| 摘要 |
The invention relates to a process and an apparatus for the regenerative desulfurization of process gases by means of a recycle mass. In the process and apparatus, the sulfur-containing gases are contacted with a particulate sorbent material forming a fluidized bed and conveyed together with the sorbent material through a reaction zone to bind the sulfur to the sorbent, and the sulfur-bearing sorbent is separated from the process gas which is conveyed into further processing, whereafter the sulfur-bearing sorbent is conveyed into regeneration to separate the sulfur from the sorbent, the sulfur separated from the sorbent is conveyed into further processing, and the sorbent freed of sulfur is returned into contact with the process gas. The invention is characterized in that the sulfur-bearing sorbent which has been separated from the process gas is cooled in a return duct prior to being conveyed into regeneration for regulating the temperature of both the recycle mass and the reactor. (Figure 1) |
