Role of levulinic acid in catalytic wet torrefaction of oil palm trunks: Insights into the hydrochar physicochemical properties, liquid phase composition, and reaction mechanisms

被引：2

作者：

Soh, Megan ^{[1
]}

Mostapha, Marhaini ^{[2
]}

Chai, Yee Ho ^{[3
]}

Khaerudini, Deni Shidqi ^{[4
]}

Phang, Frederick Jit Fook ^{[1
]}

Chew, Jiuan Jing ^{[1
]}

Loh, Soh Kheang ^{[5
]}

Yusup, Suzana ^{[6
]}

Sunarso, Jaka ^{[1
]}

机构：

[1] Swinburne Univ Technol, Fac Engn Comp & Sci, Res Ctr Sustainable Technol, Sarawak Campus, Kuching 93350, Sarawak, Malaysia

[2] Natl Inst Hlth, Inst Hlth Syst Res, Ctr Hlth Econ Res, Jalan Setia Murni U13 52,Seksyen U13 Setia Alam, Shah Alam 40170, Selangor, Malaysia

[3] Univ Teknol PETRONAS, HICOE Ctr Biofuel & Biochem Res, Inst Self Sustainable Bldg, Dept Chem Engn,Biomass Proc Lab, Seri Iskandar 32610, Perak Darul Rid, Malaysia

[4] Natl Res & Innovat Agcy BRIN, Res Ctr Adv Mat, Bld 440 Kawasan Puspiptek Serpong, South Tangerang 15314, Banten, Malaysia

[5] Malaysian Palm Oil Board, Engn & Proc Div, Energy & Environm Unit, 6 Persiaran Inst, Kajang 43000, Selangor, Malaysia

[6] Tenaga Nasl Berhad TNB Res Sdn Bhd, Dept Generat & Environm, Generat Unit Fuel Technol & Combust, 1,Kawasan Inst Penyelidikan,Jalan Ayer Hitam, Kajang 43000, Selangor, Malaysia

来源：

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION | 2023年 / 172卷

关键词：

Hydrothermal carbonisation; Oil palm biomass; Organic acid catalyst; Reaction pathways; 5-hydroxymethylfurfural (5-HMF); HYDROTHERMAL CARBONIZATION HTC; CARBOHYDRATE BIOMASS; CONVERSION; TEMPERATURE; CELLULOSE; GLUCOSE; CARBON; TIME; BIOFUEL; BAMBOO;

D O I：

10.1016/j.psep.2023.02.085

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study evaluates the effects of levulinic acid addition and different operating conditions on the physico-chemical and structural properties of the resultant OPT hydrochar as well as on the liquid phase composition to identify its potential reaction pathway during wet torrefaction. The addition of levulinic acid enhances the solid yield and HHV of the hydrochar and promote repolymerisation and condensation reactions for the formation of secondary char with high HHV. The highest energy yield of 66.47% was attained from the OPT hydrochar wet torrefied at 220 degrees C for 24 h with 1.0 M of levulinic acid. Increasing the levulinic acid concentration promoted secondary chars to agglomerate. Liquid phase analyses showed that wet torrefaction of OPT in the presence of levulinic acid promotes the hydrolysis of hemicellulose and cellulose to glucose at mild operating conditions and enhances the rehydration of 5-HMF to levulinic acid.

引用

页码：1087 / 1098

页数：12

共 2 条

[1] Physicochemical and structural characterisation of oil palm trunks (OPT) hydrochar made via wet torrefaction
Soh, Megan
Khaerudini, Deni Shidqi
Yiin, Chung Loong
Chew, Jiuan Jing
Sunarso, Jaka
[J]. CLEANER ENGINEERING AND TECHNOLOGY, 2022, 8
[2] Reaction mechanisms of the wet torrefaction of oil palm trunks under the effect of initial pressurisation
Soh, Megan
Phang, Frederick Jit Fook
Chai, Yee Ho
Chew, Jiuan Jing
Loh, Soh Kheang
Yusup, Suzana
Yu, Aimin
Sunarso, Jaka
[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN, 2023, 193 : 493 - 506

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