Haldor Topsoe A/s

Haldor Topse A/s

Sasol Technology Proprietary Limited

Ib Dybkjaer

Kim Aasberg-Petersen

Peter Seier Christensen

Niels Erikstrup

Jens-Henrik Bak Hansen

Thomas Rostrup-Nielsen

Poul Erik Højlund Nielsen

Andre Peter Steynberg

Viggo Lucassen Hansen

Christian Wix

Karsten Pedersen

Jesper Nerlov

Thomas Rostrup Nielsen

J R Rostrup-Nielsen

Neils Erikstrup

Poul Erik Hojlund Nielsen

Poul Erik Nielsen

Process for the production of a synthesis gas for use in the production of chemical compounds from a hydrocarbon feed stock containing higher hydrocarbons comprising the steps of: (a) in a pre-reforming stage pre-reforming the feed stock with steam to a pre-reformed gas containing methane, hydrogen, carbon monoxide and carbon dioxide; and (b) cooling the pre-reformed gas to below its dewpoint and removing condensed water; and (c) reducing the amount of carbon dioxide the in the pre-reformed gas from step (b) to obtain a module of (H&#x2212;CO)/(CO+CO) of between 1.0 and 3.8 in the pre-reformed gas.

Process for the production of synthesis gas

A process for a reduction in the amount of sulphur compounds, hydrogen cyanide, formic acid and formic acid derivatives in synthesis gas comprising these compounds, the process comprising contacting the synthesis gas with a sulphur absorbent comprising material and thereafter with a catalyst comprising one or more metals selected from the group consisting of silver, gold, copper, palladium, platinum and their mixtures and supported on a carrier comprising at least one of the oxides of scandium, yttrium, lanthanum, cerium, titanium, zirconium, aluminum, zinc, chromium and molybdenum.

Process for a reduction in the amount of sulphur compounds, hydrogen cyanide, and formic acid in synthesis gas

A process () for the preparation and conversion of synthesis gas includes reforming a feed gas () comprising methane in a reforming stage () to produce synthesis gas () which includes hydrogen and carbon monoxide. Some of the hydrogen and carbon monoxide is converted to a Fischer-Tropsch product () in a Fischer-Tropsch hydrocarbon synthesis stage (). A tail gas (), including unreacted hydrogen and carbon monoxide, methane and carbon dioxide, is separated from the Fischer-Tropsch product (). In a tail gas treatment stage (), the tail gas () is treated by reforming the methane in the tail gas () with steam () and removing carbon dioxide to produce a hydrogen rich gas (). The tail gas treatment stage () may be either a combined tail gas treatment stage () or a composite tail gas treatment stage. The carbon dioxide from the tail gas treatment stage () is fed to the reforming stage ().

Process for the preparation and conversion 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 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 preparation of synthesis gas

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

Growing community of inventors

Copenhagen, Denmark

Ib Dybkjaer