Mobil Oil Corporation

Hans J Schoennagel

John Scott Buchanan

William E Garwood

Ying-Yen P Tsao

William D McHale

William S Borghard

George R Landolt

Tsoung Y Yan

Stephen S Wong

Sharon B McCullen

Tracy J Huang

James A Brennan

Sowmithri Krishnamurthy

Wooyoung Lee

Stanley J Lucki

An apparatus for fluidized transport of solids, e.g., catalyst to a pilot plant FCC unit. Carrier gas flow is generated by compressing a sealed bellows to displace gas and an exit tube attached to the bellows into a solids reservoir. A confinement baffle in the solids reservoir controls solids flow and aids refilling. An auxiliary breather tube with an outlet in the solids reservoir can fluidize solids as the bellows expands.

Solids feeder with integrated supply of carrier gas

A zeolite catalyst composition having increased resistance to agglomeration and/or migration of its noble metal component at high temperatures and a method for preparing the catalyst composition are disclosed. The zeolite catalyst composition contains a non-framework multivalent metal oxide to stabilize the noble metal. The multivalent metal oxide, such as alumina, can be introduced into the zeolite component by diffusion, impregnation, ion-exchange, and/or calcination.

Thermally stable noble metal-containing zeolite catalyst

A device for delivering solid particulates is disclosed. The particulate delivery system can be used to deliver a small quantity of solids to a laboratory and/or pilot plant scale fluid-catalytic cracking (FCC) device which may be operated on a semi-continuous or continuous program.

Laboratory FCC riser and particulate delivery system therefor

A sample is disposed in a sample chamber and is connected by a flow restrictor or 'leak' to a bulb of known volume. In adsorption studies, an on/off valve is opened, allowing gas to flow from the bulb into the sample chamber. The leak controls the rate of flow to be less than the equilibrium rate of adsorption/desorption of gas with respect to the sample, such that the pressure in the sample chamber at all times is an equilibrium value. The pressure in the bulb and in the sample chamber are both measured repetitively. The change in pressure in the bulb provides an indication of the net amount of gas admitted to the sample chamber. This quantity together with the change in pressure in the sample chamber can be used to provide an indication of the amount of gas which is adsorbed onto the sample. In desorption studies the bulb is evacuated relative to the sample chamber. The on/off valve is opened to allow gas to flow from the sample chamber into the bulb at a rate controlled by the leak to be less than the equilibrium rate of adsorption/desorption such that the pressure within the sample chamber is at all times an equilibrium value. Points on the adsorption and desorption isotherms can thus be determined continually.

Apparatus and method for adsorption and desorption studies, particularly

A process is described for rejuvenation of a deactivated highly siliceous noble metal-containing zeolite catalyst having a framework silica to alumina ratio of at least about 20 which contains agglomerated noble metal in its deactivated state. The process comprises redispersing the noble metals associated with the deactivated catalyst by contacting the catalyst with a stream of inert gas containing molecular chlorine, water and optionally, oxygen, a temperatures ranging from about 150.degree. to about 450.degree. C., a partial pressure of chlorine of from about 6 to about 15 Torr and a ratio of partial pressure of water to partial pressure of chlorine of from about 0.01 to about 2 for a period of time sufficient to achieve redispersion; purging said catalyst with an inert gas; and reducing said purged catalyst in a stream of hydrogen at a temperature ranging from about 140.degree. C. to 550.degree. C.

Redispersion of agglomerated noble metals on zeolite catalysts

Hydrocarbon streams containing primarily olefins such as ethylene up to and inclusive of C.sub.16 olefins are converted at elevated pressures to high viscosity index lube oil base stock by contacting them with a ZSM-5 type zeolite catalyst which has been conditioned by previous contact with a light olefin preferably of 3-6 carbon atoms per molecule under suitable conditions of temperature and pressure.

Process for converting olefins to high viscosity index lubricants

In a process for treatment of a fresh iridium-containing catalyst, the improvement consists of a three step procedure in sequence including treatment with oxygen, treatment with hydrogen chloride, and treatment with a reducing agent such as hydrogen.

Pretreatment of a fresh iridium-containing catalyst

A methanol conversion process in which a methanol feed is catalytically converted to ethylene and gasoline over a crystalline aluminosilicate zeolite catalyst which has been presteamed in order to adjust the alpha activity of the catalyst to about 6-100. Catalyst stability and cycle time on stream are increased.

Catalysts for the conversion of methanol to ethylene plus gasoline

Supported multi-metallic platinum-containing hydrocarbon conversion catalysts which are at least partially deactivated due to the deposition of carbonaceous residues thereon during contact with hydrocarbons are regenerated by (1) contacting the catalyst with oxygen to burn at least a portion of the carbonaceous residues from the catalyst, (2) contacting the carbonaceous residue depleted catalyst with hydrogen at an elevated temperature to convert a substantial portion of the non-platinum component present in the catalyst to its metallic form, (3) contacting the reduced catalyst with dry hydrogen chloride in the absence of oxygen, (4) treatment of the hydrogen chloride treated catalyst with chlorine, and (5) reduction of the chlorine treated catalyst with a reducing agent, such as hydrogen.

Catalyst regeneration procedure

There is provided, in accordance with the present invention, a catalyst composition made up of a mixture of two components, one component comprising a minor proportion of platinum and rhenium on a support and the second component comprising a minor proportion of iridium on a separate support. A process for reforming a charge stock, such as naphtha, utilizing such catalyst is also provided.

Separately supported polymetallic reforming catalyst

A process for the direct catalytic conversion of petroleum residual oils is disclosed wherein said oils, hydrogen and hot solid catalyst particles are contacted to form a suspension in a riser reactor thereby producing lower boiling components with the concomitant removal of impurities, e.g., metals, sulfur and nitrogen,, from the oils. Furthermore, the catalyst particles are regenerated in a partial oxidation mode, i.e. with oxygen and steam present to generate a synthesis gas comprising CO, CO.sub.2 and H.sub.2. Such synthesis gas can be subsequently shifted to produce a H.sub.2 --CO.sub.2 rich gas which could then serve as the hydrogen source in the riser reactor.

Direct conversion of residual oils

A durene-containing gasoline obtained from the catalytic conversion of methanol after removal of at least the light olefinic fraction is subjected to hydrotreating by contact with hydrogen over a hydrogenation metal on an acidic or non-acidic support.

Hydrotreating of bottoms fractions resulting from conversion of methanol

Catalyst compositions are provided consisting essentially of a refractory support about 0.1 to about 5 percent by weight of platinum, about 0.1 to about 5 percent by weight of iridium and about 0.1 to about 5 weight percent of halogen, where the platinum and iridium are contained on separate particles of support. The relative weight ratio of the particles containing platinum are those containing iridium is between about 10:1 and about 1:10. The compositions are useful as hydrocarbon conversion catalysts and are especially applicable for use in catalyzing the reforming of naphtha petroleum fractions.

Bimetallic reforming catalyst containing separate platinum-containing

Catalyst compositions are provided comprising a refractory support, about 0.1 to about 2 percent by weight of platinum, about 0.1 to about 2 percent by weight of iridium and about 0.1 to about 5 weight percent of halogen where the platinum and iridium are contained on separate particles of said support. The relative weight ratio of the particles containing platinum and those containing iridium is between about 10:1 to about 1:10. The compositions are useful as hydrocarbon conversion catalysts and are especially applicable for use in catalyzing the reforming of naphtha petroleum fractions. There is also disclosed a reforming process conducted in the presence of hydrogen, under reforming conditions, in the presence of the above catalyst.

Growing community of inventors

Lawrenceville, NJ, United States of America

Hans J Schoennagel