摘要
国内某炼厂新建的催化汽油醚化装置采用CDHydro(催化汽油选择性加氢)、CDEthers(催化轻汽油醚化)和ISOMPLUS(碳五烯烃异构化)技术,其工艺流程和自动控制方案和其他汽油醚化技术相比均具有一定的特点。主要介绍了该装置的技术特点和各单元典型的控制方案,包括加氢蒸馏塔顶内回流控制、轻汽油/甲醇比值控制、醚化蒸馏塔补充甲醇控制、塔压及塔切割点的控制。深入理解这些控制方案对于汽油醚化装置的设计、操作和改进都具有重要作用。
The CDTECH etherification technology, including CDHydro （FCC gasoline selective hydrogenation）, CDEthers （light cut naphtha etherification） and ISOMPLUS （C5 olefin isomerization） are introduced to build a new FCC gasoline etherification unit in some refinery. The process flow and control strategy have some special characteristics compared to the other LCN etherification technologies. Process specialty and typical control strategy of the unit is described, including the CDHydro column internal reflux control, the light cut gasoline/methanol ratio control, the methanol control for CD reaction column, the column pressure control and the column cut point control. It is important to understand the process control strategy for the design, operation and improvement of the FCC gasoline etherification unit.
出处
《石油化工自动化》
CAS
2011年第5期36-38,57,共4页
Automation in Petro-chemical Industry
关键词
催化汽油
轻汽油
醚化
自动控制
工艺流程
内回流
FCC gasoline
light cut naphtha
etherification
process control
process flow
internal reflux
