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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 38, 2016 - Issue 12
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Articles

Liquefaction of coconut fibers in alkaline hot-compressed water

Enguang XuDepartment of Wood Science and Engineering, College of Forestry, South China Agricultural University, Tianhe, Guangzhou, Guangdong, China
,
Jin SunDepartment of Wood Science and Engineering, College of Forestry, South China Agricultural University, Tianhe, Guangzhou, Guangdong, China
,
Xiaofeng ZhuDepartment of Wood Science and Engineering, College of Forestry, South China Agricultural University, Tianhe, Guangzhou, Guangdong, China
,
Xiaobo WangDepartment of Wood Science and Engineering, College of Forestry, South China Agricultural University, Tianhe, Guangzhou, Guangdong, China
&
Zhenzhong GaoDepartment of Wood Science and Engineering, College of Forestry, South China Agricultural University, Tianhe, Guangzhou, Guangdong, ChinaCorrespondence[email protected]
Pages 1750-1755 | Published online: 31 May 2016
 
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ABSTRACT

In this study, coconut fibers were pretreated using NaOH solution and liquefied in hot-compressed water. A Box–Behnken design (BBD) was applied to identify the optimum liquefaction condition. The individual and interactive effects of four factors on liquefaction reaction were evaluated by the response surface methodology (RSM). After the pretreatment, the natural fiber crystallinity index (CrI) was increased, as proved by the X-ray diffraction (XRD) diffractograms. The resulting liquid and residues were characterized by Fourier transform infrared (FTIR), and it was found that the liquefied liquid mainly contained aromatic phenolic compounds and its derivatives.

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