Reaction (formaldehyde) separation and analysis of <i>n</i>-heptane extraction residue from heavy oil of medium and low temperature coal tar

FENG Xin-juan; MIN Xiao-jian; ZHENG Hua-an; FAN Ying-jie; LI Ya-bo; KONG Xiang-xi; WAN Chong; SUN Ming; MA Xiao-xun

Volume 46 Issue 1

Jan. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(1): 15-26

FENG Xin-juan, MIN Xiao-jian, ZHENG Hua-an, FAN Ying-jie, LI Ya-bo, KONG Xiang-xi, WAN Chong, SUN Ming, MA Xiao-xun. Reaction (formaldehyde) separation and analysis of n-heptane extraction residue from heavy oil of medium and low temperature coal tar[J]. Journal of Fuel Chemistry and Technology, 2018, 46(1): 15-26.

Citation:

FENG Xin-juan, MIN Xiao-jian, ZHENG Hua-an, FAN Ying-jie, LI Ya-bo, KONG Xiang-xi, WAN Chong, SUN Ming, MA Xiao-xun. Reaction (formaldehyde) separation and analysis of n-heptane extraction residue from heavy oil of medium and low temperature coal tar[J]. Journal of Fuel Chemistry and Technology, 2018, 46(1): 15-26.

Citation:

FENG Xin-juan, MIN Xiao-jian, ZHENG Hua-an, FAN Ying-jie, LI Ya-bo, KONG Xiang-xi, WAN Chong, SUN Ming, MA Xiao-xun. Reaction (formaldehyde) separation and analysis of n-heptane extraction residue from heavy oil of medium and low temperature coal tar[J]. Journal of Fuel Chemistry and Technology, 2018, 46(1): 15-26.

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Reaction (formaldehyde) separation and analysis of n-heptane extraction residue from heavy oil of medium and low temperature coal tar

1.
School of Chemical Engineering, Northwest University, International Scientific and Technological Cooperation Base for Clean Utilization of Hydrocarbon Resources, Chemical Engineering Research Center of the Ministry of Education for Advance Use Technology Energy of Northern Shaanxi, Shaanxi Research Center of Engineering Technology for Clean Coal Conversion, Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Xi'an 710069, China
2.
Shaanxi Coal Chemical Industry Technology Research Institute Co., Ltd., Xi'an 710070, China

Funds:

the National Natural Science Foundation of China 21536009

the National Natural Science Foundation of China 21406178

Science and Technology Plan Projects of Shanxi Province 2017ZDCXL-GY-10-03

the Young Science and Technology Star Project of Shaanxi Province 2017KJXX-62

Project Academic Supported by Natural Science Basic Research Plan in Shaanxi Province of China 2017JQ2040

Foundation of Outstanding Young Backbone Supporting Program of Northwest University 2015

More Information

Corresponding author: SUN Ming, E-mail: sunming@nwu.edu.cn; MA Xiao-xun, E-mail: maxym@nwu.edu.cn
Received Date: 2017-08-22
Rev Recd Date: 2017-11-01

Available Online: 2021-01-23

Publish Date: 2018-01-10

Abstract

Abstract

The n-heptane extraction residue (H-CT) from heavy medium and low temperature coal tar made in northern Shaanxi by n-heptane was reacted with formaldehyde. The product (P) was divided into n-heptane soluble (HS-P), n-heptane insoluble but toluene soluble (HI-TS-P), toluene insoluble but quinoline soluble (TI-QS-P) and quinoline insoluble (QI-P). The structure and composition of P were analyzed by means of GC-MS, TG-FTIR and FT-IR. The results show that P has more contents of TI-QS-P, oxygen atoms and a higher C/H atom ratio comparing with H-CT. The contents of HS-P, HI-TS-P, TI-QS-P and QI-P are 11.63%, 26.42%, 57.08% and 4.88%, respectively. HS-P and HI-TS-P contain mainly neutral components (mainly aromatics), few acidic components (mainly phenols), and some heteroatom compounds including O, N, S. TI-QS-P, with highly thermal stability, is rich in carbonyl groups, methylene bridge bonds and fused ring aromatic compounds. Besides, it also contains phenolic hydroxyl groups and aromatic ring substitutes.
- medium and low temperature coal tar,
- phenol-formaldehyde reaction,
- polymerization,
- extraction,
- separation and analysis

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References(30)

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