摘要
进行了炼厂催化干气经变压吸附浓缩及精制除杂后用作乙烯裂解原料的工业实践。结果表明:利用干气作乙烯裂解原料,当其质量分数为总裂解原料的7.44%时,可使乙烯物耗由3.163t/t降低至3.066t/t,能耗由29.45GJ/t下降至29.39GJ/t。精制干气中CO2,CO含量超标及乙烷含量偏高,影响了乙烯装置的运行,但通过采取增大碱洗时新鲜碱液的用量、提高甲烷化反应温度、优化乙烯精馏塔操作条件等措施,可实现乙烯装置的安全稳定运行。
Refinery catalytic dry gas was processed into feedstocks of ethylene cracking by pressure swing adsorption concentration and refining removal of impurities. The results showed that the material consumption of ethylene decreased from 3. 163 t/t to 3. 066 t/t,and the energy consumption of ethylene decreased from 29.45 GJ/t to 29. 39 GJ/t when the mass fraction of dry gas in total ethylene cracking feedstocks was 7.44% . That the contents of CO2 , CO and ethane in refinery dry gas exceeded quality requirement influenced on the process of ethylene production. It was realizable for ethylene equipment to run safely and stable by increasing amount of fresh alkali liquor during alkali wash, increasing the reaction temperature of methanation and optimizing the operation condition of ethylene fractionating tower.
出处
《石化技术与应用》
CAS
2006年第5期378-381,共4页
Petrochemical Technology & Application
关键词
催化干气
乙烯
变压吸附
精制
炼化一体化
catalytic dry gas
ethylene
pressure swing adsorption
refining
refining-chemical intergration
作者简介
王建（1965-）,男,天津人,工程师.曾从事乙烯、芳烃生产技术管理工作,现从事化工项目规划及设计管理工作.已发表论文11篇.
