Journal of Special Equipment >

2026 , Vol. 1 >Issue 1: 22 - 35

DOI: https://doi.org/10.27022/j.issn2097-7697.2026.01.003

Advanced Manufacturing

Key Manufacturing Technologies for Ultra-large Hydrogenation Reactors

  • JIANG Wenchun ,
  • ZHAO Chunhui ,
  • WANG Jinguang ,
  • DONG Wangping ,
  • YUAN Jijun ,
  • PAN Xiaodong ,
  • LEI Chenglong ,
  • TU Shandong
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  • 1. College of New Energy, China University of Petroleum (East China) Qingdao 266580;
    2. Sinopec Engineering Incorporation Beijing 100101;
    3. CFHI Dalian Nuclear Power and Petrochemical Co., Ltd. Dalian 116113;
    4. Erzhong (Zhenjiang) Heavy Equipment Co., Ltd. Zhenjiang 212000;
    5. Qingdao Lanshi Heavy Machinery Equipment Co., Ltd. Qingdao 266426;
    6. School of Mechanical and Power Engineering, East China University of Science and Technology Shanghai 200237

Received date: 2026-01-12

  Online published: 2026-01-30

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Abstract

Hydrogenation reactors are the core equipment for the integrated refining and petrochemical operations and are crucial to safeguarding national energy security. With the petrochemical industry evolving towards large-scale of “10-million-ton” refining capacities, hydrogenation reactors are exhibiting a significant trend towards ultra-large diameters and ultra-large wall thicknesses. As a consequence, ensuring the intrinsic safety of the equipment while achieving lightweighting design becomes a key challenge for the industry. This paper comprehensively reviews the development of China’s hydrogenation reactor from the import dependence, through independent innovation, to achieving global leadership. Then, the integrated construction system satisfying the extreme-dimensional manufacturing demand is introduced, which is guided by advanced structural design, centered on efficient and high-quality manufacturing and precise residual stress control, and safeguarded by full-coverage non-destructive testing. Based on this system, China successfully developed the world’s first 2 000-ton class coal liquefaction reactor and the 3 000-ton class slurry bed reactor. As a result, the conversion rate of residual oil has increased from 30% to 95% and the batch production of extra-large hydrogenation reactors has been achieved and reliably deployed in multiple million-ton-class facilities. These accomplishments firmly marked China’s construction technology for ultra-large hydrogenation reactors has reached an internationally leading level.

Key words： Ultra-large hydrogenation reactors; Design; Fabrication; Inspection

Cite this article

JIANG Wenchun , ZHAO Chunhui , WANG Jinguang , DONG Wangping , YUAN Jijun , PAN Xiaodong , LEI Chenglong , TU Shandong . Key Manufacturing Technologies for Ultra-large Hydrogenation Reactors[J]. Journal of Special Equipment, 2026 , 1(1) : 22 -35 . DOI: 10.27022/j.issn2097-7697.2026.01.003

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