| 摘要 |
The invention is a method for reducing halide content of a synthesis gas stream by mixing a metal compound of potassium oxide, potassium hydroxide, potassium bicarbonate, potassium carbonate, sodium oxide, sodium hydroxide, sodium bicarbonate, or sodium carbonate, with a carbonaceous feed material which contains halide-containing compounds; gasifying the carbonaceous feed material in an entrained flow gasifier under gasifying conditions thus producing a synthesis gas containing hydrogen and carbon monoxide; where the metal compound vaporizes and the vaporized metal compound reacts with the halide from the halide-containing compounds, thus producing a vaporized metal halide; cooling the vaporized metal halide, thus producing solid metal halide particles; passing the synthesis gas stream to a solids removal unit for removing the solid metal halide particles; and recovering the synthesis gas stream substantially free of halide-containing compounds. |
