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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 39 for “"catalytic cracking"”.
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Optimal control of fluid catalytic cracking processes
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1967.
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Catalytic Cracking Of Hydrocarbons With Novel Metal Traps
… study, the pulse technique with a fixed bed microcatalytic unit has been proven to be very adequate for the evaluation of cracking catalyst. The specific technique adopted do not allow coke profiles to develop in the catalyst bed with particle fluidization in between injections.;A kinetic model …
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Modeling and optimization of a two-stage regenerator fluid catalytic cracking unit
In Petroleum refining, the Fluid Catalytic Cracking Unit (FCCU) is the critical stage in the processing of heavy hydrocarbon oils into more valuable gasoline and lighter products. In the FCCU process, the catalyst becomes deactivated in the reactor by heavy carbon deposits called coke. Catalyst …
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Catalytic cracking of n-alkanes and n-alkylbenzenes over H-ZSM-5 zeolite
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1993.
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Kinetic modelling simulation and optimal operation of fluid catalytic cracking of crude oil: Hydrodynamic investigation of riser gas phase compressibility factor, kinetic parameter estimation strategy and optimal yields of propylene, diesel and gasoline in fluid catalytic cracking unit
The Fluidized Catalytic Cracking (FCC) is known for its ability to convert refinery wastes into useful fuels such as gasoline, diesel and some lighter products such as ethylene and propylene, which are major building blocks for the polyethylene and polypropylene production. It is the most important …
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Selective removal of NOx from catalytic cracking regenerator effluent using wet scrubbing with aqueous sodium chlorite solutions
… the flue gas from the regenerator in the fluid catalytic cracking (FCC) unit represents a key source of NOx, SOx, particulate, and CO emissions. Wet scrubbing systems have been used with great success to control particulate and SOx emissions from typical FCC regenerator flue gas. Development of …
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The effect of feed rate and cracking time on carbon formation during the catalytic cracking of petroleum hydrocarbons
The process of catalytic cracking of petroleum hydrocarbons invariably produces a carbonaceous deposit on the surface of the solid catalyst which serves to reduce the activity of the catalyst. This investigation was undertaken to determine the effect of the feed rate and the length of the cracking …
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Predictive Modeling of Large-Scale Integrated Refinery Reaction and Fractionation Systems from Plant Data: Fluid Catalytic Cracking (FCC) and Continuous Catalyst Regeneration (CCR) Catalytic Reforming Processes
… and Fractionation Systems from Plant Data: Fluid Catalytic Cracking (FCC) Process with Planning Applications: This work presents the methodology to develop, validate and apply a predictive model for an integrated fluid catalytic cracking (FCC) process. We demonstrate the methodology by using data …
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Investigation of Recyclable and Renewable Crude oil from Biomass and Plastics
… and sent to BASF Corporation in Iselin, NJ for catalytic upgrading potential. In this study, the feedstock ranged from virgin plastic resins (LDPE, HDPE, PS, PP), recycled rubber from tires to poplar wood chips. It was found that, increasing the temperature from 500 ∘C to 600 ∘C for LDPE and …
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Development of Heterogeneous Catalysts for Upgrading Biomass Pyrolysis Bio-Oils into Advanced Biofuels
… that are derived from biomass pyrolysis. Catalytic cracking and hydrodeoxygenation (HDO) are two most promising bio-oil upgrading techniques for biofuel production. Heterogeneous catalysts are essential for upgrading bio-oil into hydrocarbon biofuel. Although some progresses have been …
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A study of some factors affecting the efficiency of cracking catalysts
The superiority as cracking catalysts of synthetic alumino-silicates to natural alumino-silicates has become evident in the last few years of the development of catalytic cracking. Unpublished results in this laboratory have confirmed this fact. The purpose of this investigation was to learn …
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Biofuels production from hydrotreating of vegetable oil using supported noble metals, and transition metal carbide and nitride
… metal carbide/ nitride, and evaluate their hydrocracking activities and selectivities by using soybean oil as the feedstock. For comparison study, catalytic cracking of soybean oil over a commercialized ZSM-5 was investigated. However, steady state could not be reached because significant amounts …
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Feature extraction and knowledge discovery in process operation analysis
… collected from a dynamic simulator of a refinery catalytic cracking process. Methods for pre-processing dynamic transient signals for feature extraction, dimension reduction and noise removal are investigated and a new method is developed which makes use of wavelet transform to determine the …
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Gain Conditioning for Linear Model Predictive Control
… I use industrial case studies based on fluidized catalytic cracking models.
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The chemical vapour deposition of Tetraethoxysilane on Zeolite ZSM-5
… of the external surface is followed with the catalytic cracking of 1,3,5-triisopropylbenzene (1,3,5-TiPB) which is too bulky to enter the micro-pore structure of ZSM-5. The disproportination of toluene (TDP) is employed to monitor changes of the internal activity and alterations in the shape …
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Gas-solid chromatographic studies of two well-known catalysts
… of using a gas chromatograph to study catalytic reactions. Various methods have been proposed in the literature and it was decided to investigate various possible systems. Two catalysts were chosen for study. The dehydration of alcohols over alumina catalysts has been extensively …
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Modelling, simulation and multi-objective optimization of industrial hydrocrackers
Hydrocracking is a catalytic cracking process for conversion of complex feedstock like heavy vacuum gas oils to valuable middle distillates in hydrogen-rich atmosphere at elevated temperature and pressure. Developments in catalyst and reactor design influence the design and operation of the …
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Advancing Industrial Decarbonization: Evaluating the State of Organic Membrane Technology for Class-Based Hydrocarbon Separation
… separations executed following a fluid catalytic cracking (FCC) operating unit. First, the findings highlight that non-polymer based membrane materials offer improved durability and performance. Second, preferential separations for liquid organic membrane applications involve feed …
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Fractional Catalytic Pyrolysis Technology for the Production of Upgraded Bio-oil using FCC Catalyst
Catalytic pyrolysis technology is one of the thermochemical platforms used to produce high quality bio-oil and chemicals from biomass feedstocks. In the catalytic pyrolysis process, the biomass is rapidly heated under inert atmosphere in the presence of an acid catalyst or zeolite to promote …
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Supramolecular templating of mesoporous zirconia-based nanocomposite catalysts
… industry, including paraffin isomerization, catalytic cracking, and alkylation. The environmental problem associated with the refining of hydrocarbons stems from the corrosive catalysts relied upon by many acid catalytic processes. These catalysts are environmentally dangerous, toxic, hard to …
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