| 朱振峰,刘有智,罗莹,张中哲.化学通报,2014,77(5):436-440. |
| EDTA-HEDTA复配络合铁体系脱H2S性能研究 |
| Study on Desulfurization performance with Ferric Chelates of EDTA and HEDTA System |
| 投稿时间：2014-01-14 修订日期：2014-02-05 |
| DOI： |
| 中文关键词: EDTA HEDTA 络合铁 H2S 脱硫 |
| 英文关键词:EDTA HEDTA chelate iron hydrogen sulfide desulfurization |
| 基金项目: |
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| 中文摘要: |
| 配制了一种EDTA-HEDTA复配络合铁脱硫液，配方溶液组成为n(EDTA):n(HEDTA):n(Fe3 ):n(Fe2 )=1.2:6:5:1，pH=8.5。研究了进气H2S含量、温度与稳定剂对配方溶液脱硫性能和稳定性的影响，结果表明：配方溶液对H2S质量浓度35%以内的气体有良好吸收效果，脱硫率可达98%以上；随着温度升高，配方溶液脱硫率几乎不变，但穿透时间呈降低趋势；添加稳定剂Na2S2O3或苯甲酸钠可减缓络合剂的降解。硫容测试表明，配方溶液硫容为2.0g/L，具有良好的脱硫潜力。 |
| 英文摘要: |
| Preparing a kind of ferric chelates of EDTA and HEDTA desulfurization solutions, optimal ratio of solutions was n(EDTA):n(HEDTA):n(Fe3 ):n(Fe2 )=1.2:6:5:1，pH=8.5. The effects of hydrogen sulfide content, temperature and stabilizers on the desulfurization performance and stability were studied, the results indicated that desulphurization efficiency of the solutions was above 98% when hydrogen sulfide mass concentration<35%; the desulphurization efficiency almost unchanged but the breakthrough time decreased with the increasing of temperature; using sodium benzoate or sodium thiosulfate as a stabilizer can effectively reduce the degradation efficiency of complex agent in the regeneration process. Sulfur capacity test showed that the sulfur capacity of desulfurization solutions was 2.0g/L, which had a good potential for desulphurization. |
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