Haldor Topsoe A/s

Haldor Tops&oslash;e A/s

Haldor Topse A/s

Peter Seier Christensen

Kim Aasberg-Petersen

Jens-Henrik Bak Hansen

Thomas Sandahl Christensen

Niels Erikstrup

Viggo Lucassen Hansen

Ivar Ivarsen Primdahl

Thomas Rostrup-Nielsen

Ib Dybkjaer

Tommy Hansen

Lars Ejby Andersen

J R Rostrup-Nielsen

Poul Erik Højlund Nielsen

Charlotte Stub Nielsen

Olav Holm-Christensen

Ib Dybkjær

Burcin Temel

Thomas Rostrup Nielsen

Ib Dybkjer

Jens Rostrop-Nielsen

The invention relates to a process for the production of synthesis gas by the use of autothermal reforming in which tail gas from downstream Fischer-Tropsh synthesis is hydrogenated and then added to the autothermal reforming stage.

Process for reforming hydrocarbons

Process for the preparation of synthesis gas from an essentially dry hydrocarbon feedstock () comprising olefins, hydrogen and carbon monoxide, the process comprising the steps: (a) selectively hydrogenating the olefins in the hydrocarbon feedstock at a temperature between 60 to 190&#xb0; C. () to obtain a hydrogenated hydrocarbon feedstock comprising hydrogen, carbon monoxide and saturated hydrocarbons (; (b) adding steam () to the hydrogenated hydrocarbon feedstock; (c) performing a water gas shift reaction in the presence of steam on the hydrogenated hydrocarbon feedstock () to obtain a shifted, hydrogenated hydrocarbon mixture; (d) converting the shifted, hydrogenated hydrocarbon mixture () to obtain a synthesis gas.

Process for the preparation of synthesis gas

Process and system for the production of synthesis gas from a hydrocarbon feed stock comprising the steps of endothermic and/or adiabatic catalytic steam reforming and autothermal steam reforming in series, wherein the steam reforming is carried out in one or more endothermic stages in series or in one or more adiabatic steam reforming stages in series with intermediate heating of feed stock gas leaving the adiabatic reforming stages and wherein carbon monoxide containing gas characterised by having a molar ratio of hydrogen to carbon of less than 4.5 is added prior to at least one of the endothermic or adiabatic steam reforming stages and/or prior to the autothermal steam reforming step.

Process for the production of synthesis gas

Process and apparatus for the preparation of synthesis gas by catalytic steam and/or COreforming of a hydrocarbon feedstock comprising the following steps:

Process for the preparation of a synthesis gas

Process for the production of synthesis gas by catalytic steam reforming of a hydrocarbon containing feedstock in parallel in an autothermal steam reformer and in one or more steam reformers in series, the heat for the steam reforming reactions in the one or more steam reformers being provided by indirect heat exchange with the combined effluents from the one or more steam reformers with the autothermal steam reformer, and wherein carbon monoxide containing gas is added to the feedstock prior to the steam reforming in the autothermal steam reformer and/or prior to the steam reforming in the one or more steam reformers, the carbon monoxide containing gas having a molar ratio of hydrogen to carbon of less than 4.5 and being added in an amount resulting in a product stream having a molar ratio of hydrogen to carbon monoxide of between about 1.8 and 2.3.

Process for the preparation of hydrogen and carbon monoxide rich gas by steam reforming of hydrocarbon feedstock in presence of a steam reforming catalyst supported as thin film on the wall of a reactor, comprising steps of (a) optionally passing a process gas of hydrocarbon feedstock through a first reactor with a thin film of steam reforming catalyst supported on walls of the reactor in heat conducting relationship with a hot gas stream; (b) passing effluent from the first reactor to a subsequent tubular reactor being provided with a thin film of steam reforming catalyst and/or steam reforming catalyst pellets and being heated by burning of fuel, thereby obtaining a partially steam reformed gas effluent and a hot gas stream of flue gas; (c) passing the effluent from the second reactor to an autothermal reformer; and (d) withdrawing from the autothermal reformer a hot gas stream of product gas rich in hydrogen and carbon monoxide.

Synthesis gas production by steam reforming

Process for the preparation of hydrogen and carbon monoxide rich gas by catalytic steam reforming of a hydrocarbon feedstock comprising steps of: (a) optionally passing a process gas of hydrocarbon feedstock through a first reactor with a steam reforming catalyst heated by a hot gas stream; (b) passing the effluent from the first reactor to a subsequent tubular reactor containing a steam reforming catalyst and being heated by burning of fuel, thereby obtaining a hot gas stream of steam reformed product gas and a hot gas stream of flue gas; and wherein a reforming catalyst is placed on a metallic support having substantially the same shape as a wall of the reactor and being arranged in heat conduction relationship with the reactor wall.

Synthesis gas production by steam reforming using catalyzed hardware

Process for the preparation of a hydrogen and/or carbonmonoxide rich gas comprising the step of partial oxidation of a hydrocarbon feedstock with an oxygen containing reactant stream in presence of steam, wherein the steam is present in the hydrocarbon feedstock in an amount higher than in the oxygen containing reactant stream.

Process for autothermal reforming of a hydrocarbon feedstock

A process for the preparation of hydrogen and carbon monoxide rich gas by steam reforming of a hydrocarbon feedstock in the presence of a steam reforming catalyst disposed in the pores of a porous supporting structure aligned and adhered along the wall of a reforming reactor.

Process for the autothermal reforming of a hydrocarbon feedstock containing higher hydrocarbons

Process for the combustion of hydrocarbon fuel in a burner being exposed to corrosive atmosphere, wherein outer surface of the burner being protected by passing a non-corrosive atmosphere along the outer burner surface.

Burner for use in corrosive atmosphere and process for the combustion of hydrocarbon fuel therein

Method of manufacturing catalyzed hardware including adhering a porous structure on the hardware, applying to and/or within the porous structure a ceramic carrier material and applying catalytic active material to the ceramic carrier material.

Catalyzed hardware

Process for the soot free autothermal steam reforming of a hydrocarbon feedstock by autothermally reforming the feedstock in an autothermal reactor at a given temperature and a given steam to carbon ratio in the feedstock and operating at a pressure in the reactor being above a critical value, where no soot is present in the steam reformed feedstock.

Growing community of inventors

Copenhagen, Denmark

Peter Seier Christensen