Shell Oil Comapny

Frank Haiko Geuzebroek

Robert Van Den Berg

Matthieu Simon Henri Fleys

Mark Jan Prins

Ayhan Eksilioglu

The invention provides a process for the removal of COfrom a gas, the process comprising the steps of: (a) removing COfrom the gas by contacting the gas with absorbing liquid in an absorber to obtain absorbing liquid enriched in COand a purified gas; (b) heating absorbing liquid enriched in CO(c) contacting heated absorbing liquid enriched in COwith a stripping gas at elevated temperature in a regenerator to obtain regenerated absorbing liquid and a hot gas stream enriched in COwherein at least part of the absorbing liquid enriched in COis heated through external heat exchange with the hot gas stream enriched in CO.

Process for removal of carbon dioxide from a gas

The invention is directed to a process to prepare a hydrogen rich gas mixture from a solid sulphur- and halogen-containing carbonaceous feedstock. The process involves the following steps. Step (a): gasification of the solid carbonaceous feedstock with an oxygen-containing gas to obtain a gas mixture comprising halogen compounds, sulphur compounds, hydrogen and at least 50 vol. % carbon monoxide, on a dry basis. Step (b): contacting the gas mixture with a quench gas or quench liquid to reduce the temperature of the gas mixture to below 900&#xb0; C. Step (c) contacting the gas mixture with water having a temperature of between 150 and 250&#xb0; C. to obtain a gas mixture comprising between 50 and 1000 ppm halogen and having a steam to carbon monoxide molar ratio of between 0.2:1 and 0.9:1. Step (d): subjecting the gas mixture obtained in step (c) to a water gas shift reaction wherein part or all of the carbon monoxide is converted with the steam to hydrogen and carbon dioxide in the presence of a catalyst as present in one fixed bed reactor or in a series of more than one fixed bed reactors and wherein the temperature of the gas mixture as it enters the reactor or reactors is between 190 and 230&#xb0; C. Step (e): carbon dioxide and sulphur compounds are separated from the shifted gas mixture obtained in step (d) by contacting the shifted gas mixture with a solvent comprising dialkyl ethers of polyethylene glycol.

Growing community of inventors

Amsterdam, Netherlands

Frank Haiko Geuzebroek