Feasibility of Separating Carbon Monoxide from Producer Gas.

摘要

The report sets forth an evaluation of Tenneco's COSORB process as it might be applied to coal gasification,considering the production of large amounts of CO for use as a medium-Btu gas. The analysis compares (a) cost of producing pure CO from producer gas with (b) the cost of producing CO/H2mixture from coal by gasification. In the first case coal is gasified with air,and CO is extracted from the reaction products with COSORB solvent (proprietary). In the second case,the CO/H2is generated directly by the gasification of coal with oxygen. The study measures the value of the carbon monoxide only in terms of heating value,not in terms of potential value as a chemical feedstock. The costs are developed from analysis of the plants required for production. Three variations of the producer gas plant are considered. The conclusion is that CO produced by extraction from producer gas is at least 50percent more expensive as a fuel than the CO/H2mixture.