先进煤化工装置正在逐步取代固定床技术,但对于合成氨、尿素装置来说生产线较长,全部退出则给企业造成的损失较大。为弥补损失,在气头替代的前提下,将后续合成氨、尿素装置进行利用会在一定时间内给企业带来较大的效益。在先进煤气化技术中,氨合成装置是整个合成氨装置产能中的瓶颈所在,汽化、净化装置仍存在一定的产能无法释放,为此将先进煤化工技术中汽化、净化多余的产能结合固定床后续装置加以改造利用,在投资增加较小的情况下,实现了合成氨、尿素的产能增加。

The advanced coal chemical plant is gradually replacing the fixed bed technology.As for synthetic ammonia and urea plants with longer production line,their total withdrawal will cause huge loss to the enterprises.In order to make up for the loss,under the precondition of air head substitution,the subsequent utilization of synthetic ammonia and urea plants will bring benefits to the enterprises in a certain period of time.In the advanced coal gasification technologies,ammonia synthesis unit is often the bottleneck in the production capacity of the whole ammonia plant,and there is still a certain capacity of the gasification and purification units that cannot be utilized.Therefore,the excess gasification and purification capacity in the advanced coal chemical industry is combined with the fixed bed follow-up units to transform and utilize to achieve the production of synthetic ammonia and urea at a small increase in investment.

张本峰(1988-),男,博士生,高级工程师,从事煤化工技术研究及项目管理工作,15236606198@163.com;吴培(1990-),女,硕士,高级工程师,从事煤化工项目管理工作,通讯联系人,15225966165@163.com。