摘要
介绍了上海石油化工研究院研制的GS-HA高效低水油比乙苯脱氢制苯乙烯催化剂的工业试验情况.通过连续72 h的标定,该催化剂能够达到技术协议要求。GS-HA的堆积密度为1.45 kg/L,而原催化剂GS-11的堆积密度为1.38 kg/L,由于堆积密度比大,GS-HA总填装量比GS-11多3 t,但是脱氢反应器的总压力降并没有太大变化,对反应器压力差基本没有影响。GS-HA的应用,使压缩机蒸汽用量减少了2.2 t/h,单此一项就降低能耗853.27MJ/t,有效地降低了苯乙烯单位产品综合能耗,尾气压缩机入口压力由原来的-0.064 MPa降至-0.071 MPa,有效地降低了压缩机的负荷,解决了压缩机出口温度长期过高的问题.但是低水油比必须保持高的反应温度,使得炉膛操作弹性减小,抗工艺波动能力减小。
The commercial demonstration of high-efficiency ethyl benzene dehydrogenation catalyst GS- HA of low water ratio developed by Shanghai Research Institute of Petrochemical Technology is introduced. The 72 hour continuous performance tests confirm that that catalyst can meet the requirements in technical agreement. The dumping density of GS-HA catalyst is 1.45 kg/L, whereas, the dumping density of original GS-11 catalyst is 1.38 kg/L. As the dumping density is higher than that of original catalyst, the total loading of GS-HA catalyst is 3 tons higher than that of GS-11 catalyst. But there is little change in the total pressure drop of the dehydrogenation reactor, and there is no impact on the differential pressure of the reactor. The application of othyl benzene dehydrogenation catalyst GS-HA has reduced the steam consumption of the compressor by 2.2 tons per hour, which is equivalent to 853.27 MJ/t. As the result, the energy consumption per ton of styrene is lowered. The inlet pressure of exhaust gas compressor is lowered from 36 MPa to 29 MPa, which has effectively reduced the load of compressor and solved the problem that the compressor＇ s excessive outlet temperature was too high for a long time. But a high reaction temperature must be maintained for low water ratio, which has reduced the operation elasticity of furnace chamber and resistance to process fluctuation.
出处
《炼油技术与工程》
CAS
2014年第3期49-52,共4页
Petroleum Refinery Engineering
关键词
苯乙烯
乙苯脱氢
催化剂
工业应用
styrene, ethyl benzene dehydrogenation, catalyst, commercial application
