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Standard Oil Company (indiana)

Amoco Corporation

The Standard Oil Company

Other

Bp Amoco Corporation

Frank S Modica

Ralph J Bertolacini

Eugene H Hirschberg

Maureen L Bricker

Edwin Paul Boldingh

James E Rekoske

Leonid B Galperin

Robert B Larson

Thomas K McBride, Jr

Jeffrey T Miller

George A Huff

Victor K Shum

Bruce D Alexander

Roger H Cayton

Mark K Barr

Richard A Kretchmer

Santi Kulprathipanja

Anil Rajaram Oroskar

Gavin Paul Towler

Antoine Negiz

Lubo Zhou

Stephen R Dunne

Jayant Kumar Gorawara

Gregory F Maher

Robert D Buttke

Stephen R Caskey

Daniel R Sioui

Bruce A Fleming

Pijus Kanti Roy

Timur V Voskoboinikov

Munish Kumar Sharma

Sandra L Cilluffo

A process is provided for removing contaminants from olefin containing Cstreams. The streams are contacted with an X based zeolite adsorbent comprising greater than 88% X zeolite at a SiO/AlOratio of less than 2.5 and an alkali metal salt present in excess of an amount required to achieve full exchange of cation sites on the X based zeolite. The resulting alkali oxide on a volatile free basis is less than 1% (by mass) of the X based adsorbent. The contaminants that are removed include sulfur, oxygenate, and nitrogen based contaminants.

Adsorbent for contaminant removal from C4 hydrocarbons

A process for preparing a naphtha reforming catalyst has been developed. The process involves the use of a chelating ligand such as ethylenediaminetetraacetic acid (EDTA). The aqueous solution of the chelating ligand and a tin compound is used to impregnate a support, e.g., alumina extrudates. A platinum-group metal is also an essential component of the catalyst. Rhenium may also be a component. A reforming process using the catalyst has enhanced yield, activity, and stability for conversion of naphtha into valuable gasoline and aromatic products.

Reforming catalyst with chelated promoter

Transalkylation catalysts comprising acidic molecular sieve, rhenium, tin and germanium have good activities and attenuate aromatic ring saturation and lights co-production.

Synergistic rhenium and germanium-containing catalysts potentiated with tin and alkylaromatic transalkylation processes using such catalysts

Transalkylation catalysts comprising acidic molecular sieve, iridium and germanium have good activities and attenuate aromatic ring saturation and lights co-production where high atomic ratios of germanium to iridium are present.

Iridium and germanium-containing catalysts and alkylaromatic transalkylation processes using such catalysts

Transalkylation catalysts comprising acidic molecular sieve, palladium and germanium have good activities and attenuate aromatic ring saturation and lights co-production provided that sufficient palladium is contained in the catalyst.

Palladium and germanium-containing catalysts and alkylaromatic transalkylation processes using such catalysts

Iridium and germanium-containing catalysis and alkylaromatic transalkylation processes using such catalysts

A catalyst, and a process for using the catalyst, that effectively converts and transalkylates indane and Cand heavier polycyclic aromatics into Caromatics is herein disclosed. The catalyst comprises a solid-acid support such as mordenite plus a metal component such as rhenium. The catalyst provides excellent conversion of such heavy aromatic species as naphthalene, which is also observed by a decrease in the ending-boiling-point of a hydrocarbon stream passed over the catalyst. The same catalyst is also effective for transalkylation of lighter aromatics, thus yielding a valuable xylenes product stream out of the process.

Catalytic conversion of polycyclic aromatics into xylenes

Reforming catalyst with chelated promotor

A novel integrated system for the co-production of heat and electricity for residences or commercial buildings is based on the cracking of hydrocarbons to generate hydrogen for a fuel cell. Compared to prior art reforming methods for hydrogen production, the cracking reaction provides an input stream to the fuel cell that is essentially free of CO, a known poison to the anode catalyst in many fuel cell designs, such as PEM fuel cells. The cracking reaction is coupled with an air or steam regeneration cycle to reactivate that cracking catalyst for further use. This regeneration can provide a valuable source of heat or furnace fuel to the system. A novel control method for system adjusts the durations of the cracking and regeneration cycles to optimize the recovery of reaction heat.

Hydrogen generation via methane cracking for integrated heat and electricity production using a fuel cell

Exhaust gas emissions from an internal combustion engine are controlled through the use of a heat exchanger, a sulfur oxide absorbent, and two catalytic converter zones. The exhaust gas is passed sequentially through: (1) a first catalytic converter zone, (2) the sulfur oxide absorbent, and (3) a second catalytic converter zone. The heat exchanger is used to transfer heat from the first catalytic converter zone to the second catalytic converter zone.

Control of exhaust emissions from an internal combustion engine

Exhaust gas emissions from an internal combustion engine are controlled through the use of a heat exchanger, a sulfur oxide absorbent, and a catalytic converter. The exhaust gas is contacted with the sulfur oxide absorbent before it is passed to the catalytic converter, and the heat exchanger is used to extract heat from the exhaust gas before the exhaust gas is contacted with the sulfur oxide absorbent. The heat extracted from the exhaust gas by the heat exchanger is then used to heat the catalytic converter. In a preferred embodiment, the exhaust gas is also contacted with a hydrocarbon adsorbent which: (1) adsorbs organic compounds, such as hydrocarbons, from the exhaust gas at the low temperatures which are typical of an engine cold-start, and (2) desorbs them at the higher temperatures which are reached after sustained engine operation.

A process is provided for the hydrogenation of benzene and the isomerization of a light naphtha feedstock consisting essentially of a stream having a boiling range of from about 50.degree. F. to about 240.degree. F. comprising the steps of contacting the light naphtha feedstock at isomerization conditions in an isomerization reaction zone with an isomerization catalyst in the presence of hydrogen and producing an isomerization reaction zone effluent, combining the isomerization reaction zone effluent with a supplemental benzene-containing stream comprising at least 1 weight percent benzene and forming a hydrogenation zone feedstock, and hydrotreating the hydrogenation zone feedstock at hydrogenation conditions in a hydrogenation reaction zone with a hydrogenation catalyst in the presence of hydrogen for producing an isomerate product comprising less than 0.1 weight percent benzene.

Benzene removal in an isomerization process

Growing community of inventors

Naperville, IL, United States of America

Frank S Modica