Relevant bibliographies by topics / Sulphur cycle

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Sulphur cycle'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Sulphur cycle.'

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.

Journal articles on the topic "Sulphur cycle"

1

Strauss, Harald. "Sulphur isotopes and the early Archaean sulphur cycle." Precambrian Research 126, no. 3-4 (October 2003): 349–61. http://dx.doi.org/10.1016/s0301-9268(03)00104-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Janssen, A. J. H., R. Ruitenberg, and C. J. N. Buisman. "Industrial applications of new sulphur biotechnology." Water Science and Technology 44, no. 8 (October 1, 2001): 85–90. http://dx.doi.org/10.2166/wst.2001.0471.

Full text
Abstract:
The emission of sulphur compounds into the environment is undesirable because of their acidifying characteristics. The processing of sulphidic ores, oil refining and sulphuric acid production are major sources of SO2 emissions. Hydrogen sulphide is emitted into the environment as dissolved sulphide in wastewater or as H2S in natural gas, biogas, syngas or refinery gases. Waste streams containing sulphate are generated by many industries, including mining, metallurgical, pulp and paper and petrochemical industries. Applying process technologies that rely on the biological sulphur cycle can prevent environmental pollution. In nature sulphur compounds may cycle through a series of oxidation states (-2, 0, +2, +4, +6). Bacteria of a wide range of genera gain metabolic energy from either oxidising or reducing sulphur compounds. Paques B.V. develops and constructs reactor systems to remove sulphur compounds from aqueous and gaseous streams by utilising naturally occurring bacteria from the sulphur cycle. Due to the presence of sulphide, heavy metal removal is also achieved with very high removal efficiencies. Ten years of extensive laboratory and pilot plant research has, to date, resulted in the construction of over 30 full-scale installations. This paper presents key processes from the sulphur cycle and discusses recent developments about their application in industry.
APA, Harvard, Vancouver, ISO, and other styles
3

Lovelock, James. "A geophysiologist's thoughts on the natural sulphur cycle." Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 352, no. 1350 (February 28, 1997): 143–47. http://dx.doi.org/10.1098/rstb.1997.0009.

Full text
Abstract:
The climate depends on the atmospheric abundance of sulphur aerosols at all levels up to the stratopause. Volcanoes, combustion and biological emissions all contribute and usually result in cooling. The history of this topic is lively and goes back at least to the eighteenth century with Benjamin Franklin's comments on the cooling effects of the sulphuric acid aerosol from the Icelandic volcano, Laki. Mitchell first drew attention to the potential cooling effects of combustion aerosols. Charlson and his colleagues proposed that emissions of dimethyl sulphide (DMS) from ocean algae might also be important. More recently, Lovelock and Kump drew attention to the decline of biological sulphur emissions with global warming and the possible consequence of a positive feedback on climate change. The geophysiological aspects, which arose from the Gaia hypothesis in the early 1970s, form an important part of the account that follows.
APA, Harvard, Vancouver, ISO, and other styles
4

Hamilton, E. I. "The global biogeochemical sulphur cycle." Science of The Total Environment 41, no. 2 (February 1985): 195–96. http://dx.doi.org/10.1016/0048-9697(85)90190-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Tichy, R., W. H. Rulkens, J. T. C. Grotenhuis, V. Nydl, C. Cuypers, and J. Fajtl. "Bioleaching of metals from soils or sediments." Water Science and Technology 37, no. 8 (April 1, 1998): 119–27. http://dx.doi.org/10.2166/wst.1998.0316.

Full text
Abstract:
Bioleaching can be one of few techniques applicable for the removal of toxic metals from polluted soils or sediments. Its principle is a microbial production of sulphuric acid and leaching of metals with it. The use of bioleaching can benefit from the use of low-cost substrates and from a possible coupling to other processes of microbial sulphur cycle, like sulphate reduction to treat spent bioleaching liquor, or partial sulphide oxidation to recycle sulphur. For the evaluation of bioleaching, the existence of different leaching strategies is considered, i.e. intensive or extensive extraction. The intensive extraction uses high concentrations of acid at short extraction times, whereas low acid additions and long treatment times are used in extensive processes. On a reference study with wetland sediment receiving mine drainage we demonstrated that the bioleaching is a typical extensive process. The bioleaching experiments involved the use of the different sulphur substrates, i.e. orthorhombic sulphur flower and microbially produced, recycled sulphur from partial sulphide oxidation process. The latter type of sulphur substrate performed considerably better.
APA, Harvard, Vancouver, ISO, and other styles
6

Holland, Heinrich D. "Evolution of the global biogeochemical sulphur cycle." Geochimica et Cosmochimica Acta 54, no. 6 (June 1990): 1859. http://dx.doi.org/10.1016/0016-7037(90)90419-l.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Jørgensen, Bo Barker. "Unravelling the sulphur cycle of marine sediments." Environmental Microbiology 21, no. 10 (July 11, 2019): 3533–38. http://dx.doi.org/10.1111/1462-2920.14721.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Benarie, Michel. "Evolution of the global biogeochemical sulphur cycle." Science of The Total Environment 104, no. 3 (May 1991): 251. http://dx.doi.org/10.1016/0048-9697(91)90079-t.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

BARBAROSSA, V., S. BRUTTI, M. DIAMANTI, S. SAU, and G. DEMARIA. "Catalytic thermal decomposition of sulphuric acid in sulphur–iodine cycle for hydrogen production." International Journal of Hydrogen Energy 31, no. 7 (June 2006): 883–90. http://dx.doi.org/10.1016/j.ijhydene.2005.08.003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Gordon, Roman, Andrés González, Jorge Franco, Nivaldo De Gracia, Adys De Herrera, and William Raun. "Evaluación de dosis y métodos de aplicación de azufre y su efecto residual en el cultivo de maíz en dos localidades de Azuero, Panamá." Agronomía Mesoamericana 3 (June 22, 2016): 52. http://dx.doi.org/10.15517/am.v3i0.25206.

Full text
Abstract:
Two trials were conducted in 1990 in the zone of Azuero-Panama, to observe the response of the corn to the residual effect of sulphur (CaS04) under two application methods. In 1989, sulphur was broadcasted at arate of 0.20, 40 and 80 kg/ha, or handspiked at arate of 0.20 and 40 kg/ha. During the second cycle (1990), only 100 kg/ha of N were applied to the plots in order to observe the residual effect of the treatments. There was a lineal response for the two bypsum application methods in the first cycle, but there was no interaction among these two independent variables. The fact that one of the. highest yields wasobtained with a 20 kg/ha, doseshows us that a low dosage of this element is anough to have significant responses. The resiudal response of the sulphur application (1990) was highly significant getting yield increments ranging from 0.483 to 1.682 t/ha. The economic analysis of the two cycles (1989-1990) showed that the sulphur application was profitable with respect to the dose 0 (zero), given the low cost of the agricultural gypsum.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Sulphur cycle"

1

Nyoni, Bothwell. "Simulation of the sulphur iodine thermochemical cycle / Bothwell Nyoni." Thesis, North-West University, 2011. http://hdl.handle.net/10394/6685.

Full text
Abstract:
The demand for energy is increasing throughout the world, and fossil fuel resources are diminishing. At the same time, the use of fossil fuels is slowly being reduced because it pollutes the environment. Research into alternative energy sources becomes necessary and important. An alternative fuel should not only replace fossil fuels but also address the environmental challenges posed by the use of fossil fuels. Hydrogen is an environmentally friendly substance considering that its product of combustion is water. Hydrogen is perceived to be a major contender to replace fossil fuels. Although hydrogen is not an energy source, it is an energy storage medium and a carrier which can be converted into electrical energy by an electrochemical process such as in fuel cell technology. Current hydrogen production methods, such as steam reforming, derive hydrogen from fossil fuels. As such, these methods still have a negative impact on the environment. Hydrogen can also be produced using thermochemical cycles which avoid the use of fossil fuels. The production of hydrogen through thermochemical cycles is expected to compete with the existing hydrogen production technologies. The sulphur iodine (SI) thermochemical cycle has been identified as a high-efficiency approach to produce hydrogen using either nuclear or solar power. A sound foundation is required to enable future construction and operation of thermochemical cycles. The foundation should consist of laboratory to pilot scale evaluation of the process. The activities involved are experimental verification of reactions, process modelling, conceptual design and pilot plant runs. Based on experimental and pilot plant data presented from previous research, this study presents the simulation of the sulphur iodine thermochemical cycle as applied to the South African context. A conceptual design is presented for the sulphur iodine thermochemical cycle with the aid of a process simulator. The low heating value (LHV) energy efficiency is 18% and an energy efficiency of 24% was achieved. The estimated hydrogen production cost was evaluated at $18/kg.
Thesis (M.Ing. (Chemical Engineering))--North-West University, Potchefstroom Campus, 2012.
APA, Harvard, Vancouver, ISO, and other styles
2

Shaw, Andrew Charles. "The simultaneous solubilty of sulphur dioxide and oxygen in water for the hybrid sulphur thermochemical cycle." Thesis, University of Sheffield, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489067.

Full text
Abstract:
Anthropogenic greenhouse gas emissions and rising oil prices call for a sustainable transportable energy source. Hydrogen is a promising replacement for carbon based fuels in vehicles. The HyS cycle, proposed by the Westinghouse Corporation, is a route to hydrogen production on a scale large enough to satisfy the requirements of the transport industry. The process is a hybrid thermochemical cycle based on the decomposition of sulphuric acid.
APA, Harvard, Vancouver, ISO, and other styles
3

Hatton, Angela. "Dimethylsulphoxide in seawater." Thesis, University of East Anglia, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296563.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Venter, Gerhardus Petrus. "Process sensitivity of the hybrid sulphur thermochemical cycle / Gerhard Venter." Thesis, North-West University, 2010. http://hdl.handle.net/10394/5067.

Full text
Abstract:
A simple flowsheet of the hybrid sulphur cycle was devised and a steady state simulation thereof was built in Aspen. A sensitivity analysis was done and the snowball effect was identified as a significant process control issue. The flowsheet will become more complex as other process alternatives are investigated and optimisation and heat integration are done. This will probably result in further process control complications that need to be identified and dealt with. A detailed literature study was done and future research needed was identified. This includes further research to be done into the electrolyser and the thermodynamics of the mixtures involved in the hybrid sulphur cycle. The control related lessons learned were summarised in a very preliminary control strategy.
Thesis (M.Ing. (Nuclear Engineering))---North-West University, Potchefstroom Campus, 2010.
APA, Harvard, Vancouver, ISO, and other styles
5

Banerjee, Manas Ranjan. "Characterisation of microbial release of available sulphur from soil to plants." Thesis, University of Aberdeen, 1992. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU043866.

Full text
Abstract:
The discovery of sulphur-deficient agricultural soils has focussed concern on the dynamics of sulphur transformations in soils and on the important role of the soil microbial population in mineralising organic sulphur to forms more available to plants. This thesis reports a study carried out to investigate the dynamics of supply of plant available sulphur from soils and includes development of a method for determination of microbial biomass S, comparison of a perfusion system with a plant bioassay to assess soil S-supply, characterisation of a fertilizer S budget for a crop-soil system and assessment of the role of VA mycorrhizas in plant S uptake. The first experiment was carried out to investigate the factors involved in determination of microbial biomass S in soil in order to develop a more reliable assay. Biomass S-concentrations were determined by chloroform fumigation/direct extraction (with determination of the Ks calibration constant using 35S labelled microorganisms). The effects of period of fumigation, the need for chloroform evacuation, the type of extractant, and the time of extraction were investigated. The optimium values for biomass-S were obtained using a 5 day fumigation period without chloroform evacuation (use of 35S labelled microorganisms demonstrated that there is a vacuum sensitive non-biomass S pool), with CaC12 as an extractant over a 1 h extraction period. The second experiment consisted of a simple, open perfusion system for studying the S-supplying capacity of soils. A range of soils were perfused at frequent intervals and the leachates analysed for inorganic and total sulphur. Results were compared with plant S-offtake from the same soils. Although greater amounts of sulphur were removed in the perfusion system, data from the techniques correlated strongly, suggesting the perfusion system can be effectively used to estimate the S-supplying capacity of soils.
APA, Harvard, Vancouver, ISO, and other styles
6

Pruett, Lee. "Stable Sulfur Isotope Rations from West Antarctica and the Tien Shan Mountains: Sulfur Cycle Characteristics from Two Environmentally Distinct Areas." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/PruettL2003.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Taylor, Marie. "Improved solvation routes for the Bunsen reaction in the sulphur iodine termochemical cycle." Thesis, University of Sheffield, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.522380.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Benbow, S. M. P. "Modelling the dimethysulphide feedback loop." Thesis, University of Liverpool, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293752.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wavrek, David A. "Role of sulphur in altering maturity-dependent biomarker transformations - a quantitative approach /." Access abstract and link to full text, 1992. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/9222155.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Stone, Howard Brian James. "Thermochemical hydrogen production from the sulphur-iodine cycle powered by solar or nuclear sources." Thesis, University of Southampton, 2007. https://eprints.soton.ac.uk/65716/.

Full text
Abstract:
Since mankind's adoption of fossil fuels as its primary energy carrier for heating, elec- tricity and transportation, the release of greenhouse gases into the atmosphere has increased constantly . A potential replacement energy carrier is hydrogen. Current industrial techniques for dissociating hydrogen from its common substances are con- ventionally reliant on fossil fuels and thus greenhouse gases are still released. As a mechanism to develop a hydrogen economy current industrial techniques will suffice; however, a long-term sustainable solution to hydrogen mass production that does not release greenhouses gases is desired. The United States of America Government be- lieves that the Sulphur-Iodine thermochemical hydrogen production cycle, thermally powered by a nuclear source, is the most likely long-term solution. A critical part of the Sulphur-Iodine cycle is the point of interaction between the thermal source and sulphuric acid used within the cycle. A novel bayonet heat exchanger made from silicon carbide is theoretically applied to the point of interaction. Through a combination of experiments and theoretical modelling, the bayonet heat exchanger is characterised. The bayonet model is then modified to simulate the intended nuclear reactor favoured by the United States Department of Energy. In addition, the bayo- net heat exchanger is analysed for a solar thermal application. An advanced design of the bayonet is also presented and theoretically analysed for its increased thermal efficiency.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Sulphur cycle"

1

Ober, Joyce A. The materials flow of sulfur. Reston, VA: U.S. Dept. of the Interior, U.S. Geological Survey, 2004.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

1942-, Cole J. A., and Ferguson S. J. 1949-, eds. The nitrogen and sulphur cycles. Cambridge: Cambridge University Press, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

1944-, Galloway James, and North Atlantic Treaty Organization. Scientific Affairs Division., eds. The biogeochemical cycling of sulfur and nitrogen in the remote atmosphere. Dordrecht, Holland: D. Reidel, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

V, Ivanov M., Nauchnyĭ t͡sentr biologicheskikh issledovaniĭ (Akademii͡a nauk SSSR), and Institut biokhimii i fiziologii mikroorganizmov (Akademii͡a nauk SSSR), eds. Globalʹnyĭ biogeokhimicheskiĭ t͡sikl sery v prirode i vlii͡anie na nego dei͡atelʹnosti cheloveka: Ukazatelʹ otechestvennoĭ i zarubezhnoĭ literatury, 1971-1985. Pushchino: Nauch. t͡sentr biologicheskikh issl. AN SSSR v Pushchine, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Katsiamboulas, A. Closed-cycle operation of sulphide ore roasters with zero sulphur emissions. Manchester: UMIST, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

R, Kennedy I. Acid soil and acid rain: The impact on the environment of nitrogen and sulphur cycling. Letchworth, Hertfordshire, England: Research Studies Press, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Smil, Vaclav. Carbon nitrogen sulfur: Human interference in grand biospheric cycles. New York: Plenum Press, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Acid soil and acid rain. 2nd ed. Taunton, Somerset, England: Research Studies Press, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Ewald, Schnug, ed. Sulphur in agroecosystems. Dordrecht: Kluwer Academic Publishers, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

1949-, Brimblecombe Peter, Lein Alla Yu, and International Council of Scientific Unions. Scientific Committee on Problems of the Environment., eds. Evolution of the global biogeochemical sulphur cycle. Chichester, West Sussex, England: Wiley, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Sulphur cycle"

1

Eriksen, J., M. D. Murphy, and E. Schnug. "The Soil Sulphur Cycle." In Nutrients in Ecosystems, 39–73. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5100-9_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Dämmgen, Ulrich, Kerr Walker, Ludger Grünhage, and Hans-Jürgen Jäger. "The Atmospheric Sulphur Cycle." In Nutrients in Ecosystems, 75–114. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5100-9_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Hell, RÜdiger, and Heinz Rennenberg. "The Plant Sulphur Cycle." In Nutrients in Ecosystems, 135–73. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5100-9_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Haneklaus, S., E. Bloem, and E. Schnug. "The Global Sulphur Cycle and Its Links to Plant Environment." In Sulphur in Plants, 1–28. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0289-8_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kelly, Donovan P. "The Sulphur Cycle: Definitions, Mechanisms and Dynamics." In Ciba Foundation Symposium 72 - Sulphur in Biology, 3–18. Chichester, UK: John Wiley & Sons, Ltd., 2008. http://dx.doi.org/10.1002/9780470720554.ch2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Mudd, S. Harvey. "Diseases of Sulphur Metabolism: Implications for the Methionine-Homocysteine Cycle, and Vitamin Responsiveness." In Ciba Foundation Symposium 72 - Sulphur in Biology, 239–58. Chichester, UK: John Wiley & Sons, Ltd., 2008. http://dx.doi.org/10.1002/9780470720554.ch15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Jones, Graham B. "The Reef Sulphur Cycle: Influence on Climate and Ecosystem Services." In Ethnobiology of Corals and Coral Reefs, 27–57. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23763-3_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Saltelli, A., T. Homma, F. Raes, J. Wilson, and R. Van Dingenen. "Modelling of the Sulphur Cycle. From DMS to Cloud Particles." In Dimethylsulphide: Oceans, Atmosphere and Climate, 355–73. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-1261-3_38.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Strauss, Harald, Victor A. Melezhik, Marlene Reuschel, Anthony E. Fallick, Aivo Lepland, and Dmitry V. Rychanchik. "7.5 Abundant Marine Calcium Sulphates: Radical Change of Seawater Sulphate Reservoir and Sulphur Cycle." In Reading the Archive of Earth’s Oxygenation, 1169–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29670-3_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Barrie, L. A. "Features of the Atmospheric Cycle of Aerosol Trace Elements and Sulphur Dioxide Revealed by Baseline Observations in Canada." In Scientific Application of Baseline Observations of Atmospheric Composition (SABOAC), 137–50. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-3909-7_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Sulphur cycle"

1

Lee, Koen-Woo, Hwan-Doo Kim, Sung-Il Wi, and Jean-Pierre Stalder. "Daesan Combined Cycle Power Plant: Successful Operating Experience on Low Sulphur Waxy Residual Fuel Oil." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0074.

Full text
Abstract:
This paper presents and discusses the successful operating experience and the issues related to burning low sulphur waxy residual (LSWR) fuel oil at the 507 MW IPP Daesan Combined Cycle Power Plant. The power plant was built and is operated by Hyundai Heavy Industries (HHI). It comprises four Siemens-Westinghouse 501D5 engines, each with a heat recovery boiler including supplementary firing and one steam turbine. This plant, commissioned in 1997, is designed to burn LSWR fuel oil. LSWR fuel oil was selected because of the lower fuel cost as compared to LNG and other liquid fuels available in Korea. By adding a combustion improver to the LSWR fuel oil it is possible for HHI to comply with the tight Korean environmental regulations, despite the tendency for heavy smoke and particulate emissions when burning this type of fuel oil. The successful operating experience, availability, reliability and performance achieved in Daesan, as well as the commercial viability (which by far offsets the additional capital expenditure and the additional related O&M costs) demonstrate that LSWR fuel oil firing in heavy duty gas turbines is rewarding. This is especially important in view of the growing disposal problems of residuals at refineries around the world.
APA, Harvard, Vancouver, ISO, and other styles
2

Borraccia, Adriano, Adriaan Roux, Robin Street, Steve Pollitt, Dr Marcus Guzmann, Oliver Neuhaus, Thomas Puetz, and Jolien Pirard. "Oxygen Enrichment in Sulphur Plants to Reduce the Life Cycle Costs of New-Build, Large Gas Plants." In Abu Dhabi International Petroleum Exhibition & Conference. Society of Petroleum Engineers, 2016. http://dx.doi.org/10.2118/183406-ms.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Peraza Lizama, Jose Carlos, Carlos Martin Rubio Atoche, and Alan Garcia Lira. "Production of MgO From Residues of Saline Pools in “Las Coloradas” Yucatan, Mex. Using Thermochemical Energy Storage." In ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/es2011-54264.

Full text
Abstract:
This paper proposes a method of thermochemical-energy storage from magnesium sulfate recovered from salt ponds of sea water. The idea develops from a project originally thought to obtain magnesium oxide from a salt plant in the Yucatan Peninsula, Mexico. The new idea is based on the exploitation of the heat of decomposition of magnesium sulphate. In the traditional literature, closed-loop, reversible reaction is considered, whereas in this work, an open-loop is proposed; that is, sulphur dioxide is separated from the magnesium oxide before cooling down to 700°C; in this way, magnesium oxide is obtained by thermal decomposition, and at the same time, the high heat of decomposition is used to store thermal energy for electricity generation; magnesium oxide, sulfuric acid and hydrogen are co-products of the process if another iodine reaction cycle is considered. This second process is again a modification of an open-loop traditional process, to a closed-loop process where no sulphuric acid is required.
APA, Harvard, Vancouver, ISO, and other styles
4

Haussener, Sophia, Dennis Thomey, Martin Roeb, and Aldo Steinfeld. "Multi-Scale Modelling of a Solar Reactor for the High-Temperature Step of a Sulphur-Iodine-Based Water Splitting Cycle." In ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and M. ASME, 2012. http://dx.doi.org/10.1115/ht2012-58323.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bohn, D., G. H. Dibelius, R. U. Pitt, R. Faatz, G. Cerri, and C. Salvini. "Optimizing a Pressurized Fluidized Bed Combustion Combined Cycle With Gas Turbine Topping Cycle." In ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-390.

Full text
Abstract:
Combined Cycles for the generation of electricity or co-generation of heat and power with Pressurized Fluidized Bed Combustion (PFBC) of coal and a gas turbine topping cycle fired with a fuel suitable for gas turbines have been studied to set up optimum process parameters with respect to net efficiency, emissions including CO2, and keeping in mind the feasibility of the plant components. As a basic approach, natural gas has been considered as a fuel for the topping gas turbine. Net efficiencies up to 50% (LHV) are acheived. For the calculations, a Recursive Equality Constraint Quadratic Programming Method (RECQPM) is applied. The method is semi-implicit, i. e. the equations describing the process are solved using a non-linear equations system solver; the modular structure of the cycle is, however, made up for by programme modules set up for the relevant components/units. With the process layouts studied, the PFBC should be operated at a pressure level to allow for a compact design of the PFBC steam generator and the Hot Gas Clean-Up Unit (HGCU), and to take advantage of the pressure with respect to combustion efficiency, in-bed sulfur retention and NOx-reduction. The overall pressure ratio of the topping gas turbine, e. g. consisting of an LP-compressor plus a free running HP spool, and exhausting to the PFB combustor, should be in the range of 30. Further developments of gas turbine technology with respect to pressure ratio and turbine inlet temperature can be incorporated into the process and will be associated with an increase of overall efficiency. The heat to be extracted from the coal fired PFBC at the typical combustion temperature of 850°C allows for steam generation at conventional live steam and reheat temperatures (and pressures). The incorporation of advanced steam cycle parameters, as actually considered for pulverized coal fired boilers, would again increase the overall net efficiency of the cycle by some 5% with an increase of both the live steam and the reheat temperature from 540°C to 600°C. In contrast to conventional combined cycles with an unfired waste heat boiler for steam generation, the overall efficiency of the PFBC combined cycle with gas turbine topping cycle is only marginally affected by dual pressure steam cycle arrangements, except for very sophisticated and costly designs. To use gas from an integrated coal gasification unit rather than natural gas as a fuel for the topping gas turbine would result in an entirely coal based process. Due to the capability of the PFBC to burn residues of coal gasification and gas purification, this process, compared to pure Integrated Gasification Combined Cycles (IGCC), is less sensitive to the carbon conversion acheived. Even more, the raw gas purification might be simplified, and the process efficiency might be increased as a result of the sulphur removal to be acheived in the PFBC rather than in a raw gas sweetening process. Some preliminary findings for a process with an integrated partial gasification unit are discussed.
APA, Harvard, Vancouver, ISO, and other styles
6

Andrews, Gordon E., Hu Li, and Stephen Wright. "Particulate Mass Emissions From Aircraft: A First Order Approximation Method Based on Experience From Diesel Particulate Mass Emissions Measurement." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59572.

Full text
Abstract:
Estimates of aero engine particulate composition and mass emissions are made over the LTO cycle using the smoke number measurement for carbon, hydrocarbon measurements for unburned fuel, lubricating oil consumption for the particulate lube oil fraction and fuel sulphur level for sulphate and associated water. The method is applied to six aircraft with different engine technologies. Comparison is made with the ICAO FOA method for particle mass and it is argued that the present proposals are an improved approach and are founded in experience in the measurement of diesel particulate mass emissions.
APA, Harvard, Vancouver, ISO, and other styles
7

Campanari, Stefano, Matteo Gazzani, and Matteo C. Romano. "Analysis of Direct Carbon Fuel Cell (DCFC) Based Coal Fired Power Cycles With CO2 Capture." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69778.

Full text
Abstract:
This work presents an analysis of the application of Direct Carbon Fuel Cells (DCFC) to large scale, coal fuelled power cycles. DCFCs are a type of high temperature fuel cell featuring the possibility of being fed directly with coal or other heavy fuels, with high tolerance to impurities and contaminants (e.g. sulphur) contained in the fuel. Different DCFC technologies of this type are developed in laboratories, research centres or new startup companies, although at kW-scale, showing promising results for their possible future application to stationary power generation. This work investigates the potential application of two DCFC categories, both using a “molten anode medium” which can be (i) a mixture of molten carbonates or (ii) a molten metal (liquid tin) flowing at the anode of a fuel cell belonging to the solid oxide electrolyte family. Both technologies can be considered particularly interesting for the possible future application to large scale, coal fuelled power cycles with CO2 capture, since they both have the advantage of oxidizing coal without mixing the oxidized products with nitrogen, thus releasing a high CO2 concentration exhaust gas. After a description of the operating principles of the two DCFCs, it is presented a lumped-volume thermodynamic model which reproduces the DCFC behaviour in terms of energy and material balances, calibrated over available literature data. We consider then two plant layouts, using a hundred-MW scale coal feeding, where the DCFC generates electricity and heat recovered by a bottoming steam cycle, while the exhaust gases are sent to a CO2 compression train, after purification in appropriate cleaning processes. Detailed results are presented in terms of energy and material balances of the proposed cycles, showing how the complete system may surpass 65% LHV electrical efficiency with nearly complete (95%+) CO2 capture, making the system very attractive, although evidencing a number of technologically critical issues.
APA, Harvard, Vancouver, ISO, and other styles
8

Minchener, A. J. "An Overview of Recent Clean Coal Gasification Technology R&D Activities Supported by the European Commission." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-163.

Full text
Abstract:
Gasification combined cycle has the potential to provide a clean, high efficiency, low environmental impact power generation system. A prime fuel for such systems is coal but there is scope in part to utilise renewable energy sources including biomass and waste materials such as sewage sludge or even oil residues. There is considerable scope to improve the performance of the first generation systems of gasification combined cycle plant, both through design changes and through the continued development towards second generation plant. Such improvements offer the prospect of even better efficiency, coal/biomass/waste utilisation flexibility, lower emissions especially of CO2, and lower economic cost of power generation. There have been several major R&D initiatives, supported in part by the European Commission, which have been designed to meet these aims. The approach adopted has been to form multi-partner project teams comprising industry, industrial research organisations and selected universities. The main technical issues that have been considered include co-gasification, e.g. co-feeding, fuel conversion, gas quality, contaminants, component developments, and the integration of hot fuel gas cleaning systems for removal of solid particles, control of sulphur emissions, control of fuel bound nitrogenous species, removal of halides and control of alkali species. The technical R&D activities have been underpinned by several major techno-economic assessment studies. This paper provides an overview of these various activities which either form part of the European Commission JOULE Coal R&D Programme or were supported under an APAS special initiative.
APA, Harvard, Vancouver, ISO, and other styles
9

Rao, J. S., J. Neelima, and G. Srikanth. "A Technoeconomic Comparison of IGCC Power Plants With Cold Gas Cleanup and Hot Gas Cleanup Units Using Indian Coals." In International Joint Power Generation Conference collocated with TurboExpo 2003. ASMEDC, 2003. http://dx.doi.org/10.1115/ijpgc2003-40018.

Full text
Abstract:
Bulk of CO2 emission comes from thermal power generation, which constitutes about 63% of total installed capacity of around 101.6 GWe. The policy makers and power utilities are increasingly favoring the introduction of clean coal technologies, which release less pollutants viz. CO2, NOx and SOx than the conventional thermal plants and have potential to operate at higher efficiencies above 42–44%. Among the clean coal technologies, Integrated Gasification Combined Cycle (IGCC) is being considered the most promising because of higher thermal efficiencies and improved environmental performance. IGCC has the added advantage of removing sulphur pollutants in bed using sorbent as against expensive external post combustion flue gas desulphurisation systems. It is proposed to set up 100MWe-demonstration plant for proving the emission standards and performance prior to commercialization. This plant is based on Frame 6 FA gas turbine designed for low Btu gas firing. The Paper presents the technical parameters and compares the overall project cost of 100MWe IGCC plant for both Cold gas cleanup unit (CGCU) and Hot gas cleanup unit (HGCU), which comprises of Gasification Island, power block, and balance of plant. Being first of kind the project cost is higher and the project cost is likely to get reduced for utility scale of 425 MW IGCC plants in future.
APA, Harvard, Vancouver, ISO, and other styles
10

Ponyavin, Valery, Taha Mohamed, Mohamed Trabia, Yitung Chen, and Anthony E. Hechanova. "Transient Analysis of a Ceramic High Temperature Heat Exchanger and Chemical Decomposer." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42199.

Full text
Abstract:
Ceramics are suitable for use in high temperature applications as well as corrosive environment. These characteristics were the reason behind selection silicone carbide for a high temperature heat exchanger and chemical decomposer, which is a part of the Sulphur-Iodine (SI) thermo-chemical cycle. The heat exchanger is expected to operate in the range of 950°C. The proposed design is manufactured using fused ceramic layers that allow creation of micro-channels with dimensions below one millimeter. A proper design of the heat exchanges requires considering possibilities of failure due to stresses under both steady state and transient conditions. Temperature gradients within the heat exchanger ceramic components induce thermal stresses that dominate other stresses. A three-dimensional computational model is developed to investigate the fluid flow, heat transfer and stresses in the decomposer. Temperature distribution in the solid is imported to finite element software and used with pressure loads for stress analysis. The stress results are used to calculate probability of failure based on Weibull failure criteria. Earlier analysis showed that stress results at steady state operating conditions are satisfactory. The focus of this paper is to consider stresses that are induced during transient scenarios. In particular, the cases of startup and shutdown of the heat exchanger are considered. The paper presents an evaluation of the stresses in these two cases.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Sulphur cycle' for particular source types:
Journal articles Dissertations / Theses Books
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!

To the bibliography