Henan Gas (Group) Co., Ltd. Yima Gasification plant Phase-II desulfurization 1#, 2# retrofit project of 130T/H×2 boiler is designed to one absorber for two boilers. The project started construction on 15th April , 2017, and was put into operation on 4th September , 2017. The operation are stable, the outlet flue gas emissionis good, and the emission meets the standard. The reliability test was completed on 23rd October , 2017 and accepted by supervisor and owner on 31st October , 2017. Currently, two sets of desulfurization in the phase-I and the phase-II are operating well, and the project department continues to put in the construction of the phase-III desulfurization retrofit project.