炼油技术与工程 ›› 2025, Vol. 55 ›› Issue (4): 47-50.

• 催化剂和助剂 • 上一篇    下一篇

废酸再生装置SO₂低温氧化催化剂工业应用总结
#br#

徐翠翠¹，孙启洪¹，潘红年²，刘剑利¹，杨析宗¹，刘增让¹

  

  1. ¹. 中国石油化工股份有限公司齐鲁分公司，山东省淄博市 255400；². 中国石化催化剂有限公司齐鲁分公司，山东省淄博市 255330

  • 收稿日期:2025-01-07 出版日期:2025-04-15 发布日期:2025-04-21
  • 作者简介:徐翠翠，副研究员，大学本科，2009年毕业于中国石油大学（华东）化学工程与工艺专业，主要研究方向为硫回收催化剂技术及工艺。联系电话：0533-7512127，E-mail：xucuicui.qlsh@sinopec.com。
  • 基金资助:
    中国石油化工集团公司课题（124086）

Industrial application summary of low-temperature SO₂ oxidation catalyst in waste sulfuric acid regeneration units
#br#

Xu Cuicui¹, Sun Qihong¹, Pan Hongnian², Liu Jianli¹, Yang Xizong¹, Liu Zengrang¹
#br#
  

  1. ¹. SINOPEC Qilu Petrochemical Company, Zibo, Shandong 255400; ². SINOPEC Catalyst Qilu Branch Company, Zibo, Shandong 255330

  • Received:2025-01-07 Online:2025-04-15 Published:2025-04-21

PDF

摘要：

介绍了SO₂低温氧化催化剂LC-01的工业生产及在某炼油厂烷基化废酸装置的工业应用情况。在工业生产装置上进行了LC-01催化剂的工业试生产。该催化剂具有良好的制备重复性及活性。与进口催化剂相比，LC-01催化剂具有更高的比表面积和孔体积，灰分明显低于进口催化剂。在某炼油厂烷基化废酸装置完成了催化剂的装填及开工，装置开工后三级反应器（R-355）运行稳定，各项参数均在正常范围内，尾气SO₂的质量浓度稳定低于1 mg/m³，LC-01催化剂运行良好。装置稳定运行两个月后，开展了首次工业应用标定，标定期间R-355入口SO₂的质量浓度在41～55 mg/m³，出口SO₂的质量浓度小于1 mg/m³；LC-01催化剂SO₂转化率在98%以上，平均转化率为99.07%；高架源SO₂排放稳定低于0.58 mg/m³，满足环保法规要求。LC-01催化剂运行良好，可以满足装置使用要求，实现催化剂的国产化替代。

关键词: 废酸再生装置, 二氧化硫, 低温氧化, LC-01催化剂, 转化率, 床层压降, 床层温度, 氮氧化物

Abstract:

This paper summarizes the industrial production and application of the LC-01 low-temperature SO₂ oxidation catalyst in an alkylation waste sulfuric acid regeneration unit at a refinery. Initially, trial production of the LC-01 catalyst was conducted, demonstrating excellent batch-to-batch consistency and catalytic activity. Compared with imported catalysts, LC-01 exhibited higher specific surface area and pore volume, and significantly lower ash content. Post-catalyst loading and unit startup, the three-stage reactor R-355 operated stably, with all parameters within normal ranges. Tail gas SO₂ concentration remained below 1 mg/m³, verifying the stable performance of LC-01. After two months of continuous operation, the first industrial performance test showed the following results: the inlet SO₂ concentration of R-355 ranged 41–55 mg/m³, while the outlet concentration was less than 1 mg/m³. The SO₂ conversion rate exceeded 98% (average 99.07%), and elevated emission source SO₂ levels stabilized below 0.58 mg/m³, meeting environmental regulations. The LC-01 catalyst runs well and can meet the requirements of the units, achieving localization of the catalyst.

Key words: waste sulfuric acid regeneration unit, SO?, low-temperature oxidation, LC-01 catalyst, conversion rate, bed pressure drop, bed temperature, NO?