Co-pyrolysis characteristics and interaction route between low-rank coals and Shenhua coal direct liquefaction residue

Kai Li; Xiaoxun Ma; Ruiyu He; Zhenni Li

doi:10.1016/j.cjche.2019.03.032

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Co-pyrolysis characteristics and interaction route between low-rank coals and Shenhua coal direct liquefaction residue

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Co-pyrolysis characteristics and interaction route between low-rank coals and Shenhua coal direct liquefaction residue
- Chinese Journal of Chemical Engineering Vol. 27, Issue 11, Pages: 2815-2824(2019)
- Affiliations：
  
  1. School of Chemical Engineering, Northwest University,Xi'an,China,710069
  2. International Scientific and Technological Cooperation Base of the Ministry of Science and Technology(MOST) for Clean Utilization of Hydrocarbon Resources,Xi'an,China,710069
  3. Chemical Engineering Research Center of the Ministry of Education(MOE) for Advanced Use Technology of Shanbei Energy,Xi'an,China,710069
  4. Shaanxi Research Center of Engineering Technology for Clean Coal Conversion,Xi'an,China,710069
  5. Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi,Xi'an,China,710069
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.03.032
  CLC：
- Published：2019
- Accepted：
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Kai Li, Xiaoxun Ma, Ruiyu He, Zhenni Li. Co-pyrolysis characteristics and interaction route between low-rank coals and Shenhua coal direct liquefaction residue[J]. Chinese Journal of Chemical Engineering, 2019, 27(11): 2815-2824.
DOI：

Kai Li, Xiaoxun Ma, Ruiyu He, Zhenni Li. Co-pyrolysis characteristics and interaction route between low-rank coals and Shenhua coal direct liquefaction residue[J]. Chinese Journal of Chemical Engineering, 2019, 27(11): 2815-2824. DOI： 10.1016/j.cjche.2019.03.032.

摘要

Abstract

To reasonably utilize the coal direct liquefaction residue (DLR)

contrasting research on the co-pyrolysis between different low-rank coals and DLR was investigated using a TGA coupled with an FT-IR spectrophotometer and a fixed-bed reactor. GC-MS

FTIR

and XRD were used to explore the reaction mechanisms of the various co-pyrolysis processes. Based on the TGA results

it was confirmed that the tetrahydrofuran insoluble fraction of DLR helped to catalyze the conversion reaction of lignite. Also

the addition of DLR improved the yield of tar in the fixed-bed

with altering the composition of the tar. Moreover

a kinetic analysis during the co-pyrolysis was conducted using a distributed activation energy model. The co-pyrolysis reactions showed an approximate double-Gaussian distribution.

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