摘要
分析了甲苯歧化及烷基转移催化剂HLD-001、HAT-099在工业应用中使用不同来源(变压吸附、乙烯和重整装置)氢气对催化剂性能的影响。结果表明:使用HLD-001催化剂期间,补充氢由乙烯装置氢气更换为重整装置氢气后,反应温度由362℃提升至378℃,总转化率下降0.23百分点,C 10芳烃转化率下降6.83百分点;使用HAT-099催化剂期间,补充氢采用重整装置氢气后,反应温度由356℃提升至378℃,总转化率下降1.57百分点,C 10芳烃转化率下降4.27百分点,催化剂性能明显下降,重整装置氢气中一氧化碳对催化剂的性能影响较大。
The effects of hydrogen from PSA,ethylene unit and reforming unit on the performance of HLD-001 and HAT-099 catalyst for toluene disproportionation and transalkylation were analyzed.The results indicated that the reaction temperatures for catalyst HLD-001 increased from 362℃ to 378℃after using hydrogen from reforming unit,replacing hydrogen from ethylene unit,the total conversion ratio reduced by 0.23 percentage point,and the conversion ratio of C 10 aromatics reduced by 6.83 percentage points;after using hydrogen from reforming unit,the reaction temperature for catalyst HAT-099 increased from 356℃ to 378℃,the total conversion ratio reduced by 1.57 percentage points and the conversion ratio of C 10 aromatics reduced by 4.27 percentage points.It is concluded that the CO in the hydrogen from reforming unit has a great influence on the catalyst activity.
作者
李世伟
Li Shiwei(SINOPEC Shanghai Petrochemical Co.Ltd.,Shanghai 200540)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2019年第10期62-66,共5页
Petroleum Processing and Petrochemicals
关键词
甲苯歧化
烷基转移
催化剂
一氧化碳
氢气
二甲苯
toluene disproportionation
transalkylation
catalyst
CO
hydrogen
xylene
