Pyrolysis Treatment of Chromite Ore Processing Residue by Biomass: Cellulose Pyrolysis and Cr(VI) Reduction Behavior

doi:10.1021/acs.est.5b05707

QIBEBT-IR > 工业生物燃气研究组

	Pyrolysis Treatment of Chromite Ore Processing Residue by Biomass: Cellulose Pyrolysis and Cr(VI) Reduction Behavior
	Zhang, Da-Lei 1; Zhang, Mei-Yi 2; Zhang, Chu-Hui 1; Sun, Ying-Jie 1; Sun, Xiao 1; Yuan, Xian-Zheng3
	2016-03-15
发表期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷号	50 期号:6 页码:3111-3118
摘要	The pyrolysis treatment with biomass is a promising technology for the remediation of chromite-ore-processing, residue (COPR). However, the mechanism of this process is Still unclear. In this study, the behavior of pyrolysis reduction of Cr(VI) by cellulose, the main component of biomass, was elucidated. The results showed that the volatile fraction (VIE) of cellulose, ie. gas and tar, was responsible for Cr(VI) reduction. All organic compounds, as well as CO and H-2 in VF, potentially reduced Cr(VI). X-ray absorption near edge structure (XANES) spectroscopy and extended X-ray absorption fine-structure (EXAFS) spectroscopy confirmed the reduction of Cr(VI) to Cr(III) and the formation of amorphous Cr2O3. The remnant Cr(VI) content in COPR can be reduced below the detection limit (2 mg/kg) by the reduction of COPR particle and extension of reaction time between VF and COPR. This study provided a deep insight on the co-pyrolysis of cellulose with Cr(VI) in COPR and an ideal approach by which to characterize and optimize the pyrolysis treatment for COPR by other organics.
文章类型	Article
WOS标题词	Science & Technology ; Technology ; Life Sciences & Biomedicine
DOI	10.1021/acs.est.5b05707
关键词[WOS]	IN-SITU CHARACTERIZATION ; OXIDE CATALYSTS ; OXIDATIVE DEHYDROGENATION ; COPR ; CHROMATE ; WASTES ; SOILS ; ACID ; IRON ; SPECTROSCOPY
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
项目资助者	National Natural Science Foundation of China(51008164) ; Natural Science Foundation of Shandong Province(ZR2014EEM041) ; China Postdoctoral Science Foundation(2014M561889)
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000372392100040
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/8066
专题	工业生物燃气研究组
作者单位	1.Qingdao Technol Univ, Sch Environm & Municipal Engn, Qingdao 266033, Shandong, Peoples R China 2.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China 3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Da-Lei,Zhang, Mei-Yi,Zhang, Chu-Hui,et al. Pyrolysis Treatment of Chromite Ore Processing Residue by Biomass: Cellulose Pyrolysis and Cr(VI) Reduction Behavior[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2016,50(6):3111-3118.
APA	Zhang, Da-Lei,Zhang, Mei-Yi,Zhang, Chu-Hui,Sun, Ying-Jie,Sun, Xiao,&Yuan, Xian-Zheng.(2016).Pyrolysis Treatment of Chromite Ore Processing Residue by Biomass: Cellulose Pyrolysis and Cr(VI) Reduction Behavior.ENVIRONMENTAL SCIENCE & TECHNOLOGY,50(6),3111-3118.
MLA	Zhang, Da-Lei,et al."Pyrolysis Treatment of Chromite Ore Processing Residue by Biomass: Cellulose Pyrolysis and Cr(VI) Reduction Behavior".ENVIRONMENTAL SCIENCE & TECHNOLOGY 50.6(2016):3111-3118.