Nature Environment and Pollution Technology

Jihong Zhou ¹, Qi Jiang ¹, Yamin Wen ¹, Ronghe Liang ¹

Affiliations
1 Institute of Urban Construction, Hebei University of Engineering, Handan 056038, CN

Abstract

The removal of hydrogen sulphide by using the method of dry desulphurization in a normal temperature iron oxide is introduced in this paper. The experiment has been conducted by using the ferric oxide as the desulphurizer in the waste red mud and added wood chips and calcium oxide for the removal of hydrogen sulphide. Also, the desulphurization efficiency of desulphurizer is researched in different drying temperatures and different ratio conditions, and the best condition of removing hydrogen sulphide is studied. The results of the studies show that the best conditions of removing hydrogen sulphide are 80% of red mud, 5% of wood chips and 15% of calcium oxide at 110°C drying temperature; 85% of red mud, 5% of wood chips and 10% of calcium oxide at 130°C drying temperature; and 70% of red mud, 5% of wood chips and 25% of calcium oxide at 150°C drying temperature. In three different drying temperatures, the best ratio is 85% of red mud, 5% of wood chips, 10% of calcium oxide, and the best drying temperature is 130°C. This test also provides technical support for further industrial utilization.

Keywords

Hydrogen Sulphide, Desulphuration By Ferric Oxide, Red Mud.

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Jihong Zhou ¹, Ronghe Liang ¹, Xia Zhang ¹, Xianwei Liu ¹

Affiliations
1 College of Urban Construction, Hebei University of Engineering, Handan 056038, CN

Abstract

As a new type of high performance adsorbents and catalysts, activated carbon fibre (ACF) shows broad application prospects in flue gas desulfurization because of its unique physical and chemical properties. We designed a set of experiments to study the factors affecting desulfurization performance of ACF, namely determining desulfurization performance of ACF before and after its regeneration, ACF soaked with 100g lime and ACF soaked with the fly ash and lime whose ratio was 1:1. The results show that after ACF regeneration, desulfurization performance of ACF declines, and the duration is also reduced; after being soaked with 100g lime, desulfurization performance of ACF has been improved significantly, and the duration also increases; after being soaked with the fly ash and lime in the ratio of 1:1, desulfurization performance of ACF is higher than that soaked with 100g lime, and the duration is longer.

Keywords

Activated Carbon Fibre, Flue Gas Desulfurization, Fly Ash, Lime.

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