Hydrogen Production by Catalytic Partial Oxidation of Coke Oven Gas in BaCo0.7Fe0.3-xZrxO3-δCeramic Membrane Reactors

Yao, Weilin; Cheng, Hongwei; Wang, Pengfei; Lu, Xionggang; Zou, Xingli; Xu, Qian

doi:10.1051/matecconf/20166704002

Cited by 2 publications

(1 citation statement)

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“…In this sense, attention has been paid to oxygen-selective ceramic membranes, which integrate oxygen separation and PO reaction in a single stage; this integrated step provides significant reduction in energy demand and capital investment. This approach is found in the open literature of hydrogen production by partial oxidation of COG. − Furthermore, the oxygen permeable reactor has been patented for the partial oxidation of COG . Nb-perovskite-based ceramic membranes (BaCo 0.7 Fe 0.2 M 0.1 O 3‑δ , recognized as “BCFM”) where “M” used to be a transition metal such as Nb, Ta, or Zr and “δ” is the concentration of oxygen vacancies in the structure are widely studied.…”

Section: Coke Oven Gas Chemical Conversion To Feedstockmentioning

confidence: 99%

Hydrogen Recovery from Coke Oven Gas. Comparative Analysis of Technical Alternatives

Moral

Ortiz-Imedio

Ortiz

et al. 2022

Ind. Eng. Chem. Res.

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The recovery of energy and valuable compounds from exhaust gases in the iron and steel industry deserves special attention due to the large power consumption and CO 2 emissions of the sector. In this sense, the hydrogen content of coke oven gas (COG) has positioned it as a promising source toward a hydrogen-based economy which could lead to economic and environmental benefits in the iron and steel industry. COG is presently used for heating purposes in coke batteries or furnaces, while in high production rate periods, surplus COG is burnt in flares and discharged into the atmosphere. Thus, the recovery of the valuable compounds of surplus COG, with a special focus on hydrogen, will increase the efficiency in the iron and steel industry compared to the conventional thermal use of COG. Different routes have been explored for the recovery of hydrogen from COG so far: i) separation/purification processes with pressure swing adsorption or membrane technology, ii) conversion routes that provide additional hydrogen from the chemical transformation of the methane contained in COG, and iii) direct use of COG as fuel for internal combustion engines or gas turbines with the aim of power generation. In this study, the strengths and bottlenecks of the main hydrogen recovery routes from COG are reviewed and discussed.

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