| 摘要 |
Process for the production of substitute natural gas (SNG) by the methanation of a synthesis gas derived from the 5 gasification of a carbonaceous material together with water gas shift and carbon dioxide removal thereby producing a synthesis gas with a molar ratio (H2-C0 2 )/(CO+C02) greater than 3.00. At the same time a gas with a molar ratio (H2 C0 2 )/(C+C0 2 ) lower than 3.00 is added to the methanation 10 section. The final product (SNG) is of constant high qual ity without excess of carbon dioxide and hydrogen. 211 k' 0;-4- 'J IIG rVP-ak.- |
