Citation: Arif Ali, Chen Zhao. Direct liquefaction techniques on lignite coal: A review[J]. Chinese Journal of Catalysis, ;2020, 41(3): 375-389. doi: S1872-2067(19)63492-3 shu

Direct liquefaction techniques on lignite coal: A review

Arif Ali ^a, ,
Chen Zhao ^a,b

a Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China;
b Institute of Eco-Chongming, East China Normal University, Shanghai 200062, China

Received Date: 2 June 2019
Revised Date: 2 August 2019

Fund Project: This work was supported by the National Key Research and Development Program of China (2016YFB0701100), the National Natural Science Foundation of China (21573075), Institute of Eco-Chongming (ECNU-IEC-201902) and the Recruitment Program of Global Young Experts in China.

With the pressure owing to fossil oil shortages, direct liquefaction is attracting significant attention as a highly efficient and low-cost technique for lignite-to-fuel conversion. In this review, the diverse catalytic systems and mechanisms involved in lignite liquefaction are reviewed. The top five global technologies include IGOR (Germany), HTI (the USA), FFI (Russia), NEDOL (Japan), and Shenhua (China), which have already been applied in industrial scales. Among the five technologies, Shenhua (China) outputs as high as 3000 t/d using a suspended bed reactor, iron-based catalyst, and rehydrogenated recycled solvents (paraffin, aromatics, etc.). The conversion of lignite is quite difficult due to the presence of ionic bond and non-covalent interactions, such as hydrogen bonding; thus, it is well recognized that the catalytic liquefaction under relatively mild conditions is more feasible than non-catalytic liquefaction. Iron-based catalysts can efficiently facilitate the lignite liquefaction and promote the lignite cracking aided by a hydrogen-donor solvent; thus, they have attracted interest from researchers globally. The different liquefaction mechanisms of lignite including free radical, oxidation, alkanolysis, and hydrogenation lead to the corresponding products:preasphaltene and asphaltene, mixed carboxylic acids, mixed esters and ethers, and cyclic compounds, respectively. Therefore, the catalytic system of the lignite liquefaction process would be accordingly optimized and modified to afford different products.
- Direct liquefaction,
- Catalytic system,
- Mechanism of liquefaction,
- Lignite coal,
- Fe-based catalyst
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
16. [16]
17. [17]
18. [18]
19. [19]
20. [20]
21. [21]
22. [22]
23. [23]
24. [24]
25. [25]
26. [26]
27. [27]
28. [28]
29. [29]
30. [30]
31. [31]
32. [32]
33. [33]
34. [34]
35. [35]
36. [36]
37. [37]
38. [38]
39. [39]
40. [40]
41. [41]
42. [42]
43. [43]
44. [44]
45. [45]
46. [46]
47. [47]
48. [48]
49. [49]
50. [50]
51. [51]
52. [52]
53. [53]
54. [54]
55. [55]
56. [56]
57. [57]
58. [58]
59. [59]
60. [60]
61. [61]
62. [62]
63. [63]
64. [64]
65. [65]
66. [66]
67. [67]
68. [68]
69. [69]
70. [70]
71. [71]
72. [72]
73. [73]
74. [74]
75. [75]
76. [76]
77. [77]
78. [78]
79. [79]
80. [80]
81. [81]
82. [82]
83. [83]
84. [84]
85. [85]
86. [86]
87. [87]
88. [88]
89. [89]
90. [90]
91. [91]
92. [92]
93. [93]
94. [94]
95. [95]
96. [96]
97. [97]
98. [98]
99. [99]
100. [100]
101. [101]
102. [102]
103. [103]
104. [104]
105. [105]
1. [1]
  Xuejie Wang , Guoqing Cui , Congkai Wang , Yang Yang , Guiyuan Jiang , Chunming Xu . Research Progress on Carbon-based Catalysts for Catalytic Dehydrogenation of Liquid Organic Hydrogen Carriers. Acta Physico-Chimica Sinica, 2025, 41(5): 100044-0. doi: 10.1016/j.actphy.2024.100044
2. [2]
  Dan Li , Hui Xin , Xiaofeng Yi . Comprehensive Experimental Design on Ni-based Catalyst for Biofuel Production. University Chemistry, 2024, 39(8): 204-211. doi: 10.3866/PKU.DXHX202312046
3. [3]
  Huiwei Ding , Bo Peng , Zhihao Wang , Qiaofeng Han . Advances in Metal or Nonmetal Modification of Bismuth-Based Photocatalysts. Acta Physico-Chimica Sinica, 2024, 40(4): 2305048-0. doi: 10.3866/PKU.WHXB202305048
4. [4]
  Yushan Cai , Fang-Xing Xiao . Revisiting MXenes-based Photocatalysis Landscape: Progress, Challenges, and Future Perspectives. Acta Physico-Chimica Sinica, 2024, 40(8): 2306048-0. doi: 10.3866/PKU.WHXB202306048
5. [5]
  Yuanyin Cui , Jinfeng Zhang , Hailiang Chu , Lixian Sun , Kai Dai . Rational Design of Bismuth Based Photocatalysts for Solar Energy Conversion. Acta Physico-Chimica Sinica, 2024, 40(12): 2405016-0. doi: 10.3866/PKU.WHXB202405016
6. [6]
  Xue Liu , Lipeng Wang , Luling Li , Kai Wang , Wenju Liu , Biao Hu , Daofan Cao , Fenghao Jiang , Junguo Li , Ke Liu . Research on Cu-Based and Pt-Based Catalysts for Hydrogen Production through Methanol Steam Reforming. Acta Physico-Chimica Sinica, 2025, 41(5): 100049-0. doi: 10.1016/j.actphy.2025.100049
7. [7]
  Wang Wang , Yucheng Liu , Shengli Chen . Use of NiFe Layered Double Hydroxide as Electrocatalyst in Oxygen Evolution Reaction: Catalytic Mechanisms, Electrode Design, and Durability. Acta Physico-Chimica Sinica, 2024, 40(2): 2303059-0. doi: 10.3866/PKU.WHXB202303059
8. [8]
  Wen YANG , Didi WANG , Ziyi HUANG , Yaping ZHOU , Yanyan FENG . La promoted hydrotalcite derived Ni-based catalysts: In situ preparation and CO₂ methanation performance. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 561-570. doi: 10.11862/CJIC.20230276
9. [9]
  Zhiquan Zhang , Baker Rhimi , Zheyang Liu , Min Zhou , Guowei Deng , Wei Wei , Liang Mao , Huaming Li , Zhifeng Jiang . Insights into the Development of Copper-Based Photocatalysts for CO₂ Conversion. Acta Physico-Chimica Sinica, 2024, 40(12): 2406029-0. doi: 10.3866/PKU.WHXB202406029
10. [10]
  Fangxuan Liu , Ziyan Liu , Guowei Zhou , Tingting Gao , Wenyu Liu , Bin Sun . 中空结构光催化剂. Acta Physico-Chimica Sinica, 2025, 41(7): 100071-0. doi: 10.1016/j.actphy.2025.100071
11. [11]
  Zhuoyan Lv , Yangming Ding , Leilei Kang , Lin Li , Xiao Yan Liu , Aiqin Wang , Tao Zhang . Light-Enhanced Direct Epoxidation of Propylene by Molecular Oxygen over CuO_x/TiO₂ Catalyst. Acta Physico-Chimica Sinica, 2025, 41(4): 2408015-0. doi: 10.3866/PKU.WHXB202408015
12. [12]
  Jiapei Zou , Junyang Zhang , Xuming Wu , Cong Wei , Simin Fang , Yuxi Wang . A Comprehensive Experiment Based on Electrocatalytic Nitrate Reduction into Ammonia: Synthesis, Characterization, Performance Exploration, and Applicable Design of Copper-based Catalysts. University Chemistry, 2024, 39(6): 373-382. doi: 10.3866/PKU.DXHX202312081
13. [13]
  Qiangqiang SUN , Pengcheng ZHAO , Ruoyu WU , Baoyue CAO . Multistage microporous bifunctional catalyst constructed by P-doped nickel-based sulfide ultra-thin nanosheets for energy-efficient hydrogen production from water electrolysis. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1151-1161. doi: 10.11862/CJIC.20230454
14. [14]
  Yanan Liu , Yufei He , Dianqing Li . Preparation of Highly Dispersed LDHs-based Catalysts and Testing of Nitro Compound Reduction Performance: A Comprehensive Chemical Experiment for Research Transformation. University Chemistry, 2024, 39(8): 306-313. doi: 10.3866/PKU.DXHX202401081
15. [15]
  Wenlong LI , Xinyu JIA , Jie LING , Mengdan MA , Anning ZHOU . Photothermal catalytic CO₂ hydrogenation over a Mg-doped In₂O_3-x catalyst. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 919-929. doi: 10.11862/CJIC.20230421
16. [16]
  Kun WANG , Wenrui LIU , Peng JIANG , Yuhang SONG , Lihua CHEN , Zhao DENG . Hierarchical hollow structured BiOBr-Pt catalysts for photocatalytic CO₂ reduction. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1270-1278. doi: 10.11862/CJIC.20240037
17. [17]
  Xueting Feng , Ziang Shang , Rong Qin , Yunhu Han . Advances in Single-Atom Catalysts for Electrocatalytic CO₂ Reduction. Acta Physico-Chimica Sinica, 2024, 40(4): 2305005-0. doi: 10.3866/PKU.WHXB202305005
18. [18]
  Feng Han , Fuxian Wan , Ying Li , Congcong Zhang , Yuanhong Zhang , Chengxia Miao . Comprehensive Organic Chemistry Experiment: Phosphotungstic Acid-Catalyzed Direct Conversion of Triphenylmethanol for the Synthesis of Oxime Ethers. University Chemistry, 2025, 40(3): 342-348. doi: 10.12461/PKU.DXHX202405181
19. [19]
  Heng Zhang . Determination of All Rate Constants in the Enzyme Catalyzed Reactions Based on Michaelis-Menten Mechanism. University Chemistry, 2024, 39(4): 395-400. doi: 10.3866/PKU.DXHX202310047
20. [20]
  Jiajie Li , Xiaocong Ma , Jufang Zheng , Qiang Wan , Xiaoshun Zhou , Yahao Wang . Recent Advances in In-Situ Raman Spectroscopy for Investigating Electrocatalytic Organic Reaction Mechanisms. University Chemistry, 2025, 40(4): 261-276. doi: 10.12461/PKU.DXHX202406117

Get Citation

PDF

XML

Metrics

PDF Downloads(13)
Abstract views(1125)
HTML views(127)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142