摘要
液相循环加氢(SRH)工艺以油品中的溶解氢为加氢反应的氢源,以油品中氢浓度的梯度变化为反应推动力,采用液相填充床反应器取代传统加氢反应器,取消氢气循环压缩机,减少了投资和能量消耗。某柴油液相循环加氢装置设计采用SRH工艺,并以直馏柴油为原料,采用FHUDS-2催化剂,生产硫质量分数小于50μg/g精制柴油和部分石脑油。工业装置运行结果表明,SRH技术可生产硫质量分数小于50μg/g清洁柴油,适当提高反应温度还可以生产硫质量分数小于10μg/g清洁柴油。与常规柴油加氢装置相比,SRH装置投资节省30%以上,装置综合能耗降低30%左右;SRH反应器温升低,催化剂寿命长,目的产品收率高,但对原料要求较苛刻,难以处理二次加工油。精制效果和经济性的矛盾性需要在设计时统一考虑。
In Liquid-phase Cycling Hydrogenation Process （SRH）, the dissolved hydrogen in oil is used as the reactant souree and the hydrogen concentration gradient serves as the reaction kinetics. Meanwhile. the liquid phrase packed-bed reactor is installed instead of the conventional hydrogenation reactor. The recycle hy- drogen compressor is eliminated, which reduces the capital investment and energy consumption. One Liquid- phase Cycling Hydrogenation Process （SRH） unit has successfully produced refined diesel oil and part of gas- oline with sulfur lower than 50 μg/g from straight-run diesel feed with FHUDS-2 catalyst. The commercial op- eration demonstrates that the SRH process can produces clean diesel with sulfur less than 50 μg/g, and clean diesel with sulfur lower than 10 μg/g can also be produced by properly raising the reactor temperature. As compared with the conventional hydrotreating processes, the capital investment of SRH process is over 30% lower and total energy consumption of the unit is reduced by about 30% ; In addition, the SRH reactor temper- ature rise is low, the catalyst life is long, and the yields of objective products are high. However this process has strict requirements on feed specifications, and it is difficult to treat downstream feedstocks. The conflicts between the refining efficiency and the economic benefits need to be carefully considered in engineeringdesign.
出处
《炼油技术与工程》
CAS
2015年第10期5-8,共4页
Petroleum Refinery Engineering
关键词
液相循环加氢
溶解氢
工业应用
硫含量
清洁柴油
liquid-phase cycling hydrogenation process, dissolved hydrogen, commercial application,sulfur content, clean diesel
