摘要
焦化剩余氨水的主要来源是焦煤中含水和化工分离废水,通过气浮除焦油器和陶瓷管过滤器除油后进行蒸氨处理,将其中的固定铵盐通过补加碱液形成挥发铵盐,然后利用热源将氨从液相中分离出来,通常采用的方式为正压蒸汽汽提蒸氨,直接将低压蒸汽与剩余氨水逆向接触,带走其中的挥发氨,这种方式投资较少、工艺运行稳定、操作简单。近些年来,为了更好的节约能源和降低生产运行成本,各焦化企业分别从蒸氨技术改造入手,利用热泵回收、再沸器等技术,以降低系统运行的蒸汽用量和蒸氨废水处理量,本文主要介绍了正压、负压蒸氨项目不同的工艺路线及特点,并简单对其优缺点进行讨论。
Coking residual ammonia is the main source of coking coal water and chemical separation wastewater,through gas float tar and ceramic tube filter after steam ammonia treatment,the fixed ammonium salt through adding alkali form volatile ammonium salt,and then using heat ammonia from the liquid phase,usually using the way of positive pressure steam steam ammonia,direct low pressure steam and the remaining ammonia reverse contact,take away the volatile ammonia,this way is less investment,stable process operation,simple operation.In recent years,in order to better save energy and reduce production cost,the coking enterprises,respectively,from the steam ammonia technology transformation,using heat pump recovery technology,reduce the system of steam consumption and steam ammonia wastewater treatment,the positive pressure,negative pressure steam ammonia project different routes and characteristics were mainly introduced,and its advantages and disadvantages was simple to discuss.
作者
王兴浩
尹文亮
熊英
WANG Xing-hao;YIN Wen-liang;XIONG Ying(Henan Jinma Energy Co.,Ltd.,Henan Jiyuan 459000,China)
出处
《广州化工》
CAS
2024年第2期33-34,38,共3页
GuangZhou Chemical Industry
关键词
正压蒸氨
负压蒸氨
间接
直接
positive pressure ammonia
negative pressure ammonia
indirect
direct
作者简介
第一作者:王兴浩(1993-),男,中级工程师,主要从事焦化副产品回收。
