One-dimensional model of heat-recovery, non-recovery coke ovens. Part III: Upper-oven, down-comers and sole-flues

Buczyński, Rafał; Weber, Roman; Kim, Ronald; Schwöppe, Patrick

doi:10.1016/j.fuel.2016.01.087

Cited by 22 publications

(3 citation statements)

References 8 publications

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“…[5]. In [6] this research paper describes gas pressure in the oven chambers should be positive and higher than pressure at any point of adjacent heating chamber during whole coking period. In [7] a new design of optimum control of temperature of gas coming out of the oven into the stand pipe is about 600-700 ℃, and it leaves the hydraulic mains at the temperature of 80-85℃ [8].In [9] in this system of ovens, paired vertical flues are envisaged which are interconnected with each other with a provision for recirculation of products of combustion.…”

Section: Introductionmentioning

confidence: 99%

Optimization of specific heating consumption of coke oven plant using flow meter calibration modification

Mahato¹,

Agarwal²,

Jain³

2023

3C Tecnología

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Coke oven plant produces coke which acts as a reducing agent in blast furnaces. So, coke is an important material which is also called as a reducing agent. Coke is basically used for manufacturing of steel materials and extraction of metals. In an integrated steel plant coke is a prime material for making high grade of steels. In this present research work, the calibration of flow meter is modified. By this modification of gas flow meter calibration coke oven gas flow reduced from 17100Nm3/hrs to 16900Nm3/hrs, such as 200 Nm3 on hourly basis saving without any extra manpower cost. The proposed method is also cost effective as it saves Rs 6483000 every month for producing coke. This methodology is also helpful for reducing the manufacturing cost of coke in a recovery type of coke plant and stable oven operation and prolongation of coke oven life. Future advancements in this technique will allow us to minimize the need for money, which will revolutionize the nation's economy.

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Section: Introductionmentioning

confidence: 99%

Optimization of specific heating consumption of coke oven plant using flow meter calibration modification

Mahato¹,

Agarwal²,

Jain³

2023

3C Tecnología

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“…The heat is transferred in three ways, i.e., conduction, convection, and radiation. Merrick, Buczynski, their co-workers, and others take a comparable conduction model approach. − All three methods depend on the temperature difference in the heat transmitting media.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Thermal Efficiency of Recovery Stamp Charged Cokemaking

et al. 2018

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The cokemaking process is a complex phenomenon. The coke strength properties depend on the thermal conditions that prevail during coal carbonization to a large extent. The thermal conditions are influenced by operating parameters, viz., flue temperature, wall temperature, carbonization time, bulk density, and moisture content. The flue temperature and coking time are dependent variables with an inverse relationship. The heat required for making coke has a significant impact on the coking time and quality of the coke. Maintaining optimum thermal conditions in the recovery coke oven also helps in the conservation of energy and economy of the industry. In the present study, the authors have assessed the material balance, heat balance, and heat losses of a recovery stamp charged coke oven. This study helps further the overall understanding of heat flow that directly affects the heating rate into the coal cake, which allows for obtaining the optimal heat requirements for producing the desired quality of coke with an optimal coking/carbonization time.

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“…To take full advantage of dry quenching technology, it is necessary to improve the dry quenching device and reduce investment and operation cost. To solve these problems, we developed a new dry quenching technology for coke oven gas. , Pressure drop of charred layer in the dry quenching furnace is an important parameter to evaluate the dry quenching system and an important measurement index of energy consumption and the running cost. ,,− …”

Section: Introductionmentioning

confidence: 99%

Characteristics of Pressure Drop of Charred Layer in Coke Dry Quenching over Coke Oven Gas

Zhao

Zhang

2017

Energy Fuels

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In a self-designed experimental apparatus, coke oven gas, H 2 , CO, CH 4 , CO 2 , and N 2 as coke dry quenching medium, coke as the bed filler, and the influences of particle shape, particle size, the gas flow, and gas species on the bed pressure drop characteristics were investigated. Furthermore, the mathematical model of coke bed pressure drop of coke dry quenching by coke oven gas was established. The results show that coke bed pressure drop increases with the increasing of the gas flow and decreases with the coke particle size increasing. When the gas flow is larger and the particle size of the coke is smaller, the coke bed pressure drops obvious change. It was also found that the coke bed pressure drop has a direct relationship with gas properties, such as density, viscosity, and so on. For the different gas (H 2 , CO, CH 4 , CO 2 , and N 2 ) in the same bed thickness of coke, the order of bed pressure drop has the following relationship: P CO2 > P N2 ≈ P CO > P CH4 > P H2 . Under the coke oven gas as coke dry quenching medium, the mathematical model of coke bed pressure drop of coke dry quenching by coke oven gas is established as following,Compared to the classic Ergun empirical formula, the bed pressure data obtained by the equation established in this paper would result in a better fit to the data points.

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One-dimensional model of heat-recovery, non-recovery coke ovens. Part III: Upper-oven, down-comers and sole-flues

Cited by 22 publications

References 8 publications

Optimization of specific heating consumption of coke oven plant using flow meter calibration modification

Optimization of specific heating consumption of coke oven plant using flow meter calibration modification

Assessment of Thermal Efficiency of Recovery Stamp Charged Cokemaking

Characteristics of Pressure Drop of Charred Layer in Coke Dry Quenching over Coke Oven Gas

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