IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)
Contrasting effects of operating conditions and biomass particle size on bulk characteristics and surface chemistry of rice husk derived-biochars
Abbas, Q (Abbas, Qumber)[ 1,2 ]; Liu, GJ (Liu, Guijian)[ 1,2 ]; Yousaf, B (Yousaf, Balal)[ 1,2 ]; Ali, MU (Ali, Muhammad Ubaid)[ 1 ]; Ullah, H (Ullah, Habib)[ 1 ]; Munir, MAM (Munir, Mehr Ahmed Mujtaba)[ 1 ]; Liu, RJ (Liu, Ruijia)[ 1 ]
2018-09
Source PublicationJOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume134Pages:281-292
Subtype期刊论文
Abstract

In this study, the slow pyrolysis of rice husk was conducted by using a split-tube furnace under a nitrogen environment to investigate the influence of various pyrolysis conditions and biomass particle sizes on products yield distribution as well as physicochemical characteristics and surface chemistry of produced biochars. Results revealed that temperature has a more pronounced influence on products yield compared to the other operational conditions. The biochar yield decreases from 57.13 ± 5.37% to 37.19 ± 2.05% and gaseous phase yield increase from 25.64 ± 0.93% to 42.50 ± 4.58% with temperature increase from 300 °C to 700 °C. The surface chemistry of produced biochar varies widely as the distribution of different functional groups on its surface influenced by operational conditions and biomass particle size; above 500 °C the intensity of FTIR vibrational peaks reduces abruptly. FTIR, SEM, elemental composition and surface area results indicate that biochar synthesized under higher pyrolysis temperature, extended retention time and, lower heating and gas flow rates with fine biomass particle size has utility as a potential C-sequestration and remedial agent to mitigate global climate change and adsorption of environmental pollutants, respectively. Furthermore, biochar has potential application as a renewable solid bio-fuel source due to higher calorific values. A cost-benefit analysis indicates that the viability of biochar saleable product system is more economical with an annual profit of 138,533$ for the low scenario, when the presumed unit processes 2500 tons y−1 of biomass. In a comparison to other presumed scenarios, this system is more feasible in areas where low-cost RH biomass waste is available abundantly such as in rice production and processing areas. The profitability of this system increases further by accounting pyrolysis-gas energy value that reduces operational cost. For the optimization of biochar economical yield with desired properties, this work provides insight knowledge.

KeywordSurface Chemistry Rice Husk Pyrolysis Yield Biochar/black Carbon Characteristics Particle Size Cost-benefit Analysis
DOI10.1016/j.jaap.2018.06.018
Indexed BySCI
Language英语
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9559
Collection黄土与第四纪地质国家重点实验室(2010~)
Corresponding AuthorLiu, GJ (Liu, Guijian)[ 1,2 ]
Affiliation1.CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026,China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi’an, Shaanxi, 710075, China
Recommended Citation
GB/T 7714
Abbas, Q ,Liu, GJ ,Yousaf, B ,et al. Contrasting effects of operating conditions and biomass particle size on bulk characteristics and surface chemistry of rice husk derived-biochars[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2018,134:281-292.
APA Abbas, Q .,Liu, GJ .,Yousaf, B .,Ali, MU .,Ullah, H .,...&Liu, RJ .(2018).Contrasting effects of operating conditions and biomass particle size on bulk characteristics and surface chemistry of rice husk derived-biochars.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,134,281-292.
MLA Abbas, Q ,et al."Contrasting effects of operating conditions and biomass particle size on bulk characteristics and surface chemistry of rice husk derived-biochars".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 134(2018):281-292.
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