Open AccessHydrothermal Oxidation of Polyethylene (PE) Plastic to Short-chain Fatty Acids (C1 - C5)
Author(s) -
Wanning Zhou,
Heng Zhong,
Fangming Jin
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/450/1/012049
Subject(s) - valeric acid , acetic acid , polyethylene , chemistry , formic acid , incineration , pyrolysis , butyric acid , organic chemistry , yield (engineering) , residue (chemistry) , nuclear chemistry , waste management , materials science , engineering , metallurgy
In most of the past studies on disposal of waste plastic, due to the irreversible hazards for human environmental health (incineration), and the strict requirements of reaction conditions (pyrolysis, gasification), the cost of disposal and research also increases. In this study, we converted waste polyethylene (PE) plastic into high value-added organic products by high-temperature water (HTW) to obtain C1 to C5 short-chain fatty carboxylic acids (formic acid, acetic acid, propionic acid, butyric acid and valeric acid). In addition, the reaction parameters (temperature, time, oxidant amount, pH) were investigated under hydrothermal conditions, and the yield for PE to short-chain fatty acids (C1 -C5) was optimized to 20%. Then the concentration of TOC and IC in the solution was used to measure the conversion and degradation of PE. In addition, the oil phase and solid residue after the reaction were also discussed in this research.