| Patent Number |
Title Of Patent |
Date Issued |
| RE31919 |
Aromatics processing catalysts |
June 18, 1985 |
| A method of preparing aromatics processing catalysts which comprises incorporating a noble metal with a member or members of a useful class of zeolites, with such incorporation occurring after zeolite crystallization, but prior to final catalyst particle formation, i.e. extrusion into |
| 7326818 |
Selectivation of molecular sieve catalysts and use therof in hydrocarbon conversion |
February 5, 2008 |
| In a process for preparing a selectivated catalyst composition useful in the disproportionation of toluene, a catalyst comprising an acidic molecular sieve is contacted with a boron compound at a temperature in excess of 500.degree. C.; and the resultant catalyst is then contacted wi |
| 7255849 |
EMM-3, new crystalline microporous material |
August 14, 2007 |
| EMM-3 (ExxonMobil Material number 3) is a new crystalline microporous material with a framework of tetrahedral atoms connected by atoms capable of bridging the tetrahedral atoms, the tetrahedral atom framework being defined by the interconnections between the tetrahedrally coordinated |
| 7238636 |
High temperature calcination of selectivated molecular sieve catalysts for activity and diffusio |
July 3, 2007 |
| A method is disclosed for modifying a catalytic molecular sieve for shape-selective hydrocarbon conversions comprises: a) selectivating said catalytic molecular sieve by contacting with a silicon-containing selectivating agent; and b) calcining the selectivated catalytic molecular |
| 6974787 |
Gasoline sulfur reduction in fluid catalytic cracking |
December 13, 2005 |
| The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the i |
| 6923903 |
Gasoline sulfur reduction in fluid catalytic cracking |
August 2, 2005 |
| The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the i |
| 6852214 |
Gasoline sulfur reduction in fluid catalytic cracking |
February 8, 2005 |
| The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction additive comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of t |
| 6787124 |
Synthetic porous crystalline material, EMM-1, its synthesis and use |
September 7, 2004 |
| A new synthetic porous crystalline material, designated EMM-1, is disclosed having, in its calcined form, the X-ray diffraction pattern of Table 2 above. Also disclosed are methods of making EMM-1 in the presence of HF using various organic nitrogen compounds as directing agents. Alu |
| 6747182 |
Production of alkylated aromatic compounds using dealuminated catalysts |
June 8, 2004 |
| A process for preparing alkyl substituted aromatic compounds by alkylating an aromatic compound with an alkylating agent in the presence of a porous crystalline zeolite in which the zeolite has been selectively deluminated to remove nonframework aluminum. |
| 6635169 |
Method for reducing gasoline sulfur in fluid catalytic cracking |
October 21, 2003 |
| The sulfur content of liquid cracking products, especially the cracked gasoline, of a catalytic cracking process is reduced by the use of a catalyst having a product sulfur reduction component containing a metal component in an oxidation state greater than zero, wherein the average o |
| 6596662 |
Production of alkylated aromatic compounds using dealuminated catalysts |
July 22, 2003 |
| A catalyst composition is disclosed comprising a zeolite having a non-framework aluminum content of about less than 25 percent of the total aluminum content, a bulk silica:alumina ratio of about 6.5 to about 10.0 and a unit cell size ranging from about 2.440 to about 2.464 nm. |
| 6447741 |
Thermally stable, high surface area, modified mesoporous aluminophosphate material |
September 10, 2002 |
| A mesoporous aluminophosphate material includes a solid aluminophosphate composition modified with at least one element selected from zirconium, cerium, lanthanum, manganese, cobalt, zinc, and vanadium. This mesoporous aluminophosphate material has a specific surface area of at least 100 |
| 6310265 |
Isomerization of paraffins |
October 30, 2001 |
| This invention relates to a process for isomerizing paraffins comprising the step of contacting a feed containing paraffins with a catalyst comprising a synthetic porous crystalline material, designated MCM-68, which exhibits a distinctive X-ray diffraction pattern and has a unique c |
| 6136291 |
Faujasite zeolitic materials |
October 24, 2000 |
| Novel crystalline zeolitic materials of the faujasite structure having an increased ratio of zeolitic surface area to mesoporous surface area and distinctive X-Ray Diffraction peak ratios are produced by calcining zeolite Y of low sodium content at temperatures above 600.degree. C. |
| 5965474 |
FCC metal traps based on ultra large pore crystalline material |
October 12, 1999 |
| A composition for passivating metal contaminants in catalytic cracking of hydrocarbons includes a non-layered, ultra-large pore crystalline material with at least one peak at a position greater than about 18 Angstrom Units d-spacing with a relative intensity of 100, and a benzene adsorpt |
| 5779882 |
Modified MCM-56, its preparation and use |
July 14, 1998 |
| A layered composition of matter, MCM-56, has an X-ray diffraction pattern including lines at d-spacing values of 12.4.+-.0.2, 9.9.+-.0.3, 6.9.+-.0.1, 6.2.+-.0.1, 3.55.+-.0.07 and 3.42.+-.0.07 Angstroms and has been selectively modified so that the ratio of the number of active acid s |
| 5763720 |
Transalkylation process for producing aromatic product using a treated zeolite catalyst |
June 9, 1998 |
| A heavy aromatics feed is converted to lighter aromatics products, such as benzene, toluene and xylenes by contacting a C.sub.9 + aromatics fraction and benzene and/or toluene over a catalyst comprising a zeolite, such as ZSM-12, and a hydrogenation component, preferably platinum. The ca |
| 5514632 |
Use of an alumina containing bed for silicon species capture in the manufacture of silicone trea |
May 7, 1996 |
| Silicon-containing species which evolve from the calcination of silicone treated catalysts may be removed by the use of an alumina-containing guard bed. The method is particularly useful for the production of silicone treated ZSM-5 catalysts. |
| 5258114 |
Ultra large pore cracking catalyst and process for catalytic cracking |
November 2, 1993 |
| A process and catalyst for catalytic cracking comprising a non-layered, ultra-large pore crystalline material. The crystalline material preferably has a benzene adsorption capacity greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C. Preferred materials have a hexag |
| 5243112 |
Lubricant range hydrocarbons from light olefins |
September 7, 1993 |
| Lower olefins are upgraded to high viscosity index lubricants by converting olefinic feed over a medium pore zeolite catalyst consisting essentially of aluminosilicate HzSM-22 under oligomerization conditions. |
| 5036159 |
Crystalline oxides as catalysts |
July 30, 1991 |
| Ternary oxide phases, including copper oxide, which exhibit unusal electronic properties, have been determined to exhibit catalytic function for the oxidiation of carbon monoxide, the hydrogenation of ethylene and the cracking of hydrocarbons. |
| 4919787 |
Metal passivating agents |
April 24, 1990 |
| An improved method for passivating metals in a hydrocarbon feedstock during catalytic cracking has been discovered. The method involves contacting the feedstock with a passivating agent comprising a precipitated porous rare earth oxide, alumina, and aluminum phosphate precipitate. The pa |
| 4910181 |
Hydrogen bronze catalyst for demetallizing petroleum resids |
March 20, 1990 |
| The catalyst composition comprises a layered metal oxide and/or sulfide of a metal selected from the group consisting of Group VB and VIB metals and containing inserted atomic hydrogen therein, with no chemical bond between said atomic hydrogen and anionic oxygen or anionic sulfur of the |
| 4873216 |
Lanthana-alumina-aluminum phosphate catalyst composition |
October 10, 1989 |
| This invention relates to a new catalyst composition. The catalyst composition comprises a catalytic component and a support comprising an amorphous combination of lanthana, alumina and aluminum phosphate, and may be characterized after calcination by a pore size distribution including |
| 4810361 |
Resid hydrotreating process using lanthana-alumina-aluminum phosphate catalyst |
March 7, 1989 |
| This invention relates to a new and useful improvement in a process for upgrading petroleum residua. The process comprises contacting a vacuum or atmospheric resid feed with a metal-containing lanthana-alumina-aluminum phosphate catalyst whereby the resid feedstock is simultaneously |
| 4810357 |
Catalytic dewaxing of light and heavy oils in dual parallel reactors |
March 7, 1989 |
| Relatively heavy or relatively light lube chargestocks are dewaxed in two parallel, separate reactors. The reactor used for dewaxing the relatively light chargestocks contains a crystalline aluminosilicate zeolite exemplified natural or synthetic ferrierite, ZSM-22, ZSM-23 and ZSM-35 |
| 4781817 |
Hydrogen bronze catalyst and improved resid upgrading processes using it |
November 1, 1988 |
| The present invention relates to resid hydrotreating with hydrogen bronze catalyst which unexpectedly achieve superior demetallization compared to large pore CoMo/Al.sub.2 O.sub.3 catalyst. |
| 4767733 |
Amorphous refractory composition |
August 30, 1988 |
| This invention relates to a new and useful amorphous, solid, combination refractory composition and to its synthesis. The new composition is an x-ray amorphous rare earth aluminum phosphorus oxide having high surface area and unique pore size distribution. The composition is useful as a |
| 4686312 |
Aromatics production |
August 11, 1987 |
| Disclosed is a multistage process for converting lower aliphatic oxygeanated hydrocarbon feedstock to hydrocarbon product rich in benzene, toluene and/or xylene which comprises:contacting said oxygenated hydrocarbons in a primary stage with a medium pore shape selective acidic zeolite to |
| 4663492 |
Active zeolite catalysts of improved stability for producing gasoline from methanol |
May 5, 1987 |
| A feedstock of low molecular weight oxygenates such as methanol and/or dimethylether is contacted with a mildly presteamed or hydro-thermally treated zeolite catalyst in a reaction zone to produce liquid hydrocarbons in the gasoline boiling range. The pretreated zeolite catalyst has an |
| 4618737 |
Peroxide-induced polymerization of MOGD liquids to high viscosity lubes |
October 21, 1986 |
| High viscosity lubricants are formed by oligomerizing olefins in two stages. The first stage converts a lower olefin feed to distillate range hydrocarbons in the presence of an aluminosilicate zeolite such as ZSM-5. The distillate effluent from the first stage is further polymerized to |
| 4614578 |
Octane and total yield improvement in catalytic cracking |
September 30, 1986 |
| Octane and total yield improvement in catalytic cracking processes can be attained by the addition to conventional cracking catalysts of very small amounts of additive catalyst comprising a class of zeolites characterized by a silica to alumina mole ratio greater than about 12 and a cons |
| 4605678 |
Separation of catalyst from slurry bubble column wax and catalyst recycle |
August 12, 1986 |
| A process for removing catalyst fines from the wax product produced in a slurry Fischer-Tropsch reactor comprises removing the wax product from the reactor and separating the catalyst fines by passing the wax product through a high gradient magnetic field, whereby the catalyst fines are |
| 4605488 |
Catalytic dewaxing of light and heavy oils in dual parallel reactors |
August 12, 1986 |
| Relatively heavy and relatively light lube chargestocks are dewaxed in two parallel, separate reactors. The reactor used for dewaxing the relatively light chargestock contains a crystallize zeolite having pore openings defined by: (1) a ratio of sorption of n-hexane to o-xylene, on a vol |
| 4595702 |
Conversion of synthesis gas to liquid hydrocarbons |
June 17, 1986 |
| This invention provides a process for converting synthesis gas to hydrocarbon fuels in the C.sub.5 -C.sub.24 (gasoline and distillate) range. The conversion proceeds with minimal formation of by-product fractions. The conversion is accomplished with a low nitrogen content iron cataly |
| 4594146 |
Conversion with zeolite catalysts prepared by steam treatment |
June 10, 1986 |
| A zeolite of improved stability for use in acid-catalyzed reactions is prepared by mildly presteaming the catalyst under controlled conditions of temperature, time, and steam partial pressure. The resulting catalyst retains nearly the same activity as that of a fresh unsteamed catalyst. |
| 4575416 |
Hydrodewaxing with mixed zeolite catalysts |
March 11, 1986 |
| A catalytic dewaxing process is improved by the use of a mixed zeolite catalyst which combines the following components: a first zeolitic catalyst having a Constraint Index not less than 1, a second, different, catalytic component of specified characteristics, and a hydrogenation com |
| 4574043 |
Catalytic process for manufacture of low pour lubricating oils |
March 4, 1986 |
| The invention relates to a process for catalytically hydrodewaxing hydrocarbon feedstocks over zeolite ZSM-22 to produce high yields of low pour, high viscosity index hydrocracked lubricating oil stock. |
| 4526942 |
Catalyst for olefin polymerization |
July 2, 1985 |
| Zeolite supported, organochromium based catalyst compositions are provided which are especially suitable for the polymerization of 1-olefins such as ethylene. Pi-bonded organochromium [II] compounds such as chromocene (dicyclopentadienyl chromium) are reacted with ZSM-5 type zeolites to |
| 4524232 |
Process for producing high viscosity index lubes |
June 18, 1985 |
| A combination process for producing high viscosity index lubes from light olefins is provided wherein light olefins are first passed over a small pore zeolite and the liquid product therefrom is then processed over an intermediate pore zeolite to provide a lubricating oil with a higher |
| 4523047 |
Process for syngas conversions to liquid hydrocarbon products utilizing ZSM-45 zeolite |
June 11, 1985 |
| The liquid carrier in a Fischer-Tropsch synthesis slurry reactor system is periodically or continually separated and subjected to cracking and isomerization in the presence of suitable catalysts. The treated carrier is returned to the reactor system and the accumulation of high viscosity |
| 4522929 |
Active zeolite catalysts of improved stability |
June 11, 1985 |
| A zeolite of improved stability for use in acid-catalyzed reactions is prepared by mildly presteaming the catalyst under controlled conditions of temperature, time, and steam partial pressure. The resulting catalyst retains nearly the same activity as that of a fresh unsteamed catalyst. |
| 4517399 |
Process for the production of high viscosity index lubricating oils from olefins |
May 14, 1985 |
| An improved process for the production of high viscosity lubricating oils obtained by reacting olefins over ZSM-5 type zeolites at elevated temperatures and pressures in order to obtain a liquid product and thereafter recovering a lube oil fraction from said liquid product is disclos |
| 4490569 |
Process for converting propane to aromatics over zinc-gallium zeolite |
December 25, 1984 |
| The elution of zinc from zinc-impregnated zeolite catalysts is minimized by incorporating gallium into the catalyst composition. Optionally, palladium may also be included in the composition. The catalyst composition is used to effect the conversion of propane in hydrocarbon streams to a |
| 4482773 |
Catalyst for xylene isomerization |
November 13, 1984 |
| Isomerization of xylene in admixture with ethylbenzene by contact with a zeolite catalyst such as ZSM-5 is improved by use of a zeolite having a catalyst particle size of at least 1 micron and having incorporated thereon two metals such as platinum and magnesium. |
| 4474618 |
Overnight cloud and color in lube dewaxing using platinum zeolite catalyst |
October 2, 1984 |
| A highly dispersed platinum ZSM-5 catalyst used in hydrodewaxing lube stock yields a product with improved overnight cloud performance and lighter ASTM color. |
| 4471145 |
Process for syngas conversions to liquid hydrocarbon products utilizing zeolite Beta |
September 11, 1984 |
| The liquid carrier in a Fischer-Tropsch synthesis slurry reactor system is periodically or continually separated and subjected to cracking and isomerization in the presence of suitable catalysts. The treated carrier is returned to the reactor system and the accumulation of high viscosity |
| 4469909 |
Heavy aromatics process |
September 4, 1984 |
| This invention provides a catalytic process for converting to BTX a C.sub.9 + monocyclic aromatic hydrocarbon feed having a prescribed content of alkyl groups with more than one carbon atom. It further provides a process wherein said conversion is coupled with a catalytic xylene isomeriz |
| 4452958 |
Olefin polymerization with catalysts derived from chromium exchanged zeolites |
June 5, 1984 |
| There is provided the polymerization of 1-olefins such as ethylene with zeolite supported, chromium catalyst compositions. Chromium ions are ion exchanged with zeolites to produce such catalysts. |
| 4446243 |
Catalysts for olefin polymerization comprising the reaction product of organotitanium and organo |
May 1, 1984 |
| Zeolite supported, organometallic derived catalyst compositions are provided which are especially suitable for the polymerization of 1-olefins such as ethylene. Organotitanium and organochromium compounds such as tributylchromium and tetrabutyltitanium are reacted with ZSM-5 type zeo |
