbaijan Oil Industry, no. 10 (October 15, 2022): 41–46. http://dx.doi.org/10.37474/0365-8554/2022-10-41-46.

Full text

Abstract:

The paper reviews the zeolite-containing catalysts applied in alkylation processes of benzole and tolene with olefines, isobutene with butenes and butane-butene fractions, gasoline and oil fractions with olefins, propane-propylene and butane-butylene fractions of catalytic cracking as well. The zeolites are presented with the structures of BEA, MFI, MWW, FAU etc. types differing with pore size, with quantity and location of the channels. High-silica zeolites are characterized with high volume of pores, high acidity, hydrothermal stability, as well as with shape-selective properties providing h

APA, Harvard, Vancouver, ISO, and other styles

5

Aghayeva, K. X., and V. L. Baghiyev. "INVESTIGATION OF THE ISOMERIZATION REACTION OF BUTENE-1 TO BUTENES-2 ON BINARY TUNGSTEN-CONTAINING CATALYSTS." Chemical Problems 20, no. 3 (2022): 256–63. http://dx.doi.org/10.32737/2221-8688-2022-3-256-263.

Full text

Abstract:

The activity of tungsten-containing catalysts in the reaction of isomerization of butene-1 to butenes-2 was studied in the work. The results obtained showed that the ^ introduction of the second element into the composition of the tungsten oxide catalyst had a different effect on its activity in the butene-1 isomerization reaction. It was established that an increase in the amount of molybdenum in the composition of a binary tungsten-containing catalyst at low temperatures leads to a decrease in the degree of butene-1 isomerization while at high temperatures it leads to an increase in the rate

APA, Harvard, Vancouver, ISO, and other styles

6

Fəridə Mədətova, Əzizə Zeynalova, Fəridə Mədətova, Əzizə Zeynalova, та Dilarə İsmayılova, Vaqif Bağıyev Dilarə İsmayılova, Vaqif Bağıyev. "BUTEN-1-in BUTEN-2-yə İZOMERLƏŞMƏSİ REAKSİYASINDA BİNAR KOBALT TƏRKİBLİ KATALİZATORLARIN AKTİVLİYİ". PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 34, № 11 (2023): 75–84. http://dx.doi.org/10.36962/pahtei34112023-75.

Full text

Abstract:

Hydrogen is considered the main source of chemical energy that can be converted directly into electricity and with the help of fuel cells into zero emissions of harmful waste, such as volatile organic compounds, nitrogen oxides and carbon. The production of hydrogen in accordance with the generation of energy using a fuel cell is considered a promising alternative to stationary and portable power generation plants in the future. Various methods are used to produce hydrogen: water electrolysis, gasification, partial oxidation of heavy oil and steam corrugation of organic compounds. Currently, i

APA, Harvard, Vancouver, ISO, and other styles

7

Yi, Fengjiao, Mengjiao Xing, Jing-Pei Cao, Shupeng Guo, and Yong Yang. "Comparison of Brønsted Acidic Silanol Nests and Lewis Acidic Metal Sites in Ti-Beta Zeolites for Conversion of Butenes." Catalysts 14, no. 11 (2024): 749. http://dx.doi.org/10.3390/catal14110749.

Full text

Abstract:

The Lewis acidic framework Ti sites in Ti-Beta and Si-Beta catalysts were compared by FT-IR and NMR characterization methods before they were applied to the conversion of four butenes. The results showed that Si-Beta has fewer Lewis acid sites and abundant weak Brønsted acidic silanol nests, which play an important role in conversions between n-butene, cis-2-butene, and trans-2-butene. The conversions for these butenes over Si-Beta were always higher than those over a series of Ti-Beta catalysts with gradient-varied Lewis acidic framework Ti sites and silanols. This is because isobutene can on

APA, Harvard, Vancouver, ISO, and other styles

8

Al-Auda, Zahraa, and Keith L. Hohn. "Production of Butane from Methyl Ethyl Ketone over Pt/Al2O3." Bulletin of Chemical Reaction Engineering & Catalysis 18, no. 1 (2023): 17–24. http://dx.doi.org/10.9767/bcrec.16693.

Full text

Abstract:

Methyl ethyl ketone (MEK) was catalytically converted to butane directly in one step over platinum (Pt) supported on alumina (Al2O3). The reaction was performed in the gas phase in a fixed bed reactor. Conversion of MEK to butane was achieved by hydrogenation of MEK to 2-butanol, dehydration of 2-butanol to butene, and further hydrogenation of butene to butane. The results showed that butane can be produced with selectivity reaching 95% depending on the operating conditions. The highest selectivity for butane was obtained at 220 °C and a H2/MEK molar ratio of 15. Copyright © 2023 by Authors, P

APA, Harvard, Vancouver, ISO, and other styles

9

Nofrizal, Nofrizal, Lisna Rosmayati, and Yayun Andriani. "A Rapid Gas Chromatography Method For Simultaneous Determination Of Lpg Compounds." Scientific Contributions Oil and Gas 36, no. 3 (2022): 145–51. http://dx.doi.org/10.29017/scog.36.3.772.

Full text

Abstract:

A rapid gas chromatography method using a HP Plot/Al2O3 column for the determination of thirteen compounds of LPG (Liquefied Petroleum Gas) standard (ethane, propane, propylene, iso-butane, n-butane, trans-2-butene, 1-butene, isobutylene, neo-pentane, cis-2-butene, iso-pentane, n-pentane, 1,3 butadiene) was developed. The LPG components were separated in about 8 min by gradient elution program and helium was used as a carrier gas at a flow rate of 5 mL min-1, The relative standard deviation (RSD) for the LPG standard concentration were found to range between 0.27-1.91 % . The method had been a

APA, Harvard, Vancouver, ISO, and other styles

10

Preißler-Kurzhöfer, Hannes, Marcus Lange, Jens Möllmer, et al. "Hydrocarbon Sorption in Flexible MOFs—Part III: Modulation of Gas Separation Mechanisms." Nanomaterials 14, no. 3 (2024): 241. http://dx.doi.org/10.3390/nano14030241.

Full text

Abstract:

Single gas sorption experiments with the C4-hydrocarbons n-butane, iso-butane, 1-butene and iso-butene on the flexible MOFs Cu-IHMe-pw and Cu-IHEt-pw were carried out with both thermodynamic equilibrium and overall sorption kinetics. Subsequent static binary gas mixture experiments of n-butane and iso-butane unveil a complex dependence of the overall selectivity on sorption enthalpy, rate of structural transition as well as steric effects. A thermodynamic separation favoring iso-butane as well as kinetic separation favoring n-butane are possible within Cu-IHMe-pw while complete size exclusion

APA, Harvard, Vancouver, ISO, and other styles

11

Hanaoka, Toshiaki, Masaru Aoyagi, and Yusuke Edashige. "Synthesis of n-Butene via Dimethyl Ether-to-Olefin Reaction over P-Loaded Ferrierite Zeolites." Catalysts 14, no. 12 (2024): 902. https://doi.org/10.3390/catal14120902.

Full text

Abstract:

In the dimethyl ether (DME)-to-olefin (DTO) reaction over 20 types of P-loaded ferrierite zeolites with different P loading amounts, the synthesis of n-butenes such as 1-butene, trans-2-butene, and cis-2-butene was investigated to maximize the n-butene yield by optimizing the P loading amount. The zeolites were characterized using X-ray diffractometry (XRD), N2 adsorption-desorption isotherms, and NH3 temperature-programmed desorption (NH3-TPD). Micropore and external surface areas, total pore and micropore volumes, and weak and strong acids affected the DTO reaction’s characteristics. The P-l

APA, Harvard, Vancouver, ISO, and other styles

12

Andrei, Andrei Maxim, and Costin Sorin Bildea. "Optimization and Control of Propylene Production by Metathesis of 2-Butene." Processes 11, no. 5 (2023): 1325. http://dx.doi.org/10.3390/pr11051325.

Full text

Abstract:

This article considers the design and control of the 2-butene metathesis process. The process transforms a low-value feedstock derived from a fluid catalytic cracking unit into more valuable products. The economical optimization is applied to the preheat–reaction and separation sections, with the objective of minimizing the total annual cost. The dynamic response and control of the plant are evaluated for feed flow perturbations. Although the process control system acts as a first line of defense against potential hazards, other independent safety layers are discussed with safety limits specif

APA, Harvard, Vancouver, ISO, and other styles

13

Shu, Miao, Chuang Shi, Jing Yu, Xiao Chen, Changhai Liang, and Rui Si. "Efficient selective hydrogenation of 2-butyne-1,4-diol to 2-butene-1,4-diol by silicon carbide supported platinum catalyst." Catalysis Science & Technology 10, no. 2 (2020): 327–31. http://dx.doi.org/10.1039/c9cy01877h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Bethardy, G. A., Xiaouang Wang, and David S. Perry. "The role of molecular flexibility in accelerating intramolecular vibrational relaxation." Canadian Journal of Chemistry 72, no. 3 (1994): 652–59. http://dx.doi.org/10.1139/v94-090.

Full text

Abstract:

Evidence is presented to show that intramolecular vibrational relaxation (IVR) is faster in flexible molecules when the initially prepared vibration is close to the bond about which the large-amplitude motion occurs. In each of 1-pentyne, ethanol, and propargyl alcohol, IVR lifetimes are known for two different hydride stretches and in each molecule internal rotation connects gauche and trans conformers. In each case the vibration that is closer to the center of flexibility shows faster relaxation. This trend is supported by the available IVR lifetimes for other flexible molecules (hydrogen pe

APA, Harvard, Vancouver, ISO, and other styles

15

Taghi, T. Ch, I. J. Ahmadova, and V. L. Baghiyev. "DEPENDENCE OF THE ACTIVITY OF Ce-Zn-O CATALYSTS IN THE REACTION OF THE CONVERSION OF ETHANOL INTO ACETONE ON THE ACIDIC PROPERTIES OF THE SURFACE." Chemical Problems 21, no. 2 (2023): 146–52. http://dx.doi.org/10.32737/2221-8688-2023-2-146-152.

Full text

Abstract:

The reaction of ethanol conversion to acetone on binary cerium-zinc oxide catalysts has been studied. It has been established that the reaction products of the conversion of ethyl alcohol on binary cerium-zinc oxide catalysts are ethylene, acetaldehyde, acetone, carbon dioxide and, at high temperatures, destructive decomposition products. The highest yield of acetone is observed on samples rich in zinc at temperatures of the order of 450-550°C, while catalysts rich in cerium are active in the reaction of dehydration of ethanol to ethylene. In this work, the acid properties of cerium-zinc oxide

APA, Harvard, Vancouver, ISO, and other styles

16

Manzanares I., Carlos, Victor M. Blunt, and Jingping Peng. "Spectroscopy of C-H stretching vibrations of gas-phase butenes: cis-2-butene, trans-2-butene, 2-methyl-2-butene, and 2,3-dimethyl-2-butene." Journal of Physical Chemistry 97, no. 16 (1993): 3994–4003. http://dx.doi.org/10.1021/j100118a013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Krampera, František, and Ludvík Beránek. "Kinetics of individual reactions in reaction network 1-butanol-di-(1-butyl) ether-butenes-water on alumina." Collection of Czechoslovak Chemical Communications 51, no. 4 (1986): 774–85. http://dx.doi.org/10.1135/cccc19860774.

Full text

Abstract:

The complex system of six reactions occurring when 1-butanol is dehydrated on alumina at 260 °C was investigated. Initial kinetics of 1-butanol, di-(1-butyl) ether and 1-butene transformations were analyzed and best fitting rate equations for all reactions were selected. The inhibiting effects of water on initial rates was quantitatively expressed. Very low conversion data provided additional evidence for the validity of the parallel-consecutive reaction network of alcohol dehydration. In all the alkene-forming reactions, 1-butene was the primary product which was then isomerized into a mixtur

APA, Harvard, Vancouver, ISO, and other styles

18

Sánchez-García, José-Luis, Brent E. Handy, Ilse N. Ávila-Hernández, Angel G. Rodríguez, Ricardo García-Alamilla, and Maria-Guadalupe Cardenas-Galindo. "Structure, Acidity, and Redox Aspects of VOx/ZrO2/SiO2 Catalysts for the n-Butane Oxidative Dehydrogenation." Catalysts 10, no. 5 (2020): 550. http://dx.doi.org/10.3390/catal10050550.

Full text

Abstract:

ZrOx/SiO2 and VOx/ZrOx/SiO2 catalysts (5 wt %–25 wt % Zr, 4 wt % V) were prepared by grafting zirconium and vanadium alkoxides on Aerosil 380. All samples were characterized by temperature programmed reduction, N2 physisorption, X-ray diffraction, Raman spectroscopy, and ammonia adsorption microcalorimetry. Tetragonal ZrO2 and zircon (ZrSiO4) were present at 25 wt % Zr, but only amorphous zirconia overlayer existed for lower loadings. At lower Zr loadings (5 wt %–10 wt % Zr), exposed silica surface leads to V2O5 crystallites and isolated VO4 species, although V reducibility behavior changes, f

APA, Harvard, Vancouver, ISO, and other styles

19

Rode, C. V., P. R. Tayade, J. M. Nadgeri, R. Jaganathan, and R. V. Chaudhari. "Continuous Hydrogenation of 2-Butyne-1,4-diol to 2-Butene- and Butane-1,4-diols." Organic Process Research & Development 10, no. 2 (2006): 278–84. http://dx.doi.org/10.1021/op050216r.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Agaguseynova, Minira M., Gunel I. Amanullayeva, and Zehra E. Bayramova. "CATALYSTS OF OXIDATION REACTION OF BUTENE-1 TO METHYLETHYLKETONE." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 61, no. 2 (2018): 53. http://dx.doi.org/10.6060/tcct.20186102.5693.

Full text

Abstract:

The available and simple metal complex systems of catalytic oxidation of unsaturated hydrocarbons were developed. It is shown that these systems catalyze the selective liquid-phase oxidation of butene-1 to methyl ethyl ketone by molecular oxygen at low temperature. The best results were revealed using Cu(I)Cl monovalent chloride. The catalyst for the production of methylethylketone is a binary system containing complexes of copper and palladium chloride at a molar ratio of 2:1. Hexamethylphosphoramide is used as the ligand and palladium chloride complex as an additional complex contains benzon

APA, Harvard, Vancouver, ISO, and other styles

21

Dyson, Paul J., David J. Ellis, and Thomas Welton. "A temperature-controlled reversible ionic liquid - water two phase - single phase protocol for hydrogenation catalysis." Canadian Journal of Chemistry 79, no. 5-6 (2001): 705–8. http://dx.doi.org/10.1139/v01-084.

Full text

Abstract:

An ionic liquid water system that undergoes a reversible two phase single phase transformation dependent upon temperature has been used as a novel medium for the transition-metal-catalyzed hydrogenation of a water soluble substrate. At room temperature, the ionic liquid 1-octyl-3-methylimidizolium tetrafluoroborate, containing [Rh(η4-C7H8)(PPh3)2][BF4] catalyst, forms a separate layer to water containing 2-butyne-1,4-diol. In a stirred autoclave the mixture was pressurized with hydrogen to 60 atm (1 atm = 101.325 kPa) and heated to 80°C giving a homogeneous single phase solution. On coolin

APA, Harvard, Vancouver, ISO, and other styles

22

MANZANARES I., C., V. M. BLUNT, and J. PENG. "ChemInform Abstract: Spectroscopy of C-H Stretching Vibrations of Gas-Phase Butenes: cis-2- Butene, trans-2-Butene, 2-Methyl-2-butene, and 2,3-Dimethyl-2-butene." ChemInform 24, no. 32 (2010): no. http://dx.doi.org/10.1002/chin.199332030.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Haimi, Piia, Petri Uusi-Kyyny, Juha-Pekka Pokki, Minna Pakkanen, and Kari I. Keskinen. "Vapour–liquid equilibrium for the ethyl ethanoate+1-butene, +cis-2-butene, +trans-2-butene, +2-methylpropene, +n-butane and +2-methylpropane." Fluid Phase Equilibria 230, no. 1-2 (2005): 21–28. http://dx.doi.org/10.1016/j.fluid.2004.10.023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Dell’Era, Claudia, Juha-Pekka Pokki, Petri Uusi-Kyyny, Minna Pakkanen, and Ville Alopaeus. "Vapour–liquid equilibrium for the systems diethyl sulphide+1-butene, +cis-2-butene, +2-methylpropane, +2-methylpropene, +n-butane, +trans-2-butene." Fluid Phase Equilibria 291, no. 2 (2010): 180–87. http://dx.doi.org/10.1016/j.fluid.2010.01.006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Hemer, Ivan, Věra Moravcová, and Václav Dědek. "Reaction of 1,4-dibromohexafluoro-2-butene with O- and N-nucleophiles." Collection of Czechoslovak Chemical Communications 53, no. 3 (1988): 619–25. http://dx.doi.org/10.1135/cccc19880619.

Full text

Abstract:

Reaction of 1,4-dibromohexafluoro-2-butene (I) with sodium methoxide, ethoxide or isopropoxide in the corresponding alcohols proceeds with allylic rearrangement under formation of 3-alkoxy-4-bromohexafluoro-1-butenes II-IV. A kinetic study has proven the SN2’ mechanism for reaction of I with potassium phenoxide leading to 4-bromo-3-phenoxyhexafluoro-1-butene (V). Also the reaction of I with ammonia, affording 3-amino-4-bromo-2,4,4-trifluoro-2-butenenitrile (IX), is compatible with the allylic rearrangement by SN2’ mechanism. On the contrary, reaction of I with diethylamine gave no rearrangemen

APA, Harvard, Vancouver, ISO, and other styles

26

Guan, Jiwen, Roshan Daljeet, and Yang Song. "Pressure-selected reactivity between 2-butyne and water induced by two-photon excitation." Canadian Journal of Chemistry 95, no. 11 (2017): 1212–19. http://dx.doi.org/10.1139/cjc-2017-0155.

Full text

Abstract:

High-pressure photochemistry between 2-butyne (H3CC≡CCH3) and trace amount of H2O was investigated at room temperature using multiline UV radiation at λ ≈ 350 nm and monitored by FTIR spectroscopy. Instead of the expected polymerization of 2-butyne, the IR spectral analysis suggests the formation of cis- and trans-2-butene, as well as 2-butanone, as the primary products. The possible reaction mechanisms and production pathways of these products were examined, where the dissociation of water molecule as the other reactant is believed as the essential step of the photochemical reaction. We furth

APA, Harvard, Vancouver, ISO, and other styles

27

Seo, Hyun, Jong Kwon Lee, Ung Gi Hong та ін. "Direct Dehydrogenation of n-Butane Over Pt/Sn/Zn/γ-Al2O3 Nano-Catalyst: Effect of Zn Content". Journal of Nanoscience and Nanotechnology 15, № 10 (2015): 8318–23. http://dx.doi.org/10.1166/jnn.2015.11243.

Full text

Abstract:

A series of Pt/Sn/XZn/γ-Al2O3 nano-catalysts with different Zn content (X = 0, 0.25, 0.5, 0.75, and 1.0 wt%) were prepared by a sequential impregnation method. They were applied to the direct dehydrogenation of n-butane to n-butene and 1,3-butadiene. The effect of zinc content of Pt/Sn/XZn/γ-Al2O3 nano-catalysts on their physicochemical properties and catalytic activities in the direct dehydrogenation of n-butane was investigated. The catalytic performance of Pt/Sn/XZn/γ-Al2O3 nano-catalysts strongly depended on zinc content. Among the catalysts tested, Pt/Sn/0.5Zn/γ-Al2O3 nano-catalyst showed

APA, Harvard, Vancouver, ISO, and other styles

28

Soficheva, О. S., G. E. Bekmukhamedov та D. G. Yakhvarov. "Catalytic Synthesis of Butene-1 and Hexene-1 in the Homogeneous Oligomerization of Ethylene in the Presence of Nickel Complexes Based on N-Heteroaryl-Substituted α-Diphenylphosphinoglycines". Кинетика и катализ 65, № 1 (2024): 12–21. http://dx.doi.org/10.31857/s0453881124010029.

Full text

Abstract:

It has been experimentally shown that N-heteroaryl-substituted α-diphenylphosphinoglycines N-(pyrazin-2-yl)-α-diphenylphosphinoglycine, N-(pyridin-2-yl)-α-diphenylphosphinoglycine and N-(pyrimidin-2-yl)-α-diphenylphosphinoglycine obtained by the reaction of three-component condensation of diphenylphosphine, the corresponding primary amine and glyoxylic acid monohydrate are capable in combination with Ni(COD)₂, where COD is cyclooctadiene-1,5, to form active forms of catalysts for selective homogeneous dimerization and trimerization of ethylene with the formation of butene-1 and hexene-1 as the

APA, Harvard, Vancouver, ISO, and other styles

29

Pasanen, Matti, Petri Uusi-Kyyny, Juha-Pekka Pokki, Minna Pakkanen, and Juhani Aittamaa. "Vapor−Liquid Equilibrium for 1-Propanol + 1-Butene, +cis-2-Butene, + 2-Methyl-propene, +trans-2-Butene, +n-Butane, and + 2-Methyl-propane." Journal of Chemical & Engineering Data 49, no. 6 (2004): 1628–34. http://dx.doi.org/10.1021/je049959i.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

You, Nansuk, Jin-Heong Yim, Seong Jun Lee, Jae Ho Lee, Young-Kwon Park, and Jong-Ki Jeon. "Positional Isomerization of Butene-2 over Nanoporous MCM-48 Catalysts." Journal of Nanoscience and Nanotechnology 7, no. 11 (2007): 3800–3804. http://dx.doi.org/10.1166/jnn.2007.042.

Full text

Abstract:

Positional isomerization of butene-2 to butene-1 was investigated over nanoporous MCM-48 catalysts. The effects of the method and the amount of aluminum incorporation into MCM-48 on the catalyst characteristics were studied, with respect to the butene-2 isomerization reaction. Incorporation of aluminum into MCM-48 using a post-synthetic grafting method (P) or direct sol–gel method (D) increases the total acid amount due to the increase in the Lewis acidity level. From the results of butene-2 isomerization, the yield of butene-1 was increased although the selectivity of butene-1 was decreased d

APA, Harvard, Vancouver, ISO, and other styles

31

Boretskaya, A. V., I. R. Il’yasov, and A. A. Lamberov. "Structural and Electron Properties of High-Disperse Particles of the Active Component of Pd/Al2O3 Catalysts for Hydrogenation of Butadiene-1,3." Kataliz v promyshlennosti 19, no. 2 (2019): 114–22. http://dx.doi.org/10.18412/1816-0387-2019-2-114-122.

Full text

Abstract:

Studies of the influence of acidity of alumina supports on properties of supported palladium particles were aimed at improving the activity of catalysts for hydrogenation of unsaturated hydrocarbons of pyrolysis gasoline fraction. High-disperse palladium particles demonstrate the high catalytic activity but their electron deficiency make them suffering from blocking with unsaturated hydrocarbons. NH3 TPR, TEM and XPS techniques were used for studying aluminopalladium catalysts; different acidities of the catalyst supports resulted from their chemical modification with various agents. The catal

APA, Harvard, Vancouver, ISO, and other styles

32

Zheng, Huidong, Jingjing Chen, Fangdi Wu, and Suying Zhao. "Molecular dynamics simulation on the interfacial features of supercritical 1-butene/subcritical water." Journal of Theoretical and Computational Chemistry 13, no. 08 (2014): 1450066. http://dx.doi.org/10.1142/s0219633614500667.

Full text

Abstract:

We studied the interfacial features of 1-butene/water and extraction process of 2-butanol by molecular dynamics (MD) simulations. The infinite dilute diffusion coefficients of 1-butene in water is larger than that of 2-butanol, and one important reason is that 2-butanol molecules can form hydrogen bonds with water molecules. 1-butene is more soluble in water under supercritical condition than that under subcritical condition. 1-butene under supercritical condition can extract more 2-butanol from aqueous solution than that under other conditions. A process of producing 2-butanol by the direct h

APA, Harvard, Vancouver, ISO, and other styles

33

Wiberg, Kenneth B., Yi-gui Wang, Patrick H. Vaccaro, James R. Cheeseman, Gary Trucks, and Michael J. Frisch. "Optical Activity of 1-Butene, Butane, and Related Hydrocarbons." Journal of Physical Chemistry A 108, no. 1 (2004): 32–38. http://dx.doi.org/10.1021/jp030361b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Giroux, L., M. H. Back, and R. A. Back. "The photolysis of ethylene at 193 nm." Canadian Journal of Chemistry 67, no. 7 (1989): 1166–73. http://dx.doi.org/10.1139/v89-176.

Full text

Abstract:

The photolysis of ethylene has been studied at pressures from 50 to 3000 Torr using a pulsed ArF excimer laser at 193.3 nm. Major products were acetylene, n-butane, 1-butene, ethane, and 1,3-butadiene, with smaller amounts of propane, propene, methane, and allene. Quantum yields varied with pressure and reaction time; the latter dependence is ascribed to secondary photolysis of butene and butadiene. The reaction products are accounted for by three primary processes:[Formula: see text]followed by reactions of H, [Formula: see text] and C2H5 radicals. The vibrationally excited C2H3radical can de

APA, Harvard, Vancouver, ISO, and other styles

35

Hanaoka, Toshiaki, Masaru Aoyagi, and Yusuke Edashige. "Improvement of n-Butene Yield in Dimethyl Ether-to-Olefin Reaction Using Ferrierite Zeolite Catalysts." Catalysts 13, no. 7 (2023): 1040. http://dx.doi.org/10.3390/catal13071040.

Full text

Abstract:

Various ferrierite zeolites were investigated as catalysts for the dimethyl ether (DME)-to-olefin (DTO) reactions to efficiently synthesize n-butene, such as 1-butene, trans-2-butene, and cis-2-butene except for iso-butene using a fixed-bed flow reactor. Twenty P-loaded ferrierite zeolites with different structural parameters and acidic properties were prepared by the impregnation method by varying the P content and the temperature of air calcination as a pretreatment. The zeolites were characterized by X-ray diffraction (XRD), N2 adsorption-desorption, and NH3 temperature-programmed desorptio

APA, Harvard, Vancouver, ISO, and other styles

36

Hanaoka, Toshiaki, Masaru Aoyagi, and Yusuke Edashige. "n-Butene Synthesis in the Dimethyl Ether-to-Olefin Reaction over Zeolites." Catalysts 11, no. 6 (2021): 743. http://dx.doi.org/10.3390/catal11060743.

Full text

Abstract:

Zeolite catalysts that could allow the efficient synthesis of n-butene, such as 1-butene, trans-2-butene, and cis-2-butene, in the dimethyl ether (DME)-to-olefin (DTO) reaction were investigated using a fixed-bed flow reactor. The zeolites were characterized by N2 adsorption and desorption, X-ray diffraction (XRD), thermogravimetry (TG), and NH3 temperature-programmed desorption (NH3-TPD). A screening of ten available zeolites indicated that the ferrierite zeolite with NH4+ as the cation showed the highest n-butene yield. The effect of the temperature of calcination as a pretreatment method on

APA, Harvard, Vancouver, ISO, and other styles

37

Still, Ian W. J., та Donna Kaye T. Wilson. "α-Oxosulfines: reactions with alkenes and alkynes". Canadian Journal of Chemistry 70, № 3 (1992): 964–73. http://dx.doi.org/10.1139/v92-129.

Full text

Abstract:

Thiochroman-4-one 1,1-dioxide has been successfully converted into 3-sulfinylthiochroman-4-one 1,1-dioxide and the reactions of this α-oxosulfine with a series of alkenes have been carefully investigated. The α-oxosulfine was found to react as a Diels–Alder diene with 2-methylpropene, Z- and E-2-butene, 2-ethyl-1-butene, 1-pentene, Z-2-pentene, and cyclopentene and cyclohexene to produce a new group of heterocyclic compounds, the 2,3-dihydro-5H-1,4-oxathiino[3,2-c][1]benzothiopyrans, in yields ranging from 21 to 42%. In all cases, formation of the Diels–Alder adduct was accompanied by a second

APA, Harvard, Vancouver, ISO, and other styles

38

Leigh, William J., Kangcheng Zheng, and K. Brady Clark. "Cyclobutene photochemistry. Substituent and wavelength effects on the photochemical ring opening of monocyclic alkylcyclobutenes." Canadian Journal of Chemistry 68, no. 11 (1990): 1988–97. http://dx.doi.org/10.1139/v90-305.

Full text

Abstract:

The photochemical ring opening of cis- and trans-3,4-dimethyl-, 1,3,4-trimethyl-, and 1,2,3,4-tetramethylcyclobutene (1, 3, and 4, respectively) has been investigated in hydrocarbon solution with 193 nm and 214 nm light sources. Ring opening is non-stereospecific in all cases at both wavelengths. The ratio of dienes formed by the formally allowed to formally forbidden pathways in the photolysis of these compounds is highest (ca. 2) for the trimethylcyclobutenes, and approximately 1 for both cis and trans isomers of the di- and tetramethylcyclobutenes with 193 nm excitation. The diene distribut

APA, Harvard, Vancouver, ISO, and other styles

39

Tétényi, Pál, Tibor Szarvas, and Tamás Ollár. "Experimental proof of thiophene hydrodesulfurization reaction steps by isotope (14C) labeled thiophene." Reaction Kinetics, Mechanisms and Catalysis 134, no. 2 (2021): 697–710. http://dx.doi.org/10.1007/s11144-021-02086-6.

Full text

Abstract:

AbstractHydrodesulfurization of thiophene has been studied over alumina supported sulfided molybdena, nickel-promoted molybdena and over nickel (Mo, NiMo and Ni) catalysts. The experiments were carried out with a mixture of thiophene, labeled with radioactive carbon (thiophene-[G-]-14C) and of non-radioactive tetrahydrothiophene (1:1 mol ratio) in a micro catalytic system. It was established, that the main products were tetrahydrothiophene-14C, 1-butene-14C, 2-butene-14C, butane-14C. Tetrahydrothiophene-14C was a major intermediate in the conversion of thiophene—14C in the experimental conditi

APA, Harvard, Vancouver, ISO, and other styles

40

Shesterkina, Anastasiya A., Anna A. Strekalova, Elena V. Shuvalova, Gennady I. Kapustin, Olga P. Tkachenko, and Leonid M. Kustov. "CuO-Fe2O3 Nanoparticles Supported on SiO2 and Al2O3 for Selective Hydrogenation of 2-Methyl-3-Butyn-2-ol." Catalysts 11, no. 5 (2021): 625. http://dx.doi.org/10.3390/catal11050625.

Full text

Abstract:

In this study, novel SiO2- and Al2O3-supported Cu-Fe catalysts are developed for selective hydrogenation of 2-methyl-3-butyne-2-ol to 2-methyl-3-butene-2-ol under mild reaction conditions. TEM, XRD, and FTIR studies of adsorbed CO and TPR-H2 are performed to characterize the morphology, nanoparticle size, and particle distribution, as well as electronic state of deposited metals in the prepared catalysts. The deposition of Fe and Cu metal particles on the aluminum oxide carrier results in the formation of a mixed oxide phase with a strong interaction between the Fe and Cu precursors during the

APA, Harvard, Vancouver, ISO, and other styles

41

Arnold, Donald R., and Shelley A. Mines. "Radical ions in photochemistry. 21. The photosensitized (electron transfer) tautomerization of alkenes; the phenyl alkene system." Canadian Journal of Chemistry 67, no. 4 (1989): 689–98. http://dx.doi.org/10.1139/v89-105.

Full text

Abstract:

Alkenes, conjugated with a phenyl group, can be converted to nonconjugated tautomers by sensitized (electron transfer) irradiation. For example, irradiation of an acetonitrile solution of the conjugated alkene 1-phenylpropene, the electron accepting photosensitizer 1,4-dicyanobenzene, the cosensitizer biphenyl, and the base 2,4,6-trimethylpyridine gave the nonconjugated tautomer 3-phenylpropene in good yield. Similarly, 2-methyl-1-phenylpropene gave 2-methyl-3-phenylpropene, and 1-phenyl-1-butene gaveE- and Z-1-phenyl-2-butene. The reaction also works well with cyclic alkenes. For example, 1-p

APA, Harvard, Vancouver, ISO, and other styles

42

Faghihian, H., and M. Pirouzi. "Cis/trans-but-2-ene adsorption on natural and modified clinoptilolite." Clay Minerals 44, no. 3 (2009): 405–9. http://dx.doi.org/10.1180/claymin.2009.044.3.405.

Full text

Abstract:

AbstractAdsorption of cis-2-butene and trans-2-butene on clinoptilolite-rich tuff and ion-exchanged forms was investigated. Clinoptilolite samples were characterized by X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, chemical analysis and nitrogen adsorption techniques. Adsorption isotherms for cis and trans 2-butene on purified clinoptilolite (Cp) and modified forms (Na-Cp, K-Cp, Ca-Cp and Mg-Cp) were obtained at pressures up to 2.7 atm. and at 25ºC. The results show that natural clinoptilolite has a considerable potential for separation of the two hydrocarbons. Mg-Cp

APA, Harvard, Vancouver, ISO, and other styles

43

Pérez Oliveros, Jaime Olmedo, and Bibiana del Carmen Molina García. "1-Butanol dehydration as catalytic test to determine acidity of solid acids." Revista Facultad de Ingeniería Universidad de Antioquia, no. 33 (October 31, 2005): 7–20. http://dx.doi.org/10.17533/udea.redin.344283.

Full text

Abstract:

Catalytic dehydration of 1-Butanol was used as a test reaction to determine the nature of acid sites on several samples: undoped and doped sulfated-zirconia (dopants: Ce, W, or Sb), ZSM-5, Al-MCM-41 and permutite (amorphous aluminosilicate). Acid strength for each sample was ranked according to its catalytic activity. Catalysts exhibiting similar activity can be compared by the isomer ratios: cis-butene/trans-butene (CB/TB), 1-butene/trans-butene (1B/TB), and isobutene/ trans-butene (IB/TB). It was found that the activity of the sulfated-zirconia was directly proportional to the sulfate conten

APA, Harvard, Vancouver, ISO, and other styles

44

Van Ginkel, C. G., H. G. J. Welten, S. Hartmans, and J. A. M. De Bont. "Metabolism of trans-2-Butene and Butane in Nocardia TB1." Microbiology 133, no. 7 (1987): 1713–20. http://dx.doi.org/10.1099/00221287-133-7-1713.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Rakhimov, M. N., T. M. Beloklokova, Zh F. Galimov, and A. V. Pankratov. "Stability of properties of catalysts for butane-butene fraction oligomerization." Chemistry and Technology of Fuels and Oils 34, no. 6 (1998): 379–81. http://dx.doi.org/10.1007/bf02694127.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Cui, Peng, Guoying Zhao, Hailing Ren, Jun Huang, and Suojiang Zhang. "Ionic liquid enhanced alkylation of iso-butane and 1-butene." Catalysis Today 200 (February 2013): 30–35. http://dx.doi.org/10.1016/j.cattod.2012.06.008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Kotov, S. V., V. N. Filin, K. V. Prokof'ev, I. S. Morozova, and L. D. Kalinina. "Two-stage synthesis of oligobutenetoluenes from commercial butane-butene fraction." Chemistry and Technology of Fuels and Oils 27, no. 4 (1991): 188–90. http://dx.doi.org/10.1007/bf01129513.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Strazdaite, Simona, Ruta Bariseviciute, Justinas Ceponkus, and Valdas Sablinskas. "Conformational isomerism of 1-butene secondary ozonide as studied by means of matrix isolation infrared absorption spectroscopy." Open Chemistry 10, no. 5 (2012): 1647–56. http://dx.doi.org/10.2478/s11532-012-0077-3.

Full text

Abstract:

AbstractTheoretical calculations of structures, stability and vibrational spectra of 1-butene secondary ozonide (SOZ) conformers were performed using DFT method B3LYP with a 6-311++G(3df, 3pd) basis set. The calculations predict six staggered structures of 1-butene SOZ. The FTIR spectra of 1-butene SOZ isolated in Ar, N2 and Xe matrices were recorded. It was found that nitrogen is the best suited for the matrix isolation of 1-butene SOZ. The bandwidth of the spectral bands of the ozonide isolated in nitrogen was as narrow as 2 cm−1. For the first time the existence of five conformers of 1-bute

APA, Harvard, Vancouver, ISO, and other styles

49

WU, PING, JOHNNY TRUONG, YONGSHUN HUANG, and JIAXING LI. "REGIOSELECTIVITY INVESTIGATION FOR THE PYROLYSIS OF XANTHATES: A COMPUTATIONAL STUDY." Journal of Theoretical and Computational Chemistry 12, no. 07 (2013): 1350064. http://dx.doi.org/10.1142/s0219633613500648.

Full text

Abstract:

MP2/6-31+G(d,p)//MP2/6-31G(d) method was employed to investigate the pyrolyses of O -sec-butyl S -methyl xanthate (Chugeav reaction) and S -sec-butyl O -methyl xanthate, which gave regioselective products of E-butene, Z-butene and 1-butene. Both procedures were found to have 13 possible pathways, of which nine pathways would generate the alkene products. For O -sec-butyl S -methyl xanthate, the computational results indicated that the most favorable three pathways corresponded to a two-step mechanism, with the rate-determining step to be a thion sulfur atom involved six-membered ring transitio

APA, Harvard, Vancouver, ISO, and other styles

50

Xia, Jingjing, Abdullah M. Asiri, Khalid A. Alamry, Ping Wu, and Zhihao Huang. "Pyrolysis of (thio)carbonates via computation analysis." Journal of Theoretical and Computational Chemistry 17, no. 06 (2018): 1850041. http://dx.doi.org/10.1142/s0219633618500414.

Full text

Abstract:

The regioselective production of alkenes from (thio)carbonates was calculated by MP2/6-31G(d) method via pyrolysis processes. Four (thio)carbonates were calculated in this paper. They are S-sec-butyl O-methyl thiocarbonate (I), O-sec-butyl S-methyl thiocarbonate (II), sec-butyl methyl thioncarbonate (III), and sec-butyl methyl dithiocarbonate (IV). Thirteen potential thermolysis routes were revealed for the pyrolysis of each substance, including nine routes to produce regioselective alkenes and four rearrangement/decompose alternatives. Among nine alkene generation routes, six-membered ring tr

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!