Uop Lcc

Union Carbide Corporation

Chevron Research Company

Chevron Research & Technology Company

Albert S Behan

Stephen R Dunne

Alan P Cohen

Mark T Staniulis

Robert L Chiang

Michael J McKeon

Donald Henry Mohr

Alfred W Naumann

Robert L Bedard

John D Sherman

Richard R Willis

Charles R Wilson

Philip Connolly

Charles P Wilson

Applicants have developed a unique process for preparing a shaped article comprising an ion exchange composition and a hydroxy oxide binder. The ion exchange compositions include metallotitanates, metallogermanates, pillared clays and metal phosphonates. The process involves combining the ion exchange composition with a binder precursor and water, forming the mixture into a shaped article and heating the article at a temperature of about 85.degree. C. to about 120.degree. C. These shaped articles are useful for removing metal ions such as cesium from feed streams.

Shaped article and process for preparing the article

A desiccant cooling apparatus and process using a solid adsorbent and refrigerant wherein the solid adsorbent is selected from the group consisting of zeolite Y-85, a low cerium rare earth exchanged Y-84 and a rare earth exchanged LZ-210, and the adsorbent is bonded directly to the heat exchange tubes within the device by a novel slip coating process resulted in significant improvements in thermal efficiency and overall performance.

Adsorbent composites for sorption cooling process and apparatus

Layered adsorbent-substrate composites are prepared by methods comprising heating the surface of an aluminum substrate, contacting the surface of the substrate with a slurry containing the adsorbent and a binder, and heating the coatings to form hardened surfaces which can have excellent adsorption and mechanical properties and have a variety of uses such as adsorbents in automobile mufflers.

Muffler device for internal combustion engines

Layered adsorbent-substrate tubes are prepared by a method comprising heating the surface of an aluminum substrate, contacting the surface of the substrate with a slurry containing the adsorbent and a binder, and heating the coatings to form hardened surfaces which can have excellent adsorption and mechanical properties in devices for cooling or heating by adsorption of refrigerating fluid on a solid adsorbent.

Method of coating aluminum substrates with solid adsorbent

Layered adsorbent-substrate composites are prepared by methods comprising heating the surface of an aluminum substrate, contacting the surface of the substrate with a slurry containing the adsorbent and a binder, and heating the coatings to form hardened surfaces which can have excellent adsorption and mechanical properties and have a variety of uses such as adsorbents in automobile mufflers and a desiccants in multiple pane windows.

Layered adsorbent-substrate composites are prepared by methods comprising heating the surface of an aluminum substrate, contacting the surface of the substrate with a slurry containing the adsorbent and a binder, and heating the coatings to form hardened surfaces which can have excellent adsorption and mechanical properties and have a variety of uses such as adsorbents in automobile mufflers and as desiccants in multiple pane windows.

Reforming to produce aromatics from aliphatics, using a bond zeolite catalyst containing a Group VIII metal such as platinum, has been found to be extremely sensitive to water, even at water concentrations as low as 3 ppm in the feed, unless certain catalysts having a low water sensitivity index are used. The water sensitivity index (WSI) is described and methods for making catalysts with a low WSI are described. The sulfur content of the feed to the reforming/aromatics production process is preferably below 50 parts per billion. The catalysts used in the reforming process is preferably a high crush strength catalyst and is preferably prepared by steps including treating L zeolite with a binding enhancement agent prior to binding with a binder such as silica, silica/alumina or alumina.

Reforming using a bound zeolite catalyst

A method for enhancing the binding of certain negatively surface charged molecular sieves to a silica binder is disclosed. As modified, molecular sieves having enhanced binding characteristics are also taught.

Silica bonding of molecular sieves

Reforming to produce aromatics from aliphatics, using a bound zeolite catalyst containing a Group VIII metal such as platinum, has been found to be extremely sensitive to water, even at water concentrations as low as 3 ppm in the feed, unless certain catalysts having a low water sensitivity index are used. The water sensitivity index (WSI) is described and methods for making catalysts with a low WSI are described. The sulfur content of the feed to the reforming/aromatics production process is preferably below 50 parts per billion. The catalyst used in the reforming process is preferably a high crush strength catalyst and is preferably prepared by steps including treating L zeolite with a binding enhancement agent prior to binding with a binder such as silica, silica/alumina or alumina.

High surface area molybdenum disulfide, MoS.sub.2, is produced by the thermal decomposition of selected ammonium thiomolybdate salts at temperatures of about 300.degree.-800.degree. C., with said salts being heated to decomposition temperature at a rate in excess of about 15.degree. C./min., e.g., about 20.degree.-30.degree. C./min., in an essentially oxygen-free atmosphere. The product molybdenum disulfide has superior catalytic properties for the water gas shift and methanation reactions compared with conventional MoS.sub.2. The stability of the catalyst is enhanced by decomposing the thiomolybdate salt in admixture with an inert, preformed particulate diluent or by bulk doping said salt with tungsten or vanadium prior to decomposition of the salt. The molybdenum disulfide of the invention also has desirable properties for use in catalyzed hydrogenation and hydrotreating reactions, i.e., hydrodenitrogenation and hydrodesulfurization reactions, particularly when employed in nickel or cobalt-promoted form.

Molybdenum disulfide catalyst and the preparation thereof

High surface area molybdenum disulfide, MoS.sub.2, is produced by the thermal decomposition of selected substituted ammonium thiomolybdate salts at temperatures of about 300.degree.-800.degree. C., with said salts being heated to decomposition temperature slowly, in an essentially oxygen-free atmosphere, through the temperature interval in which the substantial portion of the particular substituted ammonium thiomolybdate salts decompose. The product molybdenum disulfide has superior catalytic properties for the water gas shift and methanation reactions compared with conventional MoS.sub.2. The stability of the catalyst is enhanced by decomposing the thiomolybdate salt in admixture with an inert, preformed particulate diluent or by bulk doping said salt with tungsten or vanadium prior to decomposition of the salt. The molybdenum disulfide of the invention also has desirable properties for use in catalyzed hydrogenation and hydrotreating reactions, i.e., hydrodenitrogenation and hydrodesulfurization reactions, particularly when employed in nickel or cobalt-promoted form.

Growing community of inventors

Bronxville, NY, United States of America

Albert S Behan