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Zhongke Refinery's mixed xylene is obtained from catalytically reformed gasoline by fractional distillation of aromatic hydrocarbons, and mainly provides raw materials for PX units
The reforming area organized the three majors of equipment, safety and technology and the technical backbone of the team to set up a quality optimization research team to conduct in-depth optimization to improve the quality and yield of reformed mixed xylenes, and to summarize and report the data of the device on a daily basis
The reforming area organized the three majors of equipment, safety and technology and the technical backbone of the team to set up a quality optimization research team to conduct in-depth optimization to improve the quality and yield of reformed mixed xylenes, and to summarize and report the data of the device on a daily basis
.
On the premise of ensuring the gasoline blending is qualified, they operate the non-aromatic index card edge, set the internal control index of the device, and improve the xylene yield as much as possible; according to the nature of the raw material, they adjust the temperature of the sensitive plate of the reformate fractionation tower, improve the fractionation accuracy, and maximize the yield of xylene.
It is possible to reduce overhead losses of mixed xylenes from the reformate fractionation column
.
Since the feed was started on December 31, 2020, a total of 273,000 tons of mixed xylenes have been produced, and the yield has remained above 26.
5% for a long time, which is higher than the design yield
.
