Physiochemical, structural and combustion properties of hydrochar obtained by hydrothermal carbonization of waste polyvinyl chloride

被引：55

作者：

Ning, Xiaojun ^{[1
,2
]}

Teng, Haipeng ^{[1
,3
]}

Wang, Guangwei ^{[1
,3
]}

Zhang, Jianliang ^{[1
,3
]}

Zhang, Nan ^{[1
,3
]}

Huang, Chunchao ^{[1
,3
]}

Wang, Chuan ^{[4
,5
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, GuanZhuang Campus, Beijing 100083, Peoples R China

[3] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China

[4] Swerim AB, SE-97125 Lulea, Sweden

[5] Abo Akad Univ, Thermal & Flow Engn Lab, FI-20500 Turku, Finland

来源：

FUEL | 2020年 / 270卷

关键词：

Waste polyvinyl chloride; Hydrothermal carbonization; Combustion; Kinetic analysis; CHAR STRUCTURE; PYROLYSIS; PVC; BIOMASS; PLASTICS; ENERGY; DECHLORINATION; SPECTROSCOPY; KINETICS; FEATURES;

D O I：

10.1016/j.fuel.2020.117526

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this study, hydrothermal carbonization (HTC) was used to convert waste polyvinyl chloride to produce hydrochar by evaluating its physiochemical, structural and combustion properties for use as a solid fuel. The results showed that the yield, H/C and O/C atomic ratio of hydrochars decreased with the increase of HTC temperature, meanwhile the higher heating value increased. From physiochemical property analysis, hydrochars had more abundant pore structure and higher ordering degree of carbonaceous due to elimination, aromatization and polymerization reaction during HTC process. The combustion and kinetic analysis results show that the hydrochar obtained at the HTC temperature of 250 degrees C and time of 60 min had the best combustion reactivity. The activation energy calculated by KAS and OFW methods were similar, and the average activation energy of hydrochars calculated by KAS method ranged from 124.8 kJ/mol to 234.7 kJ/mol.

引用

页数：12

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