石油化工高等学校学报
石油化工高等學校學報
석유화공고등학교학보
JOURNAL OF PETROCHEMICAL UNIVERSITIES
2015年
4期
22-26
,共5页
张云桐%岳琳%王嗣钰%陈文艺%王吉林
張雲桐%嶽琳%王嗣鈺%陳文藝%王吉林
장운동%악림%왕사옥%진문예%왕길림
乙烯裂解燃料油%组成%焦化中试%掺炼比
乙烯裂解燃料油%組成%焦化中試%摻煉比
을희렬해연료유%조성%초화중시%참련비
Ethylene cracking tar%Composition%Delayed coke simulation test%Doping ratio
对乙烯裂解燃料油进行了基本性质和四组分分析，并采用 n-d-M 法进行了结构组成分析，结果表明，乙烯裂解燃料油中芳烃、胶质和沥青质含量较高。同时，在焦化中试装置上，考察了常压、500℃条件下乙烯裂解燃料油的焦化产物分布，以及在混合进料中掺炼比对产物分布和性质的影响。结果表明，随着乙烯裂解燃料油掺炼比的增加，液体产物中汽油和蜡油馏分收率减少，而柴油馏分和焦炭收率增加。与工业生产装置相比，在乙烯裂解燃料油掺炼比为20%时，所得汽油馏分密度变化不大，硫含量和实际胶质含量略有增加；中间馏分(200~350℃)的初馏点与干点变化不大，但密度有所增大，实际胶质含量下降；石油焦中的挥发分和灰分含量增加，水分和硫含量明显下降。说明掺炼20%乙烯裂解燃料油，对焦化所得产物的性质影响不大。
對乙烯裂解燃料油進行瞭基本性質和四組分分析，併採用 n-d-M 法進行瞭結構組成分析，結果錶明，乙烯裂解燃料油中芳烴、膠質和瀝青質含量較高。同時，在焦化中試裝置上，攷察瞭常壓、500℃條件下乙烯裂解燃料油的焦化產物分佈，以及在混閤進料中摻煉比對產物分佈和性質的影響。結果錶明，隨著乙烯裂解燃料油摻煉比的增加，液體產物中汽油和蠟油餾分收率減少，而柴油餾分和焦炭收率增加。與工業生產裝置相比，在乙烯裂解燃料油摻煉比為20%時，所得汽油餾分密度變化不大，硫含量和實際膠質含量略有增加；中間餾分(200~350℃)的初餾點與榦點變化不大，但密度有所增大，實際膠質含量下降；石油焦中的揮髮分和灰分含量增加，水分和硫含量明顯下降。說明摻煉20%乙烯裂解燃料油，對焦化所得產物的性質影響不大。
대을희렬해연료유진행료기본성질화사조분분석，병채용 n-d-M 법진행료결구조성분석，결과표명，을희렬해연료유중방경、효질화력청질함량교고。동시，재초화중시장치상，고찰료상압、500℃조건하을희렬해연료유적초화산물분포，이급재혼합진료중참련비대산물분포화성질적영향。결과표명，수착을희렬해연료유참련비적증가，액체산물중기유화사유류분수솔감소，이시유류분화초탄수솔증가。여공업생산장치상비，재을희렬해연료유참련비위20%시，소득기유류분밀도변화불대，류함량화실제효질함량략유증가；중간류분(200~350℃)적초류점여간점변화불대，단밀도유소증대，실제효질함량하강；석유초중적휘발분화회분함량증가，수분화류함량명현하강。설명참련20%을희렬해연료유，대초화소득산물적성질영향불대。
The property and composition of ethylene cracking tar were investigated by four component analyses and the method of n-d-M.The results were shown that amount of the aromatic hydrocarbon,colloid and asphaltene was higher in the ethylene cracking tar.On the other hand,the delayed coke simulation test was carried on the self-made apparatus based on the ethylene cracking tar as materials or doping different ratio of the ethylene cracking tar into the coking materials as material under the conditions was that the 500 ℃ and normal atmosphere.The results showed that the fraction of gasoline and wax oil was decreased,but the fraction of diesel oil and coke was increased under the doping ratio of ethylene cracking tar in coke material was increased.Compared with the industrial production device,under the doping ratio of ethylene cracking tar was 20%,the density of gasoline was nearly not changed,the fraction of sulfur and actual colloid were increased slightly,the initial boiling point and dry point of the middle distillate (200 ~350 ℃)was nearly not changed,however the density of the middle distillate (200~350 ℃)was increased,but the actual colloid was decreased.As for the coke,the fraction of volatile and ash was increased,but the fraction of water and sulfur was decreased apparent.The result mentioned above showed that the doping ratio of ethylene cracking tar was 20% will not affect apparently the production of the delayed coking.
