加氢法与生物法联合脱除催化柴油有机硫探索实验  

Organic sulfur removal from catalytic diesel oil by hydrodesulfurization combined with biodesulfurization

作　　者：方新湘 张有林 罗来龙 许平[2] 陈永立 周华 海丽 

机构地区：[1]中国石油克拉玛依石化分公司炼油化工研究院,新疆克拉玛依834000 [2]山东大学生命科学学院,山东济南250100

出　　处：《现代化工》2006年第z2期234-238,共5页Modern Chemical Industry

摘　　要：由于存在空间位阻,二苯并噻吩(DBT)及其烷基化衍生物(Cx-DBT)中的硫原子很难与加氢催化剂接触。因此,作为柴油脱硫的主要工艺,加氢催化对于柴油中的主要有机硫化物DBT和Cx-DBT的脱除率比较低,难以实现深度脱硫。针对硫质量分数为3 358μg/g的催化柴油,采用加氢脱硫与生物脱硫相结合的办法进行处理后,催化柴油的硫质量分数降低到20μg/g以下,使用气相色谱-原子发射仪对柴油脱硫前后的硫分布进行检测,发现2种工艺的结合能有效地脱除催化柴油组分中绝大多数的DBT和Cx-DBT,显示出良好的应用前景。It is difficult to make the sulfur of dibenzothiophene(DBT) and C_x-DBT contact with hydrogenation catalyst because of the existence of steric hindrance.Therefore,as the main technological process of desulfurization of diesel oil,the ability of catalytic hydrogenation(HDS) to remove the main organic sulfur compounds in diesel oil such as DBT and C_x-DBT is relatively low.The study aimed at the treatment of catalytic diesel oil whose sulfur content was 3 358 μg/g by a process that combined HDS with biodesulfurization(BDS).The results showed that the sulfur content of catalytic diesel oil was less than 20 μg/g;further using gas chromatography with atomic emission detector(GC-AED) to detect the distribution of sulfur compounds in diesel oil before and after desulfurization,it indicated that the technology that combined HDS with BDS could remove most of DBT and C_x-DBT in catalytic diesel oil effectively and showed favorable applied foreground.

关 键 词：催化柴油 加氢脱硫 生物脱硫 二苯并噻吩 

分 类 号：TE626.24[石油与天然气工程—油气加工工程] TQ453.26[化学工程—农药化工]