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Biogas desulphurization by iron oxide impregnated coco coir in laboratory scale fixed bed reactor
Hasan M.a, Effendi A.J.b
a Research Center for Chemistry, Indonesian Institute of Sciences, Bandung, Indonesia
b Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2015 IEEE.Removal process for corrosive, noxious and offensive odorous hydrogen sulfide (H2S) is often needed in waste to energy conversion system based on biogas. A hydrated iron oxide based reactive adsorbent that called iron oxide impregnated coco coir (IOCC) has been prepared for supporting H2S removal from biogas. For establishing its optimized separation performance, a series of laboratory scale experiments have been carried out in 100 mm bed length of fixed bed reactors and using synthetic biogas with 1000 ppm H2S concentration under plug flow condition. It was applied two level factorial design of experiment for parameters: pH 6.5 and 9; superficial gas velocity (v) 1.0 and 2.5 m/min; and two level regeneration treatments. The main indicator of reactor performance was characterized with sulfur removal capacity (SCb) that calculated from breakthrough curves with 100 ppm maximum outlet H2S concentration. The results showed that, under the experimental conditions, the separation process was not controlled by the external diffusion mass transfer step, but controlled by the chemical reaction step. The reactor performance could be improved by increasing pH with Na2CO3 addition and increasing the contact time with decreasing superficial velocity. The optimum operating conditions are pH=9 and superficial velocity v=1.0 m/min. Besides that, the sulfur capacity of saturated adsorbent could be recovered partially by oxidation reaction with air. This study constitutes the basis data for the next step of the scale-up experimentation at pilot scale fixed bed reactor.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]coco coir,Experimental conditions,Fixed bed reactor,Optimum operating conditions,Sulfur removal capacity,Superficial gas velocities,Two level factorial designs,Waste to energy conversion[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]biogas,coco coir,fixed bed reactor,hydrogen sulfide,iron oxid[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1109/ICSEEA.2015.7380740[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]