生物质气化洗涤废水回收利用工艺探讨  

Discussion on the Recycling Process of Biomass Gasification Washing Effluent

作　　者：石闯 张磊 王丽娜 王靓 王亚杰 SHI Chuang;ZHANG Lei;WANG Li-na;WANG Liang;WANG Ya-jie(Sinopec Nanjing Engineering Co.,Ltd.,Nanjing 210049,China)

机构地区：[1]中石化南京工程有限公司,江苏南京210049

出　　处：《硫磷设计与粉体工程》2024年第5期5-8,I0001,共5页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：生物质气化过程中会产生大量的含氨废水,但传统蒸氨汽提工艺难以适应高浓度NH 3-N废水的工况,必须对传统工艺进行优化。以某甲醇装置合成气洗涤废水的蒸氨汽提工艺为例,通过软件ASPEN PLUS模拟蒸氨汽提工艺流程,并对其设计参数进行优化。模拟结果显示:采用优化后的工艺流程,出水质量及副产品纯度明显提高,浓氨水w(NH_(3))达到了22%。A large amount of ammonia-containing effluent is generated in the process of biomass gasification,however,it is difficult for the conventional ammonia stripping process to adapt to the working conditions of high-concentration NH 3-N effluent,hence the conventional process must be optimized.Taking the distilled ammonia stripping process of syngas washing effluent of a methanol plant as an example,the ammonia stripping process is simulated by the software ASPEN PLUS,and the design parameters are optimized.The simulation findings show that the effluent quality and by-product purity are significantly improved by adopting the optimized process flow,and w(NH_(3))in the concentrated ammonia reaches 22%.

关 键 词：生物质气化 废水回收 蒸氨汽提工艺 模拟计算 理论塔板数 

分 类 号：X703.1[环境科学与工程—环境工程]