炼油厂低硫MTBE生产技术的工业应用

摘要

The paper described application of the combined technology of “deep desulfu-rization of liquefied hydrocarbon” and “redistillation of MTBE” to reduce the sulfur content in MTBE product in 250 kt/a desulfidation unit for liquefied petroleum gas .After the technical renovation, the goal of total sulfur content in MTBE less than 10μg/g was achieved, running of the unit of mercaptan removal for liquefied hydrocarbon was optimized such as reduction on ener-gy consumption ,alkali consumption and discharge of the alkali residue , improvement on quality of liquid hydrocarbon.The application results after the reform showed that sulfur content in MTBE could be stabilized below 10μg/g, which met requirements of harmonic Beijing standard V gas-oline.The overall running costs of the unit for desulfidation for MTBE and the unit of mercaptan removal for liquefied hydrocarbon were reduced greatly .%简述250 kt／a液化气脱硫装置采用“液态烃深度脱硫”和“MTBE 再蒸馏”组合技术降低 MTBE 产品硫含量的应用情况。改造后应用结果表明，MTBE硫含量能够稳定控制在10μg／g以下，满足调合京标Ⅴ汽油的要求，而且液态烃脱硫醇单元运行得到优化，能耗降低、碱耗降低、碱渣排放减少，精制液态烃质量得到提高。 MTBE脱硫单元和液态烃脱硫醇单元综合运行费用不但没有增加，而且大幅降低。