Abstract: The utilization effects of various heat sources in the integrated production of solid ammonium sulfate by evaporative crystallization and flash steam extraction deamination are studied.Under certain conditions,the integrated production of solid ammonium sulfate by evaporative crystallization and flash steam extraction deammoniation is basically consistent with the total steam consumption in direct production process of ammonium sulfate solution.The combination of evaporative crystallization and flash steam extraction deammoniation technology ensures that the energy consumption of the process does not increase while producing solid ammonium sulfate,achieving the goal of energy saving.With the increase of ammonia nitrogen content in wastewater,the overall steam consumption in the system increases,but the amount of steam supplementation decreases.When a certain amount of steam is added,it is not necessary to add steam or even excessive steam can be discharged.
申涛, 郭明, 王晓伟. 热泵闪蒸汽提脱氨生产固体硫酸铵过程的能量利用[J]. 现代化工, 2019, 39(6): 194-196,198.
SHEN Tao, GUO Ming, WANG Xiao-wei. Study on energy utilization in production of solid ammonium sulfate by steam stripping and ammonia removal process of heat pump. Modern Chemical Industry, 2019, 39(6): 194-196,198.