【作者】 上官炬； 程继光；

【Author】 Shangguan Ju Cheng Ji-guang (Key Laboratory of Coal Science and Technology(Taiyuan University of Technolog), Ministry of Education and Shanxi Province, Taiyuan, 030024)

【机构】 太原理工大学煤科学与技术教育部和山西省重点实验室；

【摘要】 活性炭是一种具有比表面积大、孔结构复杂、表面活性基团丰富,且操作简单的吸附剂,常常被用作煤制气脱硫。但普通的活性炭被用作为精细脱硫时,它的硫容非常低。因此,改性活性炭提高其精细脱除硫化氢性能的研究具有非常重要的意义。本文选择煤质活性炭为原料,利用等体积浸渍氧化铜,对活性炭进行物化性能改性,制备出了改性活性炭精脱硫剂。在固定床反应器上,考察了制备条件(活性组分负载量和煅烧温度)和使用条件(脱硫温度、氧气)对其精细脱除硫化氢性能的影响。实验结果表明:负载CuO可显著提高改性活性炭脱硫剂硫容,4 %CuO负载量为最佳;煅烧温度有最佳值;脱硫温度在实验温区内对改性活性炭脱硫剂脱硫性能影响不明显;氧气可提高脱硫剂的硫容。更多还原

【Abstract】 Active carbon is an absorbent with large in surface area, complex in pore structure, and rich in surface active groups as well as simple in application, which is used as desulfurization absorbent of sulfur removal from chemical raw gas But, its sulfur removal capacity is very low, while the common active carbon was used in fine desulfurization Therefore, the researches on modifying active carbon play an important role in improving fine desulfurization In this paper, the activated carbons originating from coal was used as raw material It was modified by the activation methods of loading CuO, thus fine desulfurizers were prepared The influences of preparation conditions and the technological conditions on fine desulfurization of activated carbons were evaluated in a fixed-bed reactor The results show that the loading CuO on active carbon greatly increase the sulfur removal capacity of activated carbon; The optimal charge amount for CuO is 4% wt; The technological temperature slightly change the sulfur removal capacity of activated carbon in the rang of experimental temperature; The existence of O2 in syngas also increases the sulfur removal capacity of activated carbon更多还原