Plural Zones Each Having A Fischer-tropsch Reaction Patents (Class 518/706)
  • Patent number: 4367206
    Abstract: A process for producing methanol and ammonia by generating nitrogen-containing synthesis gas, reacting the carbon oxides and hydrogen incompletely to methanol and passing the unreacted gas to ammonia synthesis, is characterized by carrying out the methanol synthesis in a first, steam-free, stage and in a second stage in the presence of sufficient steam to convert to carbon dioxide substantially all the carbon monoxide not converted to methanol. Methanol can be taken from the systhesis stage as part of the product or can be recycled to that stage, thus limiting its methanol output.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: January 4, 1983
    Assignee: Imperial Chemical Industries Limited
    Inventor: Alwyn Pinto
  • Patent number: 4346179
    Abstract: Process for manufacturing a constituent for motor car gasoline from a synthesis gas containing essentially carbon dioxide, carbon monoxide and hydrogen, comprising producing methanol and its higher homologs by treatment of said synthesis gas in a first catalytic reaction zone at 230.degree.-350.degree. C., cooling and condensing the effluent therefrom, separating from the liquid condensate a gas fraction, treating the latter at 240.degree.-300.degree. C. in a second catalytic reaction zone to produce a liquid methanol fraction and admixing said methanol fraction with said liquid condensate to form said gasoline constituent.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: August 24, 1982
    Assignee: Institut Francais du Petrole
    Inventors: Andre Sugier, Edouard Freund, Jean-Francois Le Page
  • Patent number: 4318997
    Abstract: A process for the multi-stage catalytic methanization of a carbon monoxide-containing and hydrogen-containing feed gas at high pressure and temperature is carried out in three stages. In the first stage the feed gas is premethanized at a temperature of from 400.degree. to 500.degree. C.; in a second stage the premethanized gas is converted and in a third stage the converted gas is finally methanized at a temperature of from 300.degree. to 380.degree. C. Apparatus for carrying out this process preferably comprises a single elongated pressure reactor which is divided into three reaction zones each of which contains a reaction catalyst formed into a fluidized bed. The feed gas preferably flows upwards through the reactor firstly through the first fluidized bed, then through the second fluidized bed and finally through the third fluidized bed after which the product gas is withdrawn from the top of the reactor.
    Type: Grant
    Filed: May 9, 1980
    Date of Patent: March 9, 1982
    Assignees: Thyssengas GmbH, Didier Engineering GmbH
    Inventors: Claus Flockenhaus, Erich Hackler
  • Patent number: 4312741
    Abstract: A catalytic process for the conversion of hydrocarbons or bituminous shales or carbon monoxide in the liquid phase in contact with hydrogen flowing upwardly through a series of successive stages, each containing a catalyst bed either semi-stationary or dispersed in the charge, the catalyst being maintained at each stage by an upward flow of hydrogen or hydrocarbon supplied below an opening in the partition wall between two successive stages and periodically allowed to pass from one stage to the next through said opening, by discontinuing said upward flow.
    Type: Grant
    Filed: July 9, 1980
    Date of Patent: January 26, 1982
    Assignee: Institut Francais du Petrole
    Inventor: Yves Jacquin
  • Patent number: 4298694
    Abstract: The invention relates to an improved catalytic methanation process wherein a feed gas containing predominantly hydrogen and being rich in carbon oxides (CO and/or CO.sub.2) is divided into two part streams of which the first is methanated partially in an adiabatic methanation reactor by a methanation catalyst whereafter the effluent from the adiabatic methanation reactor is united after cooling with the second feed gas part stream and the thus-combined stream is methanated in a cooled methanation reactor by a methanation catalyst, preferably the same as that used in the adiabatic methanation reactor. It is possible, but not always necessary, to recycle part of the recycle gas to the adiabatic methanation reactor to keep the temperature therein at a moderate level. The process is useful in connection with transport of energy from a nuclear reactor. It is advantageous because it can be operated to produce superheated steam, for use, e.g.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: November 3, 1981
    Assignee: Haldor Topsoe A/S
    Inventor: Allan Skov
  • Patent number: 4294932
    Abstract: Strongly exothermic, catalytically induced or promoted chemical reactions, e.g. the production of methane by the reaction of hydrogen with carbon oxides, are carried out by passing the reactants through an isothermically operated reactor in addition to an adiabatic reactor.
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: October 13, 1981
    Assignee: Linde AG
    Inventors: Reiner Lohmuller, Helmut Schneider, Allan Watson
  • Patent number: 4279830
    Abstract: The conversion of less than 1 H.sub.2 /CO ratio syngas to high yield of C.sub.3 plus product is accomplished with a CO reducing catalyst comprising shift characteristics and the product of Fischer-Tropsch synthesis is converted to premium gasoline and distillate fuels by contact with acidic ZSM-5 zeolite.The syngas conversion may be accomplished in any catalyst system permitting a very close temperature control on the exotherm encountered and the gasoline-distillate yield relationship may be varied as a function of temperature and pressure.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: July 21, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Werner O. Haag, Tracy J. Huang