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Continuous Saturated Steam Assisted Low‐temperature Pyrolysis of Corncobs and Selective Production of Furfural
Author(s) -
Ye Jun,
Wang Kui,
Li Jing,
Liu Peng,
Xu Junming,
Tan WeiHong,
Jiang Jianchun
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201904536
Subject(s) - furfural , corncob , chemistry , hemicellulose , pyrolysis , catalysis , selectivity , raw material , organic chemistry , chemical engineering , nuclear chemistry , cellulose , engineering
A facile and selective furfural production technology was introduced by using corncobs as raw materials under saturated steam atmosphere in a fixed bed reactor. It was found that Al 2 (SO 4 ) 3 catalyst has showed a good selective performance with furfural selectivity 64.2% (15.8 wt%). The optimal conditions were pyrolysis temperature 230 °C, steam flow 10 g/min (160 °C) and catalyst loading 7.5 mmol. The reaction parameters such as pyrolysis temperature, catalyst loading and steam flow rate all displayed a positive effect on both corncob conversion and furfural selectivity.The higher steam flow displayed a positive effect on furfural dissolving and products desorption. Removal degree of hemicellulose on each catalytic condition analysis indicated that hemicellulose depolymerization was mainly promoted by lower temperature pyrolysis, and furfural selected production was mainly affected by catalytic effect. This technology provided a low‐cost and low‐temperature catalytic reaction to synthesize furfural, which shows a great potential in industrial production.