L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Air Liquide Global E&c Solutions Germany Gmbh

Bernd Polster

Pascal Marty

Antoine Hernandez

Natacha Haik-Beraud

Dieter Ulber

Ulrich Wolf

Catherine Denis

Alexander Roesch

Pierre-Robert Gauthier

Michel-Jean Masson

Laurent Remy

Matthew Shaver

Alexander Rösch

A process and a plant for the continuous conversion of a hydrocarbonaceous feed gas into a synthesis gas comprising carbon monoxide and hydrogen, wherein the H/CO molar ratio of the product gases can be varied within a wide range. This is achieved in that at least a part of a methane-rich gas obtained during the fractionation of the raw synthesis gas is admixed to the feed gas mixture, and that in the alternative

Process and plant for producing synthesis gas with variable composition

The present invention concerns a process for producing synthesis gas by steam reforming a hydrocarbon load in a reforming furnace provided with a combustion chamber and a convection chamber; the combustion chamber includes vertical tubes filled with catalyst wherein a mixture of hydrocarbons and steam circulates from top to bottom recovering raw synthesis gas at the bottom of the tubes, and burners disposed in rows heat the tubes; the convection chamber discharges fumes containing the gases produced by the combustion. The process also comprises steps of using the heat contained in the fumes for preheating and/or heating various fluids related or unrelated to the process. In the event of the reduction of the mass flow of fumes, the quantity of energy to be transferred into the convection area is maintained by supplying a supplementary gaseous flow to the combustion area.

Process for producing synthesis gas with preservation of the energy transfer by means of the fumes

A method for producing a synthesis-gas product gas and a vapor stream includes catalytic steam reforming a hydrocarbonaceous feedstock in a steam reformer. The hot synthesis-gas product gas stream is cooled in a heat exchanger to form a cooled synthesis-gas product gas stream and a first partial vapor stream, which is supplied to the product vapor stream. The reforming furnace is operated so as to burn a burner feedstock in burners, cool a hot flue gas stream from the burners in a heat exchanger to form a cooled flue gas stream and a second partial vapor stream, and separate the cooled flue gas stream into a waste gas stream and a flue gas recirculation stream. The flow of the recirculated flue gas is increased with decreasing flow of the synthesis-gas product gas to obtain an approximately constant product vapor stream by increasing the second partial vapor stream.

Method for operating a reformer furnace and reforming plant

A process and to an apparatus for the generation and separation of a mixture of hydrogen and carbon monoxide is provided.

Process for generating and separating a hydrogen-carbon monoxide mixture by cryogenic distillation

A method for generating and purifying syngas and to an apparatus for generating and purifying syngas is presented.

Process and apparatus for generating and purifying a syngas

A process for separating a gas mixture in a separation unit of the type in which the gas mixture comes from a reaction unit and comprises, as main constituents, hydrogen (H) and/or carbon monoxide (CO).

Method of separating a syngas containing hydrogen and carbon monoxide but also at least carbon dioxide and water vapor

The invention concerns a method for combined production of hydrogen and carbon dioxide from a mixture of hydrocarbons wherein the residual PSA is treated to produce a carbon dioxide-enriched fluid, and wherein: the residual PSA is compressed to a pressure such that the partial pressure of the CO&#x3c;SUB&#x3e;2&#x3c;/SUB&#x3e; contained ranges between about 15 and 40 bar; the residue is subjected to one or more condensation/separation steps with production of CO&#x3c;SUB&#x3e;2&#x3c;/SUB&#x3e;-rich condensate(s) and a purge of noncondensable gas; the purge of noncondensable gas is preferably treated to produce a H&#x3c;SUB&#x3e;2&#x3c;/SUB&#x3e;-rich permeate which is recycled to the PSA, and a residue which is recycled to syngas generation, Preferably, the condensate(s) are purified by cryogenic distillation to produce food grade CO&#x3c;SUB&#x3e;2&#x3c;/SUB&#x3e;. The invention also concerns an installation for implementing the method.

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Frankfurt am Main, Germany

Bernd Polster