Coke oven gas: Availability, properties, purification, and utilization in China

Razzaq, Rauf; Li, Chunshan; Zhang, Suojiang

doi:10.1016/j.fuel.2013.05.070

Cited by 268 publications

(127 citation statements)

References 90 publications

(111 reference statements)

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“…As well known, coke oven gas is a by-product of coal carbonization to coke which is co-generated during the dry distillation process [2] and it clearly reflects the characteristics of parent coal. Typically, 1.25-1.65 t of coal produces 1 t of coke, in connection with approximately 300-360 m 3 of COG (6-8 GJ/t coke), while currently 20%-40% of produced COG is normally utilized as fuel in the actual coke oven [3]. As an indication, Table 1 shows the energy balance for a typical coke-making plant along with different raw materials and product distribution [4].…”

Section: Introductionmentioning

confidence: 99%

Accidental Continuous Releases from Coal Processing in Semi-Confined Environment

2013

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Notwithstanding the enforcement of ATEX EU Directives (94/9/EC of 23 March 1994) and safety management system application, explosions in the coal sector still claim lives and cause huge economic losses. Even a consolidated activity like coke dry distillation allows the opportunity of preventing explosion risk connected to fugitive emissions of coke oven gas. Considering accidental releases under semi-confined conditions, a simplified mathematical approach to the maximum allowed gaseous build-up is developed on the basis of the intrinsic hazards of the released compound. The results will help identifying and assessing low rate release consequences therefore to set-up appropriate prevention and control measures. The developed methodology was tested at the real-scale and validated by numerical computational fluid dynamics (CFD) simulations showing the effectiveness of the methodology to evaluate and mitigate the risk connected to confined hazardous releases.

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Section: Introductionmentioning

confidence: 99%

Accidental Continuous Releases from Coal Processing in Semi-Confined Environment

2013

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“…During this process, the volatile matters leave the coal mass which is called coke oven gas [4]. The energy consumed for coking process is about 3.5 GJ/ton of coke [8].…”

Section: Met Coke Productionmentioning

confidence: 99%

“…COG is a source of energy and is generally used to preheat the blast furnace. Lately, it become more common that COG is employed in the gas turbine cogeneration for producing electricity which means that the production from coking coal yields both met coke and COG that both can be utilized in power generation [4].…”

Section: Introductionmentioning

confidence: 99%

Comparison of metallurgical coke and lignite coke for power generation in Thailand

Ratanakuakangwan

Tangjitsitcharoen

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. This paper presents and compares two alternatives of cokes in power generation which are the metallurgical coke with coke oven gas and the coke from lignite under the consideration of the energy and the environment. These alternatives not only consume less fuel due to their higher heat content than conventional coal but also has less SO 2 emission. The metallurgical coke and its by-product which is coke oven gas can be obtained from the carbonization process of coking coal. According to high grade coking coal, the result in the energy attitude is not profitable but its sulfur content that directly affects the emission of SO 2 is considered to be very low. On the other hand, the coke produced from lignite is known as it is the lowest grade from coal and it causes the high pollution. Regarding to energy profitability, the lignite coke is considered to be much more beneficial than the metallurgical coke in contrast to the environmental concerns. However, the metallurgical coke has the highest heating value. Therefore, a decision making between those choices must be referred to the surrounding circumstances based on energy and environment as well as economic consideration in the further research.

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“…Coke oven gas (COG) is a byproduct gas produced in the process of coal carbonization for the manufacture of metallurgical cokes used as reducing agents for the reduction of iron ore. Its main constituents are -by volume of dried gas -H 2 (48-55%), CH 4 (28-30%), CO (5-7%), N 2 (1-3%), and CO 2 (2-3%) [4,5]. COG has been mainly used as heat source to maintain the temperature of coke oven [2,4,[6][7][8]. In the steel industry, the generated CH 4 and CO 2 are widely suspected of contributing to the greenhouse effect, giving rise to environmental pollution.…”

Section: Introductionmentioning

confidence: 99%

Combined H 2 O and CO 2 reforming of coke oven gas over Ca-promoted Ni/MgAl 2 O 4 catalyst for direct reduced iron production

Koo

Lee

Jung

et al. 2015

Fuel

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Coke oven gas: Availability, properties, purification, and utilization in China

Cited by 268 publications

References 90 publications

Accidental Continuous Releases from Coal Processing in Semi-Confined Environment

Accidental Continuous Releases from Coal Processing in Semi-Confined Environment

Comparison of metallurgical coke and lignite coke for power generation in Thailand

Combined H 2 O and CO 2 reforming of coke oven gas over Ca-promoted Ni/MgAl 2 O 4 catalyst for direct reduced iron production

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