US2012043195A1PendingUtilityA1

Process for Regenerating Coked Particles

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Assignee: CORMA CANOS AVELINOPriority: Apr 20, 2009Filed: Apr 20, 2009Published: Feb 23, 2012
Est. expiryApr 20, 2029(~2.8 yrs left)· nominal 20-yr term from priority
Inventors:Avelino Corma CanosDouglas N. RundellLaurent Louis SauvanaudGeorge Yaluris
C10G 2400/08C10G 11/182C10G 2400/04C10G 2400/02C10G 2400/28C10G 2300/708C10G 2300/1033C10G 2300/807C10G 11/05C10G 2300/4093
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Claims

Abstract

A process for regenerating coked particles, which process comprises contacting a hydrocarbon feedstock with solid particles in a reaction zone to produce coked particles, which coked particles are transferred to a regeneration zone in which they are contacted with steam to produce hydrogen and at least one or more oxides of carbon, wherein the solid particles comprise one or more of the following components: (i) an aluminosilicate zeolite comprising one or more of Mn, Ti and Zn; (ii) a Ce-containing aluminosilicate zeolite with a Ce loading of at least 0.05 wt % and/or a molar ratio of total other rare earth elements:Ce in the range of from 0:1 to 5:1; (iii) a magnesium and aluminium-containing anionic clay; (iv) a material with the Perovskite structure.

Claims

exact text as granted — not AI-modified
1 . A process for regenerating coked particles, which process comprises contacting a hydrocarbon feedstock with solid particles in a reaction zone to produce coked particles, which coked particles are transferred to a regeneration zone in which they are contacted with steam to produce hydrogen and at least one or more oxides of carbon, wherein the solid particles comprise one or more of the following components:
 (i) an aluminosilicate zeolite comprising one or more of Mn, Ti and Zn;   (ii) a Ce-containing aluminosilicate zeolite with a Ce loading of at least 0.05 wt % and/or a molar ratio of total other rare earth elements:Ce in the range of from 0:1 to 5:1;   (iii) a magnesium and aluminium-containing anionic clay;   (iv) a material with the Perovskite structure.   
     
     
         2 . A process as claimed in  claim 1 , in which a reaction in the reaction zone is a coking reaction. 
     
     
         3 . A process as claimed in  claim 2 , in which the reaction is a fluid coking reaction. 
     
     
         4 . A process as claimed in  claim 3 , in which at least a portion of the solid particles are made from or comprise one or more of components (iii) and (iv). 
     
     
         5 . A process as claimed in  claim 1 , in which a reaction in the reaction zone is a catalysed hydrocarbon cracking reaction. 
     
     
         6 . A process as claimed in  claim 5 , in which the reaction is fluidised catalytic cracking. 
     
     
         7 . A process as claimed in  claim 6 , in which the solid particles comprise a mixture of particles having different catalytic cracking activity, and the catalytic activity is controlled by varying the relative ratios of the particles of different catalytic activity. 
     
     
         8 . A process as claimed in  claim 7 , in which catalyst activity is controlled by varying the relative quantities of the particles having different catalyst activity. 
     
     
         9 . A process as claimed in  claim 1 , in which the hydrocarbon feedstock is derived from crude oil. 
     
     
         10 . A process as claimed in  claim 1 , in which the hydrocarbon feedstock has a Conradson carbon content of 0.5 wt % or more. 
     
     
         11 . A process as claimed in  claim 10 , in which the Conradson carbon content is 2 wt % or more. 
     
     
         12 . A process as claimed in  claim 1 , in which 1 wt % or more of the feedstock hydrocarbons are deposited on the solid particles as coke. 
     
     
         13 . A process as claimed in  claim 1 , in which an oxygen-containing gas is additionally fed to the regeneration zone. 
     
     
         14 . A process as claimed in  claim 13 , in which the gas has an oxygen:steam molar ratio in the range of from 0.001 to 20. 
     
     
         15 . A process as claimed in  claim 1 , in which the reaction zone is operated at a temperature in the range of from 400 to 700° C., and a pressure in the range of from 0.1 to 1 MPa. 
     
     
         16 . A process as claimed in  claim 1 , in which the regeneration zone is operated at a temperature in the range of from 600 to 800° C., and a pressure in the range of from 0.1 to 20 MPa. 
     
     
         17 . A process as claimed in  claim 1 , additionally comprising a stripping zone, to which the coked particles are fed before being transferred to the regeneration zone, in which stripping zone the coked particles are contacted with a stripping gas to remove unreacted feedstock hydrocarbons and product hydrocarbons. 
     
     
         18 . A process as claimed in  claim 1 , in which coked particles are transferred to the regeneration zone, optionally via a stripping zone, and regenerated particles from the regeneration zone are transferred back to the reaction zone continuously. 
     
     
         19 . A process as claimed in  claim 17 , in which the product hydrocarbons are used to make one or more hydrocarbon fuels, selected from one or more of diesel, kerosene, aviation gasoline, gasoline jet fuel, and liquefied petroleum gases (LPG). 
     
     
         20 . A process as claimed in  claim 1 , in which the solid particles comprises a type (i) component, and the Ti, Mn or Zn content of the component is in the range of from 0.05 to 10 wt %. 
     
     
         21 . A process as claimed in  claim 20 , in which the Ti, Mn or Zn content is 4 wt % or less. 
     
     
         22 . A process as claimed in  claim 20 , in which the type (i) component comprises Ti and/or Zn, and the Ti and/or Zn content is 1.5 wt % or less. 
     
     
         23 . A process as claimed in  claim 1 , in which the solid particles comprise a type (ii) component, and the Ce content is in the range of from 0.05 to 2 wt %. 
     
     
         24 . A process as claimed in  claim 23 , in which the molar ratio of total other rare earth elements:cerium is in the range of from 0:1 to 2:1. 
     
     
         25 . A process as claimed in  claim 1 , in which the solid particles comprise a type (iii) component and comprise one or more additional elements that are trivalent when incorporated into the anionic clay, M(III), wherein the molar ratio [Al+M(III)]/[Al+Mg+M(III)] for each M(III) is in the range of from 0.01 to 1. 
     
     
         26 . A process as claimed in  claim 1 , in which the solid particles comprise a type (iii) component, and comprise one or more additional elements that are divalent when incorporated into the anionic clay, M(II), wherein the molar ratio Al/[Al+Mg+M(II)] for each M(II) is in the range of from 0.01 to 1. 
     
     
         27 . A process as claimed in  claim 1 , in which the solid particles comprise a type (iii) component, and the anionic clay comprises one or more additional elements selected from Ce, Ca, Mn, Fe, Co, Cu and Zn. 
     
     
         28 . A process as claimed in  claim 1 , in which the solid particles comprise a type (iv) component, and at least one cation in the perovskite is selected from La, Sr, Mn, Fe, Ce, Ni Co, Ag, Nb, Cs, K, Rb, Ba and Pb. 
     
     
         29 . A process as claimed in  claim 28 , in which the perovskite additionally comprises one or more element selected from Ti, V, Cu, Cr, Ca, Zr, Mo, Zn, W, Hf, Sn, alkaline earth elements, and other lanthanide elements. 
     
     
         30 . A process as claimed in  claim 28 , in which the perovskite comprises La and Mn. 
     
     
         31 . A process as claimed in  claim 28 , in which the perovskite comprises La, Sr, Fe and Co. 
     
     
         32 . A process as claimed in  claim 1 , comprising a second regeneration zone arranged in series or in parallel to the regeneration zone (the first regeneration zone). 
     
     
         33 . A process as claimed in  claim 32 , in which the first and second regeneration zones are arranged in series, such that solid particles are removed from the first regeneration zone and fed to the second regeneration zone. 
     
     
         34 . A process as claimed in  claim 32 , in which the oxygen to steam molar ratio fed to the first regeneration zone and the second regeneration zone are different. 
     
     
         35 . A process as claimed in  claim 34 , in which the oxygen steam molar ratio fed to the first regeneration zone is lower than the oxygen:steam molar ratio fed to the second regeneration zone. 
     
     
         36 . A process as claimed in  claim 32 , in which solid particles from the second regeneration zone are recycled to the first regeneration zone.

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