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两段提升管重油催化裂化(Ⅰ型)新工艺的初步研究
Authors
何长征
山红红
+4 more
张建芳
张锁江
杜峰
赵威
Publication date
1 January 2004
Publisher
Abstract
针对目前催化裂化提升管反应器后半段催化剂性能严重下降以及产品分布不太合理的状况,提出了采用两段提升管催化裂化新工艺技术取代常规的单段提升管催化裂化工艺技术.该工艺的突出特征是催化剂接力、分段反应、大剂油比和短反应时间.在对新工艺进行理论分析的基础上,以大庆蜡油掺兑65%渣油为原料,采用ZC-7300催化剂,在小型提升管催化裂化装置上进行了一系列实验,考察两段提升管催化裂化(Ⅰ型)新工艺的可行性和先进性.实验结果表明:与常规单段工艺相比,在相近转化率下,两段柴油产率提高6~8个百分点,轻油产率提高1~2个百分点;汽油烯烃含量减少,辛烷值提高,产品质量提高.新工艺在提高柴油收率及改善产品分布和产品质量方面具有明显优势
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Last time updated on 11/04/2021