Fractionation and characterization of thermal extracts from lignite under ultrasonic-assisted extraction

Xin Zha; Shibiao Ren; Tao Jiang; Jingchong Yan; Zhicai Wang; Zhiping Lei; Chunxiu Pan; Shigang Kang; Zhanku Li; Hengfu Shui

Carbon Resources Conversion (Jan 2021)

Fractionation and characterization of thermal extracts from lignite under ultrasonic-assisted extraction

Xin Zha,
Shibiao Ren,
Tao Jiang,
Jingchong Yan,
Zhicai Wang,
Zhiping Lei,
Chunxiu Pan,
Shigang Kang,
Zhanku Li,
Hengfu Shui

Affiliations

Xin Zha: School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology, Ma’anshan, Anhui 243002, China
Shibiao Ren: Corresponding authors.; School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology, Ma’anshan, Anhui 243002, China
Tao Jiang: School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology, Ma’anshan, Anhui 243002, China
Jingchong Yan: School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology, Ma’anshan, Anhui 243002, China
Zhicai Wang: School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology, Ma’anshan, Anhui 243002, China
Zhiping Lei: School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology, Ma’anshan, Anhui 243002, China
Chunxiu Pan: School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology, Ma’anshan, Anhui 243002, China
Shigang Kang: School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology, Ma’anshan, Anhui 243002, China
Zhanku Li: School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology, Ma’anshan, Anhui 243002, China
Hengfu Shui: Corresponding authors.; School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization, Anhui University of Technology, Ma’anshan, Anhui 243002, China

Journal volume & issue: Vol. 4
pp. 214 – 218

Abstract

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Hypercoal (HPC) is promising feedstock for producing coal-based chemicals due to its extremely low ash content and high reactivity. However, the conventional methods for HPC preparation through thermal extraction under mechanical stirring are difficult to scale-up due to the low HPC yield and large consumption of solvent. This work conducted ultrasonic-assisted extraction (UAE) instead of mechanical stirring to enhance the efficiency of HPC production, and the effect of technological conditions on the HPC yield were examined. It was found that the UAE could remarkably enhance the HPC yield from 52.3% to 82.4%. Moreover, the ratio of soluble (HPC-S) to deposit (HPC-D) increased from 1.65 to 2.85, verifying the high efficiency and the capacity of altering the product distribution of UAE.

Published in Carbon Resources Conversion

ISSN: 2588-9133 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Chemical technology
Website: https://www.keaipublishing.com/en/journals/carbon-resources-conversion/

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