油田轻烃加氢生产低芳烃含量溶剂的两种工艺比较  

COMPARISON OF TWO PROCESSES FOR HYDROGENATION OF LIGHT HYDROCARBONS TO LOW AROMATIC SOLVENT

作　　者：王成 姚劲 乔恩 唐明兴[2] 

机构地区：[1]中国石油工程建设公司新疆设计分公司,乌鲁木齐830019 [2]中国科学院山西煤炭化学研究所

出　　处：《石油炼制与化工》2017年第10期60-65,共6页Petroleum Processing and Petrochemicals

基　　金：国家自然科学基金青年科学基金项目(21603256)

摘　　要：以硫质量分数分别为106μg?g和25μg?g的两种油田轻烃作为原料,比较两种加氢工艺的适用性。工艺Ⅰ采用CoMo?Al2O3加氢脱硫-中温ZnO吸附-Ni?Al2O3加氢脱芳烃的组合工艺;工艺Ⅱ采用Ni?ZnO吸附脱硫串联Ni?Al2O3加氢脱芳烃的组合工艺。结果表明:对于工艺Ⅰ,两种原料在反应初期产品溴指数和芳烃含量均较低,但反应400h和550h后,产物芳烃质量分数大于0.1%;对于工艺Ⅱ,原料硫质量分数为25μg?g时,在1 000h内产品溴指数稳定在16mgBr?(100g)以下,芳烃质量分数稳定在0.09%以下。因此,工艺Ⅱ适合用于硫质量分数低于25μg?g原料的深度加氢生产超低芳烃含量溶剂。Two kinds of combined hydrogenation processes（CoMo/Al2O3 desulfurization ＋ mid tem-perature ZnO ＋ Ni/Al2O3 dearomatization process Ⅰ and Ni/ZnO adsorption ＋ Ni/Al2O3 process Ⅱ ）were compared to investigate which one is suitable for producing vegetable oil extraction solvent. Thetest feeds were two light hydrocarbons with S content of 106 μg/g and 25μg /g ,respectively. The resultsshowed that the bromine indexes and the contents of aromatics are very low in initial reaction stage ofprocess Ⅰ for the two feeds. But 400 h and 550 h later,the content of aromatics rises up and all exceeds0. 1 %. For process Ⅱ when the sulfur content in feed is 25μg /g,the bromine index of the product main-tains below 16 mgBr/ （100 g） , and the content of aromatics is less than 0.09%, indicating that process His suitable for producing vegetable oil extraction solvent from the low S content feed.

关 键 词：加氢 深度脱硫 加氢脱芳烃 植物油抽提溶剂 

分 类 号：TE624[石油与天然气工程—油气加工工程]