Dissertations / Theses on the topic 'Oil storage tanks'
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Kamyab, Hossain. "Effects of foundation settlement on oil storage tanks." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334133.
Full textLee, Yu Kwan Gloria. "A critical analysis of public engagement in Hong Kong case study on the siting of Permanent Aviation Fuel Facility (PAFF) in Tuen Mun Area 38 /." access abstract and table of contents access full-text, 2008. http://libweb.cityu.edu.hk/cgi-bin/ezdb/dissert.pl?ma-sa-b22723237a.pdf.
Full text"A dissertation undertaken in partial fulfillment of the requirements of the Master of Arts in Public Policy & Management, City University of Hong Kong." Title from PDF t.p. (viewed on Sept. 24, 2008) Includes bibliographical references (p. 41-43)
Mutallimov, Turan. "Wind load effect on storage tanks in Azerbaijan." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23576/.
Full textRodriguez, Hernando Efrain Leon. "Automated NDT Robotic System for Storage Oil Tanks and Nuclear Pressure Vessel." Thesis, London South Bank University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.506710.
Full textRobinson, Nigel James. "The wind induced vibration and fatigue of floating roofs on oil storage tanks." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335158.
Full textHwili, Abdulgader Omar Mohamed. "Dual-modality multi-interface level sensors for monitoring oil separator and other storage tanks." Thesis, University of Manchester, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511994.
Full textBorgan, Nawal Sunna'. "Microbial regrowth of water supplies in Amman distribution system and house-hold water storage tanks." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245733.
Full textSantucci, Jay N. "Hydrogeologic conditions controlling contaminant migration from storage tanks overlying Mississippi River Alluvium a case study /." Master's thesis, Mississippi State : Mississippi State University, 2006. http://library.msstate.edu/etd/show.asp?etd=etd-07072006-161425.
Full textZhu, Ling. "Compulsory Insurance and Compensation for Bunker Oil Pollution Damage /." Berlin : Springer Berlin, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2853667&prov=M&dok_var=1&dok_ext=htm.
Full textNevárez-Moorillón, Guadalupe Virginia. "Biodegradation of Certain Petroleum Product Contaminants in Soil and Water By Selected Bacteria." Thesis, University of North Texas, 1995. https://digital.library.unt.edu/ark:/67531/metadc332474/.
Full textSancet, Aitor. "Study of heat transfer and flow pattern in a multiphase fuel oil circular tank." Thesis, University of Gävle, University of Gävle, Department of Technology and Built Environment, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-4926.
Full textThis is a thesis work proposed by Sweco System in order to carry out a study related to the heating system of a circular fuel oil storage tank or cistern. The study tank is a 23m diameter and 18m height with a storage capacity of around 7500m3 of Eo5 heavy fuel oil. The content ought to be at a minimum storage temperature of 50ºC so that the fuel oil is fluid enough and operation labors can be adequately performed. In fact, these types of heavy fuel oils have fairly high viscosities at lower temperatures and the heating and pumping system can be compromised at temperatures below the pour point. For this purpose a heating system is installed to maintain the fluid warm. So far the system was operated by an oil burner but there are plans to its replacement by a District Heating-heat exchanger combo. Thereby, tank heating needs, flow and thermal patterns and heat transfer within it are principally studied.
Tank boundaries are studied and their thermal resistances are calculated in order to dimension heat supply capacity. The study implies Finite Elements (Comsol Multiphysics) and Finite Volume (Fluent) analysis to work out some stationary heat transfer by conduction cases on some parts and thermal bridges present on these boundaries. Afterwards both cooling and heating processes of the fuel oil are studied using several strategies: basic models and Computational Fluid Dynamics (CFD). CFD work with Fluent is focused on optimizing inlet and outlet topologies. Understanding the cooling process is sought as well; Fluent CFD transient models are simulated in this way as well. Additionally the effect of filling levels is taken into account leading to a multiphase (fuel oil and air) flow cases where especially heating coupling of both phases is analyzed.
Results show that maximum heat supply needs are around 80kW when the tank temperature is around 60ºC and 70kW when it is around 50ºC. Expectedly the main characteristic of the flow turns out to be the buoyancy driven convective pattern. K-ε turbulence viscous models are applied to both heating and cooling processes showing thermal stratification, especially at the bottom of the tank. Hotter fluid above follows very complex flow patterns. During the heating processes models used predict fairly well mixed and homogenous temperature distribution regardless small stratification at the bottom of the tank. In this way no concrete inlet-outlet configuration shows clear advantages over the rest. Due to the insulation of the tank, low thermal conductivity of the fluid and vast amount of mass present in the tank, the cooling process is slow (fluid average temperature drops around 5.7 ºC from 60ºC in 15 days when the tank is full and ambient temperature is considered to be at -20ºC) and lies somewhere in the middle between the solid rigid and perfect mixture cooling processes. However, due to stratification some parts of the fluid reach minimum admissible temperatures much faster than average temperature does. On the other hand, as expected, air phase acts as an additional thermal resistance; anyhow the cooling process is still faster for lower filling levels than the full one.
El presente proyecto fue propuesto por Sweco Systems para llevar a cabo un estudio relacionado con el sistema de calefacción de una cisterna o tanque de almacenamiento de fuel oil circular. Dicho tanque tiene 23 m de diámetro y 18 m de altura con una capacidad de almacenamiento de alrededor de 7500 m3 de Eo5 fuel oil pesado. El contenido mantenerse a una temperatura mínima de 50 ºC de manera que el fuel oil es suficientemente fluido para que las labores de operación puedan ser ejecutadas adecuadamente. De hecho, estos tipos de fuel oil pesado tienen altas viscosidades a bajas temperaturas y, por tanto, tanto los sistemas de calefacción y como el de bombeo pueden verse comprometidosr a temperaturas por debajo del pour point. Con este fin un sistema de calefacción es instalado para mantener el fluido suficientemente caliente. Hasta el momento, el sistema era operado por un quemador de fuel, sin embargo, hay planes que éste sea sustituido por un combo intercambiador de calor-District Heating. Por lo tanto, principalmente son estudiadas las necesidades de calefacción así como los flujos térmicos y fluidos.
Se estudian las fronteras del tanque, y sus respectivas resistencias térmicas son calculadas con el fin de dimensionar la capacidad necesaria de suministro de calor. El estudio implica Elementos Finitos (Comsol Multiphysics) y Volúmenes Finitos (Fluent) para elaborar análisis estacionarios de transferencia de calor por conducción en algunos casos. Existen puentes térmicos en las paredes y su importancia es también anallizada. Posteriormente se estudian tanto los procesos de calentamiento y enfriamiento del fuel oil utilizando diversas estrategias: modelos básicos y Dinámica de Fluidos Computacional (CFD). El trabajo con CFD se centra en la optimización de topologías de entradas y salidas del sistema. También es solicitado entender el proceso de enfriamiento; En este sentido, se simulan modelos CFD transitorios de Fluent. Además, el efecto de los niveles de llenado se tiene en cuenta dando lugar a estudios de flujo multifase (fuel oil y aire), haciendo hincapié en el análisis de acoplamiento de transferencia de calor entre las dos fases.
Los resultados muestran que las necesidades de calefacción máximas son de alrededor de 80kW cuando la temperatura del tanque es de alrededor de 60 º C y 70kW cuando está alrededor de 50 ºC. Como era de esperar, la principal característica de este tipo de flujos es la convección natural resultante de las fuerzas de flotabilidad. Se aplican modelos turbulentos k-ε a los procesos de calentamiento y enfriamiento, mostrando estratificación térmica, sobre todo en la parte inferior de la cisterna. El líquido más caliente que se sitúa encima muestra complejos patrones de flujo. Durante los procesos de calentamiento, los modelos utilizados predicen un buen mezclado y distribución homogénea de la temperatura independientemente de esta pequeña estratificación en la parte inferior de la cisterna. De esta manera, ninguna concreta configuración de entradas-salidas simuladas muestra claras ventajas sobre el resto. Debido al aislamiento de la cisterna, la baja conductividad térmica del fluido y la gran cantidad de masa presente en el tanque el proceso de enfriamiento es lento (la temperatura media del fluido desciende 5.7 º C desde 60 º C en 15 días cuando el tanque está lleno y la temperatura ambiente es de -20 º C) y se encuentra en algún lugar en medio de los procesos de enfriamiento del sólido rígido y perfecta mezcla. Sin embargo, debido a la estratificación, algunas partes el líquido alcanzan la temperatura mínima admisible mucho más rápido que la media de temperatura. Por otra parte, como se esperaba, la fase de aire actúa como una resistencia térmica adicional, de todos modos, el proceso de enfriamiento es aún más rápido para niveles de llenado más bajos que el lleno.
Bednář, František. "Analýza možností akumulační tepelné elektrárny v podmínkách ČR." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231650.
Full textChien, Lih-Lan, and 簡麗蘭. "The application of CSP in oil storage tanks allocation problem." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/63297723803639279012.
Full text國立高雄第一科技大學
資訊管理所
92
This study developed a decision support system to assist the dispatch tank’s operation of a refinery environment.The Tank allocation involves the import oil unloading from port, transfer to storage tanks and charges to plant unit. The tanks play an important part in the refinery production. A variety of crude oil holds in store for refining productions. The study is concerning which of tank allocation to port and plant activities, in order to satisfy the activities constraints while minimizing the total operation cost and the maximal loading amount and reduced plant shortage for production and taking storage capacities into account and increased the effective throughput of an existing facility. This study proposed a system development framework that is based on Constraint Satisfaction Problem in oil industry, which has provided the dispatcher to for making decision support so that the arrangement deal with the change of environment quickly. Using Constraint-Based Reasoning for solving technique and Backtracking with an arc consistency algorithm form the basis of the search algorithm for applying constraint propagation to reduce search space. Strategies of decomposed processes and variable and value ordering played an important role in solution efficiency. We conducted experiments with two solution of crude oil tank alloction problem that the Classic method of man-made experience and the CSP method were with objection function of minimize total operation cost to compare their results.
Chang, W. L., and 張文龍. "Fire Simulations of The Safety Distance Between The Oil Storage Tanks." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/50296085759008222997.
Full text元智大學
機械工程學系
92
There is must be a distance between the oil storage tanks. But which is the best. In this work we will use the FDS （Fire Dynamics Simulator）to simulate the fire of the oil storage tanks and consider the effect of heat transfer to get the best of the safety distance . Fire Dynamics Simulator (FDS) is a computational fluid dynamics (CFD) model of fire-driven fluid flow. The software described in this document solves numerically a form of the Navier-Stokes equations appropriate for low-speed, thermally-driven flow with an emphasis on smoke and heat transport from fires.
Santos, Maria José Abrantes dos. "A influência da utilização de gás inerte na estabilidade oxidativa dos azeites virgens nos depósitos de armazenamento." Master's thesis, 2009. http://hdl.handle.net/10400.5/1117.
Full textThe aim of this work was to evaluate the stability of olive oil during six months of storage in stainless steel tanks (similar to those used in the mills). For this, six oil mill tanks were used, three with a normal atmosphere and three more with a modified atmosphere, with nitrogen, since the olive oil easily reacts with oxygen and suffers oxidative deterioration. The purpose was to determinate if olive oil stored in tanks with a non reactive atmosphere maintains its initial characteristics for a longer period of time. A Spanish variety was selected, Arbequina, that presents lower oxidation stability, relative to other olive oil varieties. Every month, different chemical analyses were performed: acidity, peroxide, index, spectrophotometry, tocopherols, polyphenols, oxidative stability and triacylglycerols oxidation. The olive oil stored with a normal atmosphere showed a slightly higher oxidative deterioration when compared with the olive oil stored in the tanks with a modified atmosphere, but no significant differences were found between the two different kinds of atmospheres except in triacylglycerols oxidation. In the sensorial analysis the oil mill tanks with a non reactive atmosphere presented a greater intensity in the “fruity”, “spicy” and “sweet” attributes, and also had a better final classification
Pfotenhauer, Torin. "An investigation into factors increasing contamination risk posed by fuel storage facilities and concomitant methods to mitigate these risks." Thesis, 2011. http://hdl.handle.net/10413/9600.
Full textThesis (M.Sc.Eng.)-University of KwaZulu-Natal, Durban, 2011.
江學文. "Nonlinear Analysis of Sloshing in Oil Storage Tank." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/76702396825549284087.
Full text國立中山大學
海洋環境工程研究所
85
In the present study,a two dimensional rectangular tank with rigid wall is used as the example for presenting the concepts of fully nonlinear and complete dimensional analysis. The container or floating-oil-storage-tank is subjected to simultaneous action of horizontal and vertical seismic accelerations or acceleration induced by water wave. The fluid is assumed to be viscid and incompressible. The Navier-Stokes equations as well as the fully nonlinear kinematic and dynamic free surface boundary conditions are used in the analysis. The Crank-Nicolson finite difference approximation is used to evaluate the velocity field as well as the surface profile of the sloshing fluid. The Gauss-Seidel point overrelaxation iteration technique is used to evaluate the pressure field. The nonlinear effect on hydrodynamic force on tank is studied.
HSIEH, YUN-SHAN, and 謝昀珊. "Assessed Procedure of Seismic Capacity on Oil Storage Tank and Underground Oil Pipeline." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/20399688153694750996.
Full text國立中央大學
土木工程學系
104
Taiwan is located along the circum-Pacific seismic zone where the earthquake happens frequently, structures will be threatened at any time. Therefore, the oil storage tanks and underground oil pipeline in the life cycle, in addition to the material by aging and long-term effects of atmospheric corrosion effects, often due to short-term load invasion earthquakes or typhoons and other natural disasters, which may result in reduced strength capacity. In addition, due to increased seismic hazard degree of oil storage tanks and underground oil pipeline and increased demand for seismic, Therefore, to meet the seismic design of the standards for the existing oil storage tanks and underground oil pipeline and to achieve the purpose of life extension, and seismic capacity assessment should be done to confirm the safety of oil storage tanks. This study focused on seismic capacity of existing storage tanks of oil to establish a simple and a viable seismic assessment procedures, it is based on seismic demand of the newest building seismic design codes, and the program is divided into three stages. First is the preliminary assessment, according to tank and pipeline of the actual situation and the most recent test data in order to assess the project to form rating. The second stage is a detailed assessment (simple model), tank is reference to API650 to check the overall stability and stress by static and dynamic analysis, pipeline is reference to ASME B31.4 to check the stress of underground oil pipeline by static analysis. The third stage is a detailed assessment (complete model), to establish a complete model to the finite element analysis and inspected in accordance with the requirements of seismic design. This study provides a computing programs of detailed assessment in accordance with the seismic assessment procedure (simplified model) , and hoping this assessment process to make the safety of oil storage tanks and underground oil pipelines can be fast and efficient. It can provide structural reinforcement of reference. This paper also collected seismic reinforcement methods of oil tank, which provides reference. Keywords: oil storage tank、underground oil pipeline、seismic assessment、seismic reinforcement
SU, YI-FU, and 蘇益富. "Investigation of microbial community in oil sludge from a biodiesel storage tank." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/nqy56k.
Full text逢甲大學
環境工程與科學學系
105
The fuel is susceptible to microbial contamination during transportation and storage. When the fuel is contaminated by microorganisms at the oil-water interface in the oil storage tank, biofilm is formed, or the oil sludge is accumulated. The biofilm or oil sludge will cause problems for the operation equipment such as blockage of filter or inaccuracy of meters; hence, the control of microorganisms in the oil storage tank is the main task of fuel microbiology. Two strains of gram negative rods with different colonial morphologies were isolated from the oil-water interface, during the investigation of the effect of water on the microbial growth in the oil storage tank. Both strains were identified with molecular biotechnology as Burkholderia cenocepacia. They were cultivated in media containing organic nitrogen (TSB and SDB), inorganic nitrogen (Cz), or oligotrophic medium (R2B), respectively. Their growth results showed TSB> R2B> SDB> Cz. The growth in R2B and TSB in terms of turbidity was similar, this result could explain why the isolates exist in the oil-water interface. The optimal conditions for the extraction of whole genomic DNA in the oil sludge had been investigated prior to revealing the bacterial community by the PCR-DGGE, that is, the effect of oil sludge pretreatment and DNA extraction kit on the whole genomic DNA extraction. The main purpose of pretreatment with mixing and centrifugation processes was to concentrate the microorganisms in the oil sludge and to remove the grease. Whether the oil sludge was pre-treated or not has no effect on the DNA purity, the blood and tissue extraction kit had the highest DNA purity among those three extraction kits tested. When the extracted DNA was amplified by PCR, higher PCR product was obtained by using the Supermix reaction composition (Taq DNA Polymerase Master Mix Red). There were five major bands on both the pretreated and non-pretreated oil sludge samples, and the samples extracted through blood and tissue extraction kit had a very faint band which might indicate Micrococcus luteus existence in the oil sludge.
Liu, Yu Yao, and 劉宇堯. "The Development of a Virtual Reality Oil Storage Tank Maintenance Assistance System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/36720606969760641655.
Full text國立高雄應用科技大學
機械與精密工程研究所
97
The virtual reality technology has become more and more popular in industrial, medical, digital learning, education and training, and entertaining application recently resulted from the fast development of computing technology and computer graphics. The petrol-chemistry industry of vigorous development has contributed the prosperity of economy greatly in last two decades because oil resources are always major issues in world economy. Oil storage tank is one of the inevitable equipment in the transfer and the regulating process for either crude oil, middle fuel oils, or the refined oil product's transportation. Therefore, requests of storage tank's maintenance issues such as time, quality and security are paid great attention. However, the construction and maintenance of the device depend heavily on experience-based knowledge and advanced expertise. Therefore this study focuses on the development of a virtual 3D oil storage tank education and training system. The developed system uses the Visual Basic 6.0 to design the Human Computer Interface and EON studio software was used to create an hybrid interactive 3D virtual scene. The developed system includes database, animation, virtual 3D environment to ease maintenance so that even a novice of construction supervisory can use efficiently. The developed system is expected to reduce occupational accident in site operation.
Teng, Piao-yang, and 鄧表揚. "Deformation Analysis of Huge Oil Storage Tank Using Three Dimension Laser Scanning Technology." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/81982346151976088914.
Full text逢甲大學
土地管理所
95
This research uses three dimensional（3D） laser scanning technique and it focuses on a complete scanning for outer cover of oil storage tank . In the traditional examination way, it can only collect the sample in a specific direction （or spot）of the tank shell, and uses the partial spot achievement to represent the whole deformation analysis. This is unable to meet the standard which America Petroleum Association（API）defers to the huge oil storage tank safety maintenance and the outward appearance examination. However, the 3D laser scanning technique uses more point cloud data to perform the result in contrast to the traditional way. The analysis also defers to the API standard which can judge the deformation from vertical and horizontal directions. This research about the distortion condition of the fuel storage tank divides into two different parts- integrity and partial parts. With the whole deformation tendency, the displacement of oil tank in the vertical direction meets the API standard（verticality should be less than 1%）. However, the dis- placement degree in the horizontal direction is mostly surpasses API standard. （circularity should less than 95.25mm）. Under the same circumstances but with the different results, it may be caused by the seriously deformation in horizon- tal direction or the calculation of circularity. Also the outer cover of oil tank design structural emphasizes more on the circularity’s changing situation. Therefore, this research recalculates the point cloud data of the horizontal direction and plotting the radius length fluctuation of fuel storage tank, the center of a circle grid displacement graph then observe the changing situation. The result of this research that meet API standard can only include the verticality and the circularity. The analysis of increase or decrease of the radius, the displacement of circle center and the 3D scanning cover are rarely seen in Taiwan. There is no same or similar way to process the analysis either. Therefore, this research not only can provide a new survey solution and the analyse mode, but it can also be an important reference for future huge oil storage tank checking and surveying regulation purpose.
Weng, Chaur-Chang, and 翁朝章. "Engineering Construction Management- A Case Study on C Company's Oil Storage Tank Engineering." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/32047588446337368012.
Full text國立臺灣科技大學
工業管理系
100
The target of engineering management is to make engineering work progressing smoothly and achieve the expected quality. Good or bad engineering management not only affects the cost, progress, quality, and safety of engineering but also implicates the cost of maintenance and convenience of operation in future. Each stage of engineering life cycle has its respective importance and influences mutually. The planning quality affects design quality, and the design quality affects construction quality. Therefore, we have to manage not only the construction stage of engineering but also the planning and design stages of engineering. This study researches C Company's aboveground oil storage tank engineering. By searching and gathering the data of references, related engineering regulations and C Company's engineering experiences, draws up the necessary management items of planning, design and construction stages of engineering, and then makes expert questionnaire and interviews, finally, analyzes and organizes the results of interviews to construct an adequate engineering management model which including planning, design and construction stages of engineering.The research conclusion on the necessary management items in various stages of engineering are: 29 items in the planning stage, 14 items in the design stage, 15 items in the construction stage (supervisory management phase) and 36 items in the construction stage (contractor management phase). This study can provide the engineering personnel to acquire the engineering experiences quickly and to take control of the necessary management items of the planning, design and construction stages of engineering.To apply the engineering management model constructed by this study can reduce engineering costs, improve engineering quality, shorten the construction period of engineering and enhance engineering safety.
Gill and 曹秀婷. "Estimation of VOCs emissions from inter-connected fixed roof tank at oil storage and pumping station." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/74571485480530401617.
Full text國立高雄海洋科技大學
海洋環境工程研究所
98
Environmental Protection Administration Executive Yuan (EPA) has estimated volatility organic compounds emission by using the average emission data from every oil-refining industry since December 27th, 2006. Government uses the result to levy Air Pollution Control Fee. However, this estimation method will not cover the overall processing condition. Therefore, this research chooses two oil storage tanks that equip with timber connected fixed-roof tanks in Kaohsiung area and uses NIEA A715.13B Method to analyze volatility organic compounds in tanks area. It also uses air quality monitor truck to measure leaking quantity during oil loading period. After all measurements, we estimate the amount of volatility organic compounds base on the recommended calculation method in USEPA AP-42 and compare its result with EPA calculation. The result has shown, (1)both storage stations has higher concentration of total hydrocarbons (THCs) when import oil into tanks. It showed that gas escapes during loading. (2)Through GC/MS analysis, the compounds it finds are all related to storage oil(such as 2-Methylpentane、cyclohexane, 2-Methoxy-2-Methyl-Propane(MTBE), etc), and these compounds are all from storage tanks. (3)the average concentration of total volatility organic compounds in Dashe storage station is only 17.3ppb, which is much lower than the usual concentration in Kaohsiung. It means that this kind of storage method has low leaking rate. Renwu storage station is the only station that senses 74.2ppb high concentration, and it happens because of leaking gas. (4)the calculation base on USEPA AP-42 result is much lower than EPA calculation result. For instance, base on EPA calculation by using the data in Renwu monitor station, it is three order higher than the calculation base on USEPA AP-42. Therefore, if safety valves on the top of storage tank can be sealed with set pressure and deploy cushion and storage by using fixed-roof tanks connection system during oil loading, then this kind of storage system will not have VOC leaking problem during regular operation process. This type of storage system can be a reference to large storage tank’s air pollution control system. In conclusion, EPA calculation method cannot be apply to both underground and soil-covered fixed fuel tanks, especially for the storage tanks that have connection system design. It is recommended that the cost of Air Pollution Control Fee will be the different in the future.
Chang, Chia-Chin, and 張加欽. "The beginning of boundary research of hazardous greasy dirt from the bottom-tank in the cleaning produces of crude oil storage tank." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/66408114177068465565.
Full text國立屏東科技大學
環境工程與科學系所
96
The Contents of Abstract in this Thesis: Based on the Standards for Defining Hazardous Waste promulgated by Environmental Protection Administration, Executive Yuan, R.O.C.(Taiwan). Announced the Process-derived Wastes of “Crude oil tank bottom sludge in the petroleum refining industry” is Benzene. The inspection and disposition of crude oil tank should been enforced by every decades according to The Petroleum Administration Law, and improvements of crude oil tank exceptional malfunction, and the cost control of tank storage and transport, and so on nowadays in Taiwan area.Models as the disposition of crude oil tank in refinery of Formosa Petrochemical Corporation in Taiwan area as example, each 1mm thickness will accrue 6.6 tons bottom sludge in quantity approximately, in a internal diameter 86.46m crude oil tank. It will accrue 1,182 KL bottom sludge, in every each crude oil tank as 130,000 KL in average capacity after using for 5 years. In present situation, we using centrifugal force of rotating mobile equipment to decreases the volume of bottom sludge in primarily. The autoptic observation in a processing of three-phase volume decreasing, the sludge cake moisture content is 24.6 ± 10.0% before, and its decreasing to 12.0 ± 3.78% after the processing as 51.2% of moisture content decreasing approximately. And the greasy content is 64.5 ± 19.6% before, and its decreasing to 20.8 ± 5.05% after the processing as 67.8% of greasy content decreasing approximately. Therefore the research is an observation of crude oil recycling, wastewater disposition, and bottom sludge in and after the processing of three-phase volume decreasing.