钙法脱硫改为氨法技术的可行性研究及技改建议  

Feasibility Study and Technical Revamp Suggestion of Calcium Desulphurization to Ammonia Desulphurization Technology

作　　者：屈战成 QU Zhan-cheng(Shanxi Shanhua Coal Chemical Industry Group Co.,Ltd.,Weinan 714104,China)

机构地区：[1]陕西陕化煤化工集团有限公司,陕西渭南714104

出　　处：《硫磷设计与粉体工程》2022年第3期14-17,I0001,共5页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：因钙法烟气脱硫技术会产生工业废渣脱硫石膏,且产生CO_(2)废气,不符合低碳环保、循环经济、可再生利用资源的发展战略,故从技术、经济、安全、环保和资源利用等5个方面,分析了将现有钙法脱硫装置改用氨法脱硫技术的可行性,并提出了改造脱硝装置的氨站、在原脱硫吸收塔内改加氨水、利用带式真空过滤机分离硫酸铵溶液中灰泥和新增硫酸铵加工工序等有效措施。Industrial waste residue desulfurization gypsum and CO_(2) emissions are produced in calcium flue gas desulfurization process,which is not in conformity with the development strategies of low carbon environmental protection,circulation economy and renewable resources.The feasibility of ammonia desulphurization technology replacing the existing calcium desulphurization is analyzed from five aspects:technology,economy,security,environmental protection and resource utilization.Effective measures are put forward such as revamping the ammonia station in denitrification unit,adding ammonium hydroxide into the original desulfurization absorption column,separating plaster from ammonium sulfate solution by belt vacuum filter,and introducing ammonium sulfate processing procedure.

关 键 词：烟气脱硫 钙法改氨法 技术经济 安全环保资源利用 可行性研究 技改措施 

分 类 号：X701.3[环境科学与工程—环境工程]