石油炼制与化工

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天然气复合三元脱硫剂Cu-Zn-Ni/Al2O3性能的实验研究

张烨1,苏庆泉2   

  1. 1. 中环(中国)工程有限公司
    2. 北京科技大学 热科学与能源工程系
  • 收稿日期:2011-01-04 修回日期:2011-03-21 出版日期:2011-09-12 发布日期:2011-09-12
  • 通讯作者: 张烨

EXPERIMENTAL RESEARCH ON THE PERFORMANCE OF Cu-Zn-Ni/Al2O3 THREE-WAY DESULFURIZER TREATING NATURAL GAS

  • Received:2011-01-04 Revised:2011-03-21 Online:2011-09-12 Published:2011-09-12

摘要: 用共沉淀法加浸渍法制成Ni含量分别为0,5%,10%的Cu-Zn-Ni/Al2O3复合三元脱硫剂,通过天然气脱硫实验,研究了它们的脱硫性能。实验结果表明:合适的Ni含量会增强Cu-Zn-Ni/Al2O3脱硫剂的精脱硫性能(<10×10-9),并且随着温度的升高,脱硫性能逐渐增强,最终会趋于稳定。5%Ni含量的Cu-Zn-Ni/Al2O3脱硫剂性能最优,在285 ℃分别达到5×10-9,5×10-9,6×10-9的脱硫深度。空速为400、1 200 h-1时,0Ni脱硫剂脱硫性能优于10%Ni脱硫剂;空速为2 400 h-1时,10%Ni脱硫剂脱硫性能优于0Ni脱硫剂。

关键词: 三元脱硫剂, 精脱硫, Ni含量, 天然气

Abstract: Cu-Zn-Ni/Al2O3 desulfurizers having Ni contents of 0, 5% and 10% were prepared by co-precipitation and impregnation methods, and their desulfurization performance was studied using natural gas as feed. Test results showed that suitable Ni content could enhance the fine desulfurization performance of desulfurizer, and the fine desulfurization performance enhanced with the reaction temperature to reach a stable stage. Cu-Zn-Ni/Al2O3 desulfurizer having Ni contents of 5% exhibited the best desulfurization performance, under the temperature of 285℃, space velocity of 400, 1 200 and 2 400 h-1, the sulfur content of treated natural gas reached 5, 5 and 6 L/m3, respectively. When the space velocities were 400, 1 200 h-1, the desulfurization performance of Cu-Zn/Al2O3 desulfurizer was better than that of Cu-Zn-Ni/Al2O3 desulfurizer with Ni content of 10%, yet under the space velocity of 2 400 h-1, the results were reversed.

Key words: three-way desulfurizer, fine desulfurization, Ni content, natural gas