Innovative additives for chemical desulphurisation in biogas processes: A comparative study on iron compound products

被引：16
|
作者：
Naegele, H. J. [1 ]
Steinbrenner, J. [1 ]
Hermanns, G. [2 ]
Holstein, V. [2 ]
Haag, N. L. [1 ,2 ]
Oechsner, H. [1 ]
机构：
[1] Univ Hohenheim, State Insitute Agr Engn & Bioenergy, Garbenstr 9, D-70599 Stuttgart, Germany
[2] LANXESS Deutschland GmbH, Kennedypl 1, D-50696 Cologne, Germany
来源：
BIOCHEMICAL ENGINEERING JOURNAL | 2017年 / 121卷
关键词：
Biogas; Desulfurization; Iron compounds; Sulphur; Removal efficiency; HYDROGEN-SULFIDE; PURIFICATION; REMOVAL; H2S;
D O I：
10.1016/j.bej.2017.01.006
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Chemical desulphurisation with four iron compound additives in fermenting substrates for biogas production was studied in continuous 161 laboratory anaerobic digestion tests. The experiments were performed to investigate the H2S reduction in three phases including two dosing quantities. Subsequently, the supplementation was stopped. The removal efficiency (RE) increased to 37-51% towards the end of phase 1 and to 61-77% after phase 2. A significant difference in reaction time was measured at the start and at the end of supplementation. FeCl2 showed the fastest response and the highest RE, especially in the first days after applying the treatment. FeOOH Type I and II also showed a high RE throughout the experiment and an additional depot effect was measured after stopping the supplementation, keeping the H2S level lower for a period of at least 11 days. Fe(OH)(3) showed the lowest desulfurization effect. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：181 / 187
页数：7
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