吸附法燃油超深度脱硫的研究进展  

Progresses in ultra-deep desulfurization of fuel oil through adsorption

作　　者：张伟[1] 李鑫[1,2] 童靖予 胡雨[1] 李翠清[1] 

机构地区：[1]北京石油化工学院化学工程学院,北京102617 [2]北京化工大学化学工程学院,北京100029

出　　处：《石油化工》2016年第11期1396-1402,共7页Petrochemical Technology

基　　金：北京市优秀人才培养项目(2014000020124G087);北京市大学生科研训练项目(2016J00077)

摘　　要：传统的加氢脱硫工艺能耗高且难以超深度脱硫,而吸附脱硫成本相对较低,可超深度脱硫。综述了吸附法燃油超深度脱硫的研究进展。吸附脱硫技术分为物理吸附脱硫和反应吸附脱硫。物理吸附脱硫技术存在的关键问题是,燃油中相对大量的芳烃和烯烃等组分会与有机硫化物形成强烈的竞争吸附,导致吸附剂脱硫选择性及脱硫量较低;反应吸附脱硫技术由于在吸附剂表面将有机硫转化成了其他形式的更易吸附的硫化物,然后再吸附脱除,因而吸附脱硫选择性较高。目前,还原型反应吸附脱硫技术S-Zorb工艺已投产,而近年来发展迅速的氧化型反应吸附脱硫技术由于可在常温常压下进行,且不消耗氢气,极具应用前景。The conventional hydrodesulfurization process was not only costly, but also difficult for the ultra-deep desulfurization of fuel oil. In recent years, adsorptive desulfurization was paid more attention due to its low cost and the big possibility for the ultra-deep desulfurization. Progresses in the ultra-deep desulfurization of fuel oil through adsorption were reviewed in this paper. The key problems for the desulfurization through physical adsorption were the low adsorptive selectivity and the low adsorptive capacity for organo-sulfur compounds due to the strong competitive adsorption between trace amount of organo-sulfur compounds and a relatively large amount of aromatics, alkenes and other components in the fuel oil. The desulfurization through reactive adsorption had high adsorption selectivity to organo-sulfur compounds because the organo-sulfur compounds were converted to other sulfur species which could be adsorbed more easily on the adsorbents. To date, the desulfurization through reductive reactive adsorption （ S-Zorb process） had been applied commercial, while the desulfurization through oxidative reactive adsorption was more promising process because the operation could be conducted under ambient temperature and pressure without hydrogen.

关 键 词：脱硫 反应吸附 物理吸附 燃油 有机硫 

分 类 号：TQ028.3[化学工程]