초록 ▼

A synthesis gas obtained by steam reforming is sent to a pressure swing adsorption unit (2) which separates a CO/H.sub.2 mixture, as a production gas, from the other constituents. The CO/H.sub.2 mixture is sent to a unit (3) for at least partially purifying CO, for example a permeation unit, which p

A synthesis gas obtained by steam reforming is sent to a pressure swing adsorption unit (2) which separates a CO/H.sub.2 mixture, as a production gas, from the other constituents. The CO/H.sub.2 mixture is sent to a unit (3) for at least partially purifying CO, for example a permeation unit, which produces under pressure the CO with high purity or an H.sub.2 /CO mixture with an adjusted CO content, containing very little impurities.

대표청구항 ▼

[ What is claimed is:] [1.]1. A process for the production of carbon monoxide (CO) from a supply gas containing essentially carbon monoxide, hydrogen and other constituents including carbon dioxide, methane and water, which comprises:sending the supply gas to a pressure swing adsorption (PSA) unit w

[ What is claimed is:] [1.]1. A process for the production of carbon monoxide (CO) from a supply gas containing essentially carbon monoxide, hydrogen and other constituents including carbon dioxide, methane and water, which comprises:sending the supply gas to a pressure swing adsorption (PSA) unit which contains an adsorbent having a low affinity for hydrogen and carbon monoxide and a high affinity for said other constituents to obtain a production gas consisting essentially of a mixture of carbon monoxide and hydrogen; andsending the production gas from the pressure swing adsorption unit to a permeation unit for the purification of the carbon monoxide; the permeation unit having a permeate outlet and a non-permeate outlet and being provided with membranes having a high carbon monoxide/hydrogen selectivity to supply at the non-permeate outlet pure carbon monoxide, and at the permeate outlet low pressure residual hydrogen containing no more than 3% carbon monoxide.