【摘要】 采用组合固定床反应-再生系统和改性HZSM-5分子筛催化剂,开发出利用液化石油气制芳烃工艺(GTA)。该工艺可将液化石油气转化为苯、甲苯和二甲苯等轻质芳烃,而且流程简单,操作稳定,所产混合芳烃不含非芳烃组分,简化了抽提流程,节省了投资,并降低了能耗。4.0万t/a的工业化装置运行结果表明:利用GTA技术能将醚化后的C4组分转化为质量分数56.76%的芳烃,同时还能得到质量分数为23.74%的民用液化气。更多还原

【Abstract】 Liquefied petroleum gas（LPG） can be converted into light aromatics,such as benzene,toluene and xylene by using modified HZSM-5 zeolite catalyst and GTA process which adopts the fixed-bed reaction-regeneration system.The process is feasible,with short flow and stable running.Since no non-aromatic components exist in the GTA products,the aromatic extraction equipment is eliminated in the GTA process.The operating results demonstrated that for a commercial plant with the capacity of 40kt/a,with the feedstock of C₄ after etherified,the yield of light aromatics can be up to 56.76%,and the yield of household LPG can reach 23.74% simultaneously.更多还原