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	微生物还原法制备脱硫催化剂吸附SO2的研究; Study on desulfurated catalyst prepared by biological reduction for SO_2 adsorption
	杨海贤 ; 阮亿明 ; 卢建华 ; 宋浩
	2015-11-15
关键词	大肠杆菌 吸附 脱硫 再生 Escherichia coli adsorbent desulfurization regenerative
英文摘要	在室温条件,采用大肠杆菌(ESCHErICHIA COlI)与常规浸渍法制备的Cu O/γ-Al2O3相互作用制备了一种络合催化剂,并研究了催化剂在液相中的脱硫和再生性能。研究表明:该络合催化剂在Cu负载量为2%时,对SO2的饱和吸附量可达312.2 Mg/g·CAT,当SO2浓度为100Mg/l,催化剂浓度1g/l时,其脱硫率能达到92.8%;吸附后的催化剂可通过加热再生,4次再生后其脱硫率为80.5%,是一种性能良好的脱硫剂。fTIr和XPS分析表明,在有氧和水条件下,菌粉表面的把Cu2+还原成Cu+,然后Cu+与菌粉中的羧基相互作用形成的络合物是吸附SO2的活性中心。; A complex catalyst was prepared by bioreduction method with Escherichia coli at low temperature and its desulfurization ability and regenerative property were studied.Stoichiometric amounts of Cu(NO3)2 aqueous solution was impregnated on γ-Al2O3 for the preparation of Cu2+/ γ-Al2O3.The loading weight of Cu2+ is 2%.Experiments also showed that the adsorbent had a good capacity of SO2(312.2 mg/g adsorbent), and the efficiency of desulfurization can reached 92.8% when concentration of SO2 and adsorbent were 100 mg/L and 1 g/L respectively.There results indicated that it can be easily regenerated and theregenerative adsorbent still has a good SO2 adsorption ability, higher than 80.5% of that in fresh adsorbent after four regenerations.FTIR and XPS analysis showed that biomass can reduce Cu2+ to Cu+ by aldose and keep the valence of copper exposed to O2 and H2 O atmosphere, then Cu+ and bacteria powder in the carboxyl group formed by the interaction of the complexes are the active center SO2 adsorption.; 福建省教育厅A类科研项目(JA14440); 莆田市工业科技类科研项目(2012JG01)资助
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/107225]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	杨海贤,阮亿明,卢建华,等. 微生物还原法制备脱硫催化剂吸附SO2的研究, Study on desulfurated catalyst prepared by biological reduction for SO_2 adsorption[J],2015.
APA	杨海贤,阮亿明,卢建华,&宋浩.(2015).微生物还原法制备脱硫催化剂吸附SO2的研究..
MLA	杨海贤,et al."微生物还原法制备脱硫催化剂吸附SO2的研究".(2015).

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