摘要
为了集成优化利用石脑油资源，使乙烯裂解和催化重整工艺得到合理的原料调配，运用5A分子筛吸附分离技术将石脑油中的正构烷烃分离。富含非正构烃的吸余油作为优质催化重整原料或高辛烷值汽油调合组分，富含正构烷烃的脱附油作为优质蒸汽裂解制乙烯原料。在工业典型操作条件下，与以石脑油为原料的乙烯裂解工艺相比，气体收率由84．3％增加到90．8％，乙烯收率增加11～14个百分点，三烯总收率增加8～10个百分点。以90万吨／年乙烯装置为例进行了以吸附分离脱附油和石脑油共同作为裂解原料的石脑油部分吸附分离加工方案的经济效益分析。
For integrated optimization and utilization of naphtha resources so as to let ethylene cracking and catalytic reforming process acquire rational raw materials allocation, n-alkane is separated from naphtha by 5 A molecular sieve absorption separation technology, Iso-alkane-rich residuum after absorption is used as high-quality raw materials for catalytic reforming or blend component for high octane number gasoline,n-alkane-rich desorbed oil is used as high-quality raw materials for steam cracking to produce ethylene. In industrial typical operating conditions, compared with ethylene cracking with naphtha as raw materials, gas yield increases from 84. 3% to 90. 8% , ethylene yield increases 11-14 per cent, total yield of three kinds of olefin increases 8-10 per cent. With 900kt/a ethylene cracker as an example, economic benefit analysis of partial absorption separation processing scheme with absorption separation desorbed oil and naphtha as joint raw materials for cracking is given.
出处
《当代石油石化》
CAS
2007年第10期26-29,共4页
Petroleum & Petrochemical Today
