Abstract: A pretreatment process,which includes reducing hardness by flocculation and sedimentation with alkali solution,recycling ammonia water by stripping,and recovering spent heat by stages from ash water,is introduced.Actual operation situation for the unit is analyzed and optimized in order to achieve a long-term steady operation.
冯亮杰. 大型水煤浆气化高氨氮灰水预处理技术探讨[J]. 现代化工, 2021, 41(3): 218-221.
FENG Liang-jie. Discussion of pretreatment technology for high ammoniacal nitrogen ash water generated by large scale coal slurry gasification. Modern Chemical Industry, 2021, 41(3): 218-221.