脱硫脱醇吸附剂的开发及其在移动床丙烷脱氢装置上的应用  

DEVELOPMENT AND APPLICATION OF ADSORBENT FOR DESULFURIZATION AND DEALCOHOLIZATION IN PROPANE DEHYDROGENATION UNIT

作　　者：隋秀鹏 邓国伟 毛满意 王彩凤 Sui Xiupeng;Deng Guowei;Mao Manyi;Wang Caifeng(Zhejiang Shaoxing Sanjin Petrochemical Co.,Ltd.,Shaoxing,Zhejiang 312000;Hubei Huabang Chemical Co.,Ltd.)

机构地区：[1]浙江绍兴三锦石化有限公司,浙江绍兴312000 [2]湖北华邦化学有限公司

出　　处：《石油炼制与化工》2024年第8期52-57,共6页Petroleum Processing and Petrochemicals

摘　　要：研究了一种可再生的吸附剂,用于丙烷脱氢(PDH)装置原料丙烷中硫化物和含氧化合物的脱除。通过固定床模拟试验,考察了再生次数对吸附剂吸附性能及机械强度的影响。结果表明:吸附剂经过150次再生后,硫吸附保持率为89.4%,甲醇吸附保持率为88.5%,机械强度保持率在83.2%以上。在工业装置实际操作条件下,丙烷脱硫脱醇吸附剂应用效果显著:经过近六年的连续运行后,在入口杂质含量远超平均水平的情况下,原料丙烷中的甲醇和硫质量分数分别降低至1.0μg/g以下,完全满足装置技术要求。脱硫脱醇吸附剂在PDH装置上的成功应用解决了国内丙烷原料无法匹配进口工艺包原料技术要求的难题,为国内PDH装置原料多元化提供了可行路径。A renewable adsorbent for the removal of sulfides and oxygen-containing compounds from propane feedstock in propane dehydrogenation(PDH)unit was studied.The influence of regeneration times on the adsorption performance and mechanical strength of the adsorbent was investigated by a fixed-bed simulation experiment.The results showed that the retention rates of desulfurization,dealcoholization and mechanical strength were 89.4%,88.5%and 83.2%,respectively,after 150 times regeneration.Under actual operating conditions in industrial unit,the effect of propane desulfurization and dealcoholization was significant.After nearly six years of continuous operation,when the inlet impurity content was far above the average level,the mass fraction of methanol and sulfur in the raw propane could be reduced to less than 1.0μg/g,which could meet the technical requirements of the PDH unit.The successful application of adsorbent for desulfurization and dealcoholization in PDH unit has solved the problem that propane raw materials in China could not match the technical requirements of imported process package,and provided a feasible path for the diversification of raw materials for PDH units in China.

关 键 词：丙烷脱氢 脱醇 脱硫 吸附剂 再生 

分 类 号：TQ221.212[化学工程—有机化工] TQ424