Patent classifications
C10G11/08
Process and apparatus for reacting feed with a fluidized catalyst over a temperature profile
A fluidized catalytic reactor utilizes an ascending temperature profile. The apparatus and process deliver cooler spent catalyst to a first catalyst distributor and a hotter regenerated catalyst to a second catalyst distributor that are spaced apart from each other. The reactant stream first encounters the first stream of catalyst and then encounters the second stream of catalyst. The process and apparatus stage the addition of hot catalyst to the reactant stream. The process and apparatus may be particularly advantageous in an endothermic reaction because the hotter catalyst will encounter reactants that have cooled due to the progression of endothermic reactions.
Catalyst for producing light olefins from C4-C7 hydrocarbons
The present invention relates to a catalyst for producing light olefins from C4-C7 hydrocarbons from catalytic cracking reaction and the production process of light olefins from said catalyst, wherein said catalyst has core-shell structure comprising a zeolite core with mole ratio of silicon to aluminium (Si/Al) between 2 to 250 and layered double hydroxide shell (LDH). The catalyst according to the invention provides high percent conversion of substrate to products and high selectivity to light olefins product.
Catalyst for producing light olefins from C4-C7 hydrocarbons
The present invention relates to a catalyst for producing light olefins from C4-C7 hydrocarbons from catalytic cracking reaction and the production process of light olefins from said catalyst, wherein said catalyst has core-shell structure comprising a zeolite core with mole ratio of silicon to aluminium (Si/Al) between 2 to 250 and layered double hydroxide shell (LDH). The catalyst according to the invention provides high percent conversion of substrate to products and high selectivity to light olefins product.
Catalyst for Producing Light Olefins From C4-C7 Hydrocarbons
The present invention relates to a catalyst for producing light olefins from C4-C7 hydrocarbons from catalytic cracking reaction and the production process of light olefins from said catalyst, wherein said catalyst has core-shell structure comprising a zeolite core with mole ratio of silicon to aluminium (Si/Al) between 2 to 250 and layered double hydroxide shell (LDH). The catalyst according to the invention provides high percent conversion of substrate to products and high selectivity to light olefins product.
Catalyst for Producing Light Olefins From C4-C7 Hydrocarbons
The present invention relates to a catalyst for producing light olefins from C4-C7 hydrocarbons from catalytic cracking reaction and the production process of light olefins from said catalyst, wherein said catalyst has core-shell structure comprising a zeolite core with mole ratio of silicon to aluminium (Si/Al) between 2 to 250 and layered double hydroxide shell (LDH). The catalyst according to the invention provides high percent conversion of substrate to products and high selectivity to light olefins product.
FLASH CHEMICAL IONIZING PYROLYSIS OF HYDROCARBONS
Flash chemical ionizing pyrolysis (FCIP) process. The FCIP includes mixing an iron source material, an alkali or alkaline earth metal chloride source material, an aqueous phase, and an oil component to form a feed emulsion; introducing the feed emulsion into an FCIP reactor at a temperature greater than about 400 C. up to about 600 C., a pressure from 10 to 50 psia and a residence time of 0.1 to 10 seconds, to form an FCIP effluent; and condensing a liquid ionizing pyrolyzate (LIP) from the effluent. The feed emulsion can be free of added solids other than the iron source material, the alkali or alkaline earth metal chloride source material, and any sediment in the oil component.
FLASH CHEMICAL IONIZING PYROLYSIS OF HYDROCARBONS
Flash chemical ionizing pyrolysis (FCIP) process. The FCIP includes mixing an iron source material, an alkali or alkaline earth metal chloride source material, an aqueous phase, and an oil component to form a feed emulsion; introducing the feed emulsion into an FCIP reactor at a temperature greater than about 400 C. up to about 600 C., a pressure from 10 to 50 psia and a residence time of 0.1 to 10 seconds, to form an FCIP effluent; and condensing a liquid ionizing pyrolyzate (LIP) from the effluent. The feed emulsion can be free of added solids other than the iron source material, the alkali or alkaline earth metal chloride source material, and any sediment in the oil component.
FLASH CHEMICAL IONIZING PYROLYSIS OF HYDROCARBONS
Flash chemical ionizing pyrolysis (FCIP) at 450 C.-600 C. forms liquid ionizing pyrolyzate (LIP) that can be blended in oil feedstock for thermal processes to promote conversion of heavier hydrocarbons to reduce resid/coke yields and/or increase yields of liquid hydrocarbons and isomerates. A front-end refinery process modifies crude oil with LIP for distillation to reduce resid/coke yields and/or increase liquid oil yields. A downstream process modifies a heavy oil stream such as resid with LIP and the LIP-modified stream can be thermally processed to reduce resid/coke yields and/or increase liquid oil yields. FCIP of the LIP blends also improves quality and/or yields of the liquid pyrolyzate product. Finely divided FCIP solids can contain FeCl.sub.3 supported on NaCl-treated calcium bentonite. A process for preparing the FCIP solids treats iron with HCl and HNO.sub.3 to form acidified FeCl.sub.3 of limited solubility, loads the FeCl.sub.3 on NaCl-treated bentonite, and heat-treats the material at 400 C.-425 C.
FLASH CHEMICAL IONIZING PYROLYSIS OF HYDROCARBONS
Flash chemical ionizing pyrolysis (FCIP) at 450 C.-600 C. forms liquid ionizing pyrolyzate (LIP) that can be blended in oil feedstock for thermal processes to promote conversion of heavier hydrocarbons to reduce resid/coke yields and/or increase yields of liquid hydrocarbons and isomerates. A front-end refinery process modifies crude oil with LIP for distillation to reduce resid/coke yields and/or increase liquid oil yields. A downstream process modifies a heavy oil stream such as resid with LIP and the LIP-modified stream can be thermally processed to reduce resid/coke yields and/or increase liquid oil yields. FCIP of the LIP blends also improves quality and/or yields of the liquid pyrolyzate product. Finely divided FCIP solids can contain FeCl.sub.3 supported on NaCl-treated calcium bentonite. A process for preparing the FCIP solids treats iron with HCl and HNO.sub.3 to form acidified FeCl.sub.3 of limited solubility, loads the FeCl.sub.3 on NaCl-treated bentonite, and heat-treats the material at 400 C.-425 C.
EMULSION AND SYSTEM FOR CATALYTIC PYROLYSIS
An emulsion and system for catalytic pyrolysis can include a mixture of 100 parts by weight heavy oil, 5 to 100 parts by weight water, and 1 to 20 parts by weight solid catalyst particulates, which can include an oxide or acid addition salt of a Group 3-16 metal on a mineral support, such as ferric chloride on bentonite. Also, a pyrolysis system can include a charge of the emulsion, a transfer line to supply the emulsion to a pyrolysis chamber, a combustion gas source to supply a combustion gas to heat the pyrolysis chamber, a control system to maintain the pyrolysis chamber at a temperature, pressure and residence time to form a pyrolyzate vapor phase, and a vapor line to receive the pyrolyzate vapor phase from the pyrolysis chamber.