壳牌煤气化工艺流程中合成气反吹系统方案改造的探讨

Inquiry into Renovation Plan for Syngas Reverse Blowing System in Shell Coal Gasification Process

针对壳牌煤气化工艺流程中的合成气反吹系统进行方案改造,反吹介质可由洗涤后的粗合成气改为高温高压氮气。改造后,出气化装置的合成气组份可以满足下游装置的工艺要求,同时又可以节省大量的工程投资。从工艺技术和经济技术两方面考虑,此改造方案切实可行。

In line with the renovation plan for the syngas reverse blowing system in the Shell coal gasification process, the reverse blowing medium may be changed from the scrubbed crude syngas to high-temperature , high-pressure nitrogen. After renovation, the composition of the syngas from the gasifier will satisfy the process requirements of the downstream units, and also the investment in the project will be decreased considerably. In consideration of both process technology and economic technology, this renovation plan is realistic and feasible.