炼油技术与工程 ›› 2021, Vol. 51 ›› Issue (8): 28-31.

• 加工工艺 • 上一篇    下一篇

制氢转化炉烟气NOx排放控制优化研究

陈小龙1, 姜景杰1, 彭勇1, 刘书朋2, 简元超1, 吕艳芳2   

  1. 1.成都艾尔普气体产品有限公司,四川省成都市 611930;
    2.中石化洛阳工程有限公司,河南省洛阳市 471003
  • 出版日期:2021-08-15 发布日期:2021-11-15
  • 作者简介:陈小龙,工程师,大学本科,2012年毕业于辽宁石油化工大学化学工程与工艺专业,目前从事合成气制氢装置的技术管理工作。联系电话:18181439075,E-mail:424131793@qq.com。

Research on optimization of NOx emission control in hydrogen producing conversion furnace flue gas

Chen Xiaolong1, Jiang JingJie1, Peng Yong1, Liu Shupeng2, Jian Yuanchao1   

  1. 1. ChengDu Air＆ Gas Products Co., Ltd., Chengdu, Sichuan 611930;
    2. SINOPEC Luoyang Engineering Co., Ltd., Luoyang, Henan 471003
  • Online:2021-08-15 Published:2021-11-15

PDF

摘要： 介绍了工业炉烟气常用脱硝工艺。对某公司制氢装置转化炉选择性脱硝系统在生产运行中出现的问题进行了分析,并提出了工艺优化方案以及应对策略。通过优化氨水罐底原料线结构形式、优化SCR烟气脱硝系统氨气分布孔径、优化燃料气系统、增加低压蒸汽吹扫管线、提高氨水品质、提高氨水浓度等一系列措施,有效降低了装置排放的NOx含量,降低了装置生产运行成本。

关键词: 制氢转化炉, 烟气, NOx, SCR, 氨水质量, 氨分布器, 蒸汽吹扫

Abstract: It introduces the common denitrification process of industrial furnace flue gas, and analyzes the problems during the operation of the selective denitrification system of the reformer in a company's hydrogen production unit. Based on the result, the process optimization scheme and countermeasures are put forward. By optimizing the structure of the feedstock line at the bottom of ammonia tank, optimizing the ammonia distribution aperture of SCR Flue gas denitration system, optimizing the fuel gas system, increasing the low-pressure steam purging pipeline, improving the quality of ammonia, increasing the ammonia concentration and a series of measures, the NOx content discharged from the device is effectively reduced, and the production and operation cost of the device is also reduced.

Key words: hydrogen production unit, flue gas, NOx, SCR, ammonia quality, ammonia distributor, steam purging