Patents by Inventor Marvin I. Greene

Marvin I. Greene has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20030176754
    Abstract: A C3 to C6 hydrogen cut from a cracking unit is processed for the conversion of olefins to propylene and hexene via autometathesis. The autometathesis of a mixed normal butenes feed in the presence of a metathesis catalyst operates without any ethylene in the feed mix to the metathesis reactor. Some fraction of the 2-butene feed may be isomerized to 1-butene and the 1-butene formed plus the 1-butene in the feed react rapidly with the 2-butene to form propylene and 2-pentene. The feed to the reactor also includes the recycle of the 2-pentene formed in the reactor with unreacted butenes to simultaneously form additional propylene and hexene. In one embodiment, some or all of the 3-hexene formed in the reaction is isomerized to 1-hexene. In another embodiment, some portion of the 3-hexene produced in the main metathesis reaction is reacted with ethylene to produce 1-butene without the need for superfractionation.
    Type: Application
    Filed: March 7, 2002
    Publication date: September 18, 2003
    Inventors: Robert J. Gartside, Marvin I. Greene, Quincy J. Jones
  • Publication number: 20030028063
    Abstract: An olefin metathesis catalyst consists essentially of a transition metal or oxide thereof supported on a high purity silica support possessing low amounts of acidic or basic sites such that in the reaction of pure butene-1 over said catalyst under metathesis reaction conditions the reaction possesses a weight selectivity to hexene-3 of at least 55 wt %.
    Type: Application
    Filed: June 13, 2001
    Publication date: February 6, 2003
    Inventors: Robert J. Gartside, Marvin I. Greene, Ali M. Khonsari, Lawrence L. Murrell
  • Publication number: 20030009072
    Abstract: An olefin isomerization process employs a basic metal oxide catalyst, such as magnesium oxide, which retains at least about 85 percent of its initial activity for at least about 168 hours of on-stream time. The catalyst is preferably a high purity magnesium oxide. The olefin isomerization process and catalyst described herein are advantageously used for the production of a terminal olefin such as 1-butene from an internal olefin such as 2-butene.
    Type: Application
    Filed: May 23, 2001
    Publication date: January 9, 2003
    Inventors: Robert J. Gartside, Marvin I. Greene
  • Publication number: 20030004385
    Abstract: A process is provided for treating a basic metal oxide olefin isomerization catalyst, such as magnesium oxide. The catalyst is activated by contact with a deoxygenated nitrogen under activation conditions. The olefin isomerization process and catalyst described herein are advantageously used for the production of a terminal olefin such as 1-butene from an internal olefin such as 2-butene.
    Type: Application
    Filed: May 23, 2001
    Publication date: January 2, 2003
    Inventors: Robert J. Gartside, Marvin I. Greene
  • Patent number: 6008415
    Abstract: Cyclohexane is catalytically oxidized to produce cyclohexanol and cyclohexanone and precursors of these products. The oxidation is carried out in a liquid oxidation reactor at high oxygen concentrations (greater than 30% and preferably greater than 90% oxygen concentration) and at relatively low temperatures (less than 160.degree. C.). The use of the liquid oxidation reactor permits the use of these high oxygen concentrations without forming dangerously high levels of oxygen in the overhead gas phase. The result is an increased yield and selectivity of the desired products.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: December 28, 1999
    Assignee: ABB Lummus Global Inc.
    Inventors: Marvin I. Greene, Charles Summer, Robert J. Gartside
  • Patent number: 5780683
    Abstract: Cyclohexane is catalytically oxidized to produce cyclohexanol and cyclohexanone and precursors of these products. The product is then catalytically hydrogenated while the product is still at reaction temperature to produce additional cyclohexanol and cyclohexanone from the precursors. The oxidation is carried out in a liquid oxidation reactor at high oxygen concentrations (greater than 30% and preferably greater than 90% oxygen concentration) and at relatively low temperatures (less than 160.degree. C.). The use of the liquid oxidation reactor permits the use of these high oxygen concentrations without forming dangerously high levels of oxygen in the overhead gas phase. The result is an increased yield and selectivity of the desired products. The hydrogenation is carried out in a reactor using a catalyst of palladium supported on carbon.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: July 14, 1998
    Assignee: ABB Lummus Global Inc.
    Inventors: Marvin I. Greene, Charles Sumner, Robert J. Gartside
  • Patent number: 5122260
    Abstract: In the two stage liquefaction of a carbonaceous solid such as coal wherein coal is liquefied in a first stage in the presence of a liquefaction solvent and the first stage effluent is hydrogenated in the presence of a supported hydrogenation catalyst in a second stage, catalyst which has been previously employed in the second stage and comminuted to a particle size distribution equivalent to 100% passing through U.S. 100 Mesh, is passed to the first stage to improve the overall operation.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: June 16, 1992
    Assignee: ABB Lummus Crest Inc.
    Inventors: Avinash Gupta, Marvin I. Greene
  • Patent number: 5120429
    Abstract: In a process for producing distillates from coal by a first stage thermal liquefaction followed by a catalytic hydrogenation, liquefaction solvent is added at points spaced over the length of the thermal liquefaction heater.Coal may be co-processed with petroleum oil by adding pre-hydrogenated oil to the first stage or unhydrogenated oil to the second stage.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: June 9, 1992
    Assignee: Lummus Crest Inc.
    Inventors: Avinash Gupta, Marvin I. Greene
  • Patent number: 4477594
    Abstract: A process for the synthesis of mixtures which include saturated aliphatic alcohols is disclosed. In the first step of the process, the first catalyst activation stage, a catalyst, which comprises the oxides of copper, zinc, aluminum, potassium and one or two additional metals selected from the group consisting of chromium, magnesium, cerium, cobalt, thorium and lanthanum, is partially activated. In this step, a reducing gas stream, which includes hydrogen and at least one inert gas, flows past the catalyst at a space velocity of up to 5,000 liters (STP) per hour, per kilogram of catalyst. The partially activated catalyst is then subjected to the second step of the process, second-stage catalyst activation. In this step, the catalyst is contacted by an activation gas stream comprising hydrogen and carbon monoxide present in a volume ratio of 0.5:1 and 4:1, respectively, at a temperature of 200.degree. to 450.degree. C. and a pressure of between 35 and 200 atmospheres.
    Type: Grant
    Filed: December 16, 1982
    Date of Patent: October 16, 1984
    Assignee: Chem Systems, Inc.
    Inventors: Marvin I. Greene, Abraham P. Gelbein
  • Patent number: 4439309
    Abstract: A process for the cracking of carbonaceous liquid feedstock employing a hydrogen donor solvent, derived from the feedstock, in a two-stage cracking operation is disclosed.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: March 27, 1984
    Assignee: Chem Systems Inc.
    Inventors: Marvin I. Greene, Abraham P. Gelbein
  • Patent number: 4363716
    Abstract: Heavy carbonaceous liquid having a melting point below 250.degree. C. is upgraded to lighter products by hydrogen donor solvent cracking, using recycled solvent derived at least in part from a middle distillate fraction of either the heavy carbonaceous liquid or from the cracked products which is subjected to one or more catalytic hydroprocessing steps before recycling.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: December 14, 1982
    Inventors: Marvin I. Greene, Abraham P. Gelbein
  • Patent number: 4221763
    Abstract: A high pressure, high temperature reactor device having a pair of spaced tube sheets for supporting a tube nest, one tube sheet being formed with a bellows to compensate for expansion and contraction of the tube nest longitudinally during temperature changes and the second tube sheet supporting the opposite end tubes of the tube nest, with injector tubes mating with each reactor tube and projecting through the reactor shell.
    Type: Grant
    Filed: August 29, 1978
    Date of Patent: September 9, 1980
    Assignee: Cities Service Company
    Inventor: Marvin I. Greene