Mobil Oil Corporation

Philip Varghese

Rene B LaPierre

Ronald H Fischer

Charles M Sorensen

Francis J Derbyshire

Darrell D Whitehurst

David O Marler

Peter J Owens

Yun-Yang Huang

James C Vartuli

Scott S Han

Thomas F Degnan

Stuart S Shih

David S Shihabi

Garry W Kirker

Tracy J Huang

Roger A Morrison

Robert P Absil

Eric G Derouane

Olefins are converted to alcohols and/or ethers employing, as catalyst, an acidic zeolite which has been bound with an essentially non-acidic refractory oxide of at least one metal of Group IVA and/or IVB of the Period Table of the Elements, e.g., silica, titania, zirconia and/or germania.

Process for the conversion of olefins to alcohols and/or ethers

A process for converting light olefin to alcohol(s), ether(s) or mixtures of alcohol(s) and ether(s) which comprises contacting a feed containing at least one light olefin with water in the vapor and/or liquid phase under olefin hydration conditions in the presence of acidic zeolite MCM-22 as olefin hydration catalyst to produce said alcohol(s) and/or ether(s).

Process for the hydration of olefins cross reference to related

A feedstock containing one or more C.sub.9 + aromatic compounds, and optionally benzene and/or toluene, undergoes conversion over a catalyst comprising a zeolite possessing a Constraint Index of from 1 to about 3 to provide a product containing a substantial amount of C.sub.6 -C.sub.8 aromatic compounds, e.g. benzene and xylene(s), predominantly the latter.

Catalytic disproportionation/transalkylation utilizing a C9+ aromatics

A process for converting propylene to isopropyl alcohol by contacting water with a propylene-containing feed at a mole ratio of water to propylene of at least about 0.5:1 (water:olefin), usually about 1:1-10:1 in the vapor and/or liquid phase under propylene hydration conditions. The hydration is carried out in the presence of a relatively constrained intermediate pore size zeolite such as ZSM-35 or ferrierite as the hydration catalyst. The zeolite is used in the acid form and with a crystal size of not more than 0.2.mu. to give high activity for conversion to isopropyl alcohol.

Process for the hydration olefins

A moderate pressure hydrocracking process in which a highly aromatic, substantially dealkylated feedstock having a boiling point in the range between 300.degree. and 650.degree. F. is processed directly to high octane gasoline by hydrocracking over a catalyst, preferably comprising a large pore size, crystalline alumino-silicate zeolite hydrocracking catalyst such as zeolite Y together with a hydrogenation-dehydrogenation component. The feedstock which is preferably a light cut light cycle oil has an aromatic content of at least 50, usually at least 60 percent and an API gravity not more than 25. The hydrocracking typically operates at 600-1000 psig at moderate to high conversion levels to maximize the production of monocyclic aromatics which provide the requisite octane value to the product gasoline.

Production of high octane gasoline

Olefins undergo conversion in the presence of water and recycled alcohol to a mixture of alcohol and ether which is then subjected to various downstream operations including distillation and extraction or decantation to provide an ether-rich product containing little if any alcohol or water. The foregoing process is especially suitable to the conversion of propylene and propylene-containing streams to diisopropyl ether which is useful, inter alia, as an octane improver for gasoline.

Process for the production of ethers

Light olefin is introduced at multiple points of entry into a conversion unit subdivided into first and second reaction zones. Reaction of olefin with water takes place in the first reaction zone under conditions intended to promote the production of alcohol therein and in the second reaction zone, alcohol produced in the first reaction zone is both dehydrated and reacted with olefin under conditions intended to promote the production of ether therein. The same or different shape selective acidic zeolites are employed as catalysts in both reaction zones.

Olefin hydration and etherification process employing serially staged

Disclosed are methods for upgrading lube oil base stocks comprising the steps of hydrocracking such materials, preferably under relatively moderate conditions, and subsequently separating the hydrocracked materials to produce in an aromatic rich extract stream and an aromatics lean raffinate stream. The separation step is preferably achieved by solvent extraction of at least a portion of the hydrocracked material. The stream comprising the aromatic rich extract is then catalytically cracked under fluidized conditions to produce gasoline and other distillates. The aromatics lean raffinate stream is further processed by dewaxing and/or the like to produce relatively high volume metric yields of low viscosity lube oil having improved viscosity-temperature characteristics.

Process for catalytic conversion of lube oil bas stocks

A moderate pressure hydrocracking process in which a highly aromatic, substantially dealkylated feedstock is processed directly to high octane gasoline by hydrocracking over a monofunctional acidic cracking catalyst, preferably comprising a large pore size, crystalline alumino-silicate zeolite hydrocracking catalyst such as zeolite Y. The feedstock which is preferably a light cycle oil obtained from catalytic cracking with an aromatic content of at least 50, usually at least 60 percent and an API gravity not more than 25. The hydrocracking typically operates at 600-1000 psig at moderate to high conversion levels to mazimize the production of monocyclic aromatics which provide the requiste octane value to the product gasoline.

A proces for hydrocracking 343.degree. C..sup.+ feedstock which contains polycyclic aromatics to form a lube base stock having enhanced oxidation stability and viscosity index is disclosed. The process employs a catalyst which comprises a layered silicate, such as magadiite which contains interspathic polymeric silica and interspathic polymeric oxides of one or more elements selected from the group consisting of Al, B, Cr, Ga, In, Mo, Nb, Ni, Ti, Tl, W and Zr, preferably Al. The catalyst may also contain a hydrogenation component, e.g., palladium.

Production of lubricasting oils by hydrocracking

A moderate pressure hydrocracking process in which a highly aromatic, substantially dealkylated feedstock is processed directly to high octane gasoline by hydrocracking over a catalyst, preferably comprising a large pore size, crystalline alumino-silicate zeolite hydrocracking catalyst such as zeolite Y together with a hydrogenation-dehydrogenation component. The feedstock which is preferably a light cycle oil has an aromatic content of at least 50, usually at least 60 percent and an API gravity not more than 25. The hydrocracking typically operates at 600-1000 psig at moderate to high conversion leavels to maximize the production of monocyclic aromatics which provide the requisite octane value to the product gasoline. The unconverted products from the hydrocracker are recyclied to the catalytic cracking unit to obtain further improvements in gasoline yield and octane.

Production of high octane gasoline by hydrocracking catalytic cracking

An improved process is described for converting propane to more valuable hydrocarbons such as butanes and C.sub.5.sup.+ aliphatics over an acidic catalyst having the structure of ZSM-5 by adding a mono- olefin to the propane feed.

Catalytic conversion of C.sub.3 aliphatics to higher hydrocarbons

A moderate pressure hydrocracking process is disclosed in which substantially dealkylated heavy distillate feedstocks are processed directly to high octane gasoline over a catalyst, preferably comprising a crystalline silicate zeolite hydrocracking component having a Constraint Index less than 2. The bottoms fraction produced from the contacting may be passed to an FCC unit for further processing. In another embodiment, the substantially dealkylated heavy distillate feedstock may be fractionated into a lighter boiling stream and a heavier boiling stream for better ease of processing.

Growing community of inventors

Voorhees, NJ, United States of America

Philip Varghese