SGEB气相法干气制乙苯技术的工业应用

中海油东方石化有限责任公司采用气相法干气制乙苯(SGEB)技术，新建一套120 kt/a乙苯装置，该技术采用烷基化及烷基转移催化剂、五段层式绝热固定床烷基化反应器、催化裂解干气脱丙烯系统、丙苯塔和脱非芳塔等，使得工艺流程简化，投资省，能耗低。装置以催化裂解干气和外购苯为原料，产品乙苯纯度（w）为99.84%，二甲苯质量分数为0.06%，乙烯转化率为98.94%，二乙苯转化率为74.70%，具有较好的经济效益。

INDUSTRIAL APPLICATION OF GAS-PHASE ALKYLATION TECHNOLOGY SGEB FOR DRY GAS TO ETHYLBENZENE

The gas-phase dry gas to ethylbenzene technology (SGEB) was adopted in a new 120 kt/a ethylbenzene unit in CNOOC Dongfang Petrochemical Co.,Ltd. The technology contains alkylation and transalkylation catalysts, five-stage adiabatic fixed-bed alkylation reactor, the FCC dry gas depropylene system, the installation of the propylbenzene column and the non-aromatic column etc., having the advantages of simplified process flow, investment-saving and low energy consumption. The unit uses FCC dry gas and purchased benzene as raw materials. The purity of ethylbenzene is 99.84%, the content of xylene is 0.06%, the conversion rate of ethylene is 98.94%, the conversion rate of diethylbenzene is 74.7%,and the economic benefit is very good.