Current situation and development prospects of metallurgical by-product gas utilization in China's steel industry

Peng, Sui; Ren, Binglang; Wang, Jingsong; Wang, Guang; Zuo, Haibin; Xue, Qingguo

doi:10.1016/j.ijhydene.2023.04.050

Cited by 13 publications

(3 citation statements)

References 91 publications

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“…In July 2021, the hydrogen-rich metallurgical industrial experiments were completed, with a blast oxygen content of 50%, and the injection of coke oven gas and decarbonized gas at the tuyere was achieved. In 2022, the goal of full oxygen smelting was achieved, and the injection of decarbonized heating gas and coke oven gas was completed at the tuyere and furnace stack [54][55][56]. Baowu Group's experimental team has completed industrial production tests under conditions ranging from 35% oxygen to 50% oxygen [57].…”

Section: Research Status Of New Low-carbon Technology In Chinamentioning

confidence: 99%

Recent Status of Production, Administration Policies, and Low-Carbon Technology Development of China’s Steel Industry

Qiao,

Wang

2024

Metals

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In 2023, China’s crude steel production amount reached 1.019 billion tons, and the energy consumption of China’s steel industry amount reached 561 million tons of coal. China’s steel industry, with its dominant reliance on coal for energy and the primary use of blast furnaces and converters in production processes, as well as its massive output, has become the main field for achieving China’s “carbon peaking” and “carbon neutrality” goals. Firstly, this article summarizes the current production status of the steel industry and the situation of carbon emissions in the steel industry. Secondly, it discusses the dual-carbon policies based on the national and steel industry levels and outlines the future directions for China’s steel industry. Subsequently, it analyzes the current state of research and application of mature and emerging low-carbon technology in China’s steel industry and details the low-carbon plans of China’s steel companies using the low-carbon technology roadmaps of two representative steel companies as examples. Finally, the article gives policy suggestions for the further carbon reduction of China’s steel industry. The purpose of this paper is to show the efforts and contributions of China’s steel industry to the early realization of its “carbon peaking” and “carbon neutrality” goals.

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Section: Research Status Of New Low-carbon Technology In Chinamentioning

confidence: 99%

Recent Status of Production, Administration Policies, and Low-Carbon Technology Development of China’s Steel Industry

Qiao,

Wang

2024

Metals

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“…In addition, waste gases from the iron and steel industry, such as blast furnace gas, coke oven gas, and Linz−Donawitz gas, are also potential sources of CO. 4−6 These waste gases are pretreated to become a CO/N 2 mixed gas of different compositions (e.g., 50%/50% and 30%/70%, v/ v). 7 Due to their similar physical characteristics, such as molecular diameters (3.76 vs 3.64 Å) and boiling temperatures (82 vs 78 K), 8 CO and N 2 are difficult to separate.…”

Section: Introductionmentioning

confidence: 99%

“…Carbon monoxide (CO) is an important chemical raw material, which can be used to produce a variety of chemical products and intermediates, including methanol, acetic acid, phosgene, and so on. − The primary source of CO chemical feedstocks is syngas, which can be generated from coal, natural gas, or biomass. In addition, waste gases from the iron and steel industry, such as blast furnace gas, coke oven gas, and Linz–Donawitz gas, are also potential sources of CO. − These waste gases are pretreated to become a CO/N 2 mixed gas of different compositions (e.g., 50%/50% and 30%/70%, v/v) . Due to their similar physical characteristics, such as molecular diameters (3.76 vs 3.64 Å) and boiling temperatures (82 vs 78 K), CO and N 2 are difficult to separate.…”

Section: Introductionmentioning

confidence: 99%

The CO Working Capacity of Ni-MOF-74 and Corresponding Operating Conditions for CO/N₂ Adsorption Separation

Wang,

Li,

Tang

et al. 2024

Ind. Eng. Chem. Res.

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Ni-MOF-74 is among the most promising candidates for CO adsorption due to its highest CO adsorption capacity. However, the feasibility of using Ni-MOF-74 in actual CO/N 2 pressure swing adsorption (PSA) processing cannot be reliably inferred based solely on its adsorption capacity at normal temperature and pressure. Hence, we systematically studied its CO working capacity and regenerability at different test temperatures and pressure ranges by single-component static and binarycomponent dynamic (CO/N 2 , 50%/50% and 30%/70%, v/v) experiments. The static experiments preliminarily indicated an appropriate operating temperature of 100 °C with adsorption− desorption pressures in the range of 3.0−0.1 bar for the PSA process. The working capacity and regenerability of CO were evaluated as 3.41 mmol•g −1 and 66.21% (adsorption−desorption pressure: 3.0−0.1 bar, 100 °C). A higher temperature reduces the binding force between CO and Ni-MOF-74, so that more CO is desorbed, which leads to an increase in the working capacity and regenerability of CO. Furthermore, through CO/N 2 binarycomponent dynamic breakthrough experiments, the optimal operating temperature and CO adsorption partial pressure for the PSA process were determined as 100 °C and 1.5 bar at a total desorption pressure of 0.2 bar. Typically, for a CO/N 2 composition of 50%/50%, the CO working capacity and regenerability were 2.66 mmol•g −1 and 85.25% at 100 °C and a CO partial pressure of 1.5 bar (total CO adsorption pressure of 3.0 bar) at a total desorption pressure of 0.2 bar. These results may guide PSA process design and optimization for adsorbents with strong CO binding ability.

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Hydrogen-Based Reduction Technologies in Low-Carbon Sustainable Ironmaking and Steelmaking: A Review

Sun,

Pang,

Barati

et al. 2023

J. Sustain. Metall.

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Current situation and development prospects of metallurgical by-product gas utilization in China's steel industry

Cited by 13 publications

References 91 publications

Recent Status of Production, Administration Policies, and Low-Carbon Technology Development of China’s Steel Industry

Recent Status of Production, Administration Policies, and Low-Carbon Technology Development of China’s Steel Industry

The CO Working Capacity of Ni-MOF-74 and Corresponding Operating Conditions for CO/N₂ Adsorption Separation

Hydrogen-Based Reduction Technologies in Low-Carbon Sustainable Ironmaking and Steelmaking: A Review

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Current situation and development prospects of metallurgical by-product gas utilization in China's steel industry

Cited by 13 publications

References 91 publications

Recent Status of Production, Administration Policies, and Low-Carbon Technology Development of China’s Steel Industry

Recent Status of Production, Administration Policies, and Low-Carbon Technology Development of China’s Steel Industry

The CO Working Capacity of Ni-MOF-74 and Corresponding Operating Conditions for CO/N2 Adsorption Separation

Hydrogen-Based Reduction Technologies in Low-Carbon Sustainable Ironmaking and Steelmaking: A Review

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The CO Working Capacity of Ni-MOF-74 and Corresponding Operating Conditions for CO/N₂ Adsorption Separation