原位苛化技术的发展及展望  

Development and Overlook of In-Situ Causticizing Technology

作　　者：徐永建[1] 宁宇震 岳小鹏[1] 章伟鹏 张鼎军 

机构地区：[1]陕西科技大学轻工与能源学院陕西省造纸技术及特种纸品开发重点实验室,陕西西安710021 [2]贵州赤天化集团纸业股份有限公司,贵州赤水564707

出　　处：《纸和造纸》2015年第9期82-86,共5页Paper and Paper Making

基　　金：国家十二五科技支撑计划项目(2012BAD23B02);国家自然科学基金(20876092);陕西科技大学学术带头人团队基金项目(2013XSD25)

摘　　要：本文介绍原位苛化技术的产生背景和发展历程。原位苛化技术是在碱回收炉中直接将碳酸钠脱除二氧化碳形成氢氧化钠的新型苛化技术,被认为极具有取代传统苛化技术的价值。原位苛化技术包括自动苛化技术和直接苛化技术,目前认为最有发展前途的自动苛化剂和直接苛化剂分别是硼砂和二氧化钛。未来,原位苛化技术可能与黑液气化技术结合,在非木材纤维原料比重较大的中国实现工业化;也可能是原位苛化技术与黑液除硅技术结合,在实现原位苛化的同时达到协同除硅的目的,成为解决"硅干扰"问题的一个重要突破口。The in-situ causticizing technology is a new causticizing technology of converting molten Na2CO3 directly to NaOH and CO2 in the alkali recovery boiler, which having the value of replace the conventional causticizing technology. Autocausticizing technology and direct causticizing technology were the two type of in-situ causticizing technology. This paper introduce the background, develop course of the in-situ causticization, Borax was considered as one of the most development prospects in autocausticizing agents as were as titanium dioxide in direct causticizing agents. In the future, the in-situ causticization may combine with black liquor gasification technology, realize commercial in China which having a highly percentage of non-wood fibrous materials; the in-situ causticization may combine with black liquor silicon-removal technology, realizing the in situ causticization when gain the propose of synergy silicon-removal, become an important breakthrough of solving the problem of silicon interference.

关 键 词：原位苛化 黑液气化 碱回收 

分 类 号：X793[环境科学与工程—环境工程]