coke dry quenching industrial efficiency technology

specializing in the production of large, medium and small concrete mixers, concrete mixing stations, stabilized soil mixing stations and other equipment. It is a heavy industry enterprise integrating R & production and sales.

Coke Dry Quenching Industrial Efficiency Technology ...

Coke Dry Quenching (CDQ) is an alternative to the traditional wet quenching of the coke. Coke is cooled using an inert gas in dry cooling plant, instead of cooling by sprayed water which results in high CO 2 emissions and thermal energy loss. This process allows the recovery of the thermal energy in the quenching gas which can then be used for the production of steam and electricity, for ...

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Coke Stabilization Quenching Industrial Efficiency ...

Coke Stabilization Quenching (CSQ) is a new wet quenching technology which as of 2007 was only applied in Germany. It brings the hot coke into contact with water from both top and bottom. High quenching rate and low reaction time is the essence of the process. Dust emissions as low as 6 g/t coke have been achieved. Coke moisture after the CSQ is approx 2%.

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Coke Dry Quenching (CDQ) System NIPPON STEEL ENGINEERING

Coke Dry Quenching (CDQ) System. CDQ is a heat recovery system to cool the hot coke from coke ovens. It is one of the most renowned energy-efficient and environmentally-friendly facilities within steel production. CDQ is a system where hot coke removed from coke ovens at a temperature of approximately 1,000°C is cooled and kept dry with inert ...

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Coke Dry Quenching (CDQ) Steel Plantech

CDQ (Coke Dry Quenching) is a gradual coke quenching system, and improves coke strength and coke size distribution. Consequently, while the blending ratio of inexpensive non- or slightly-caking coal for coke oven material is only approx. 15% in case of CWQ (Coke Wet Quenching) system, it can be increased up to approx. 30% by CDQ, resulting in a ...

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3A5. Coke Dry Quenching Technology (CDQ)

3A5. Coke Dry Quenching Technology (CDQ) 1. Overview˜ ˜ Overview of CDQ (Coke Dry Quenching) system˜ The coke oven consists of plate-like carbonization chambers alternately arranged in a sandwich form to achieve higher thermal efficiency in carbonization. Raw material placed in the carbonization chambers is heated to a

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Coke dry quenching and utilization of its waste heat for ...

Dec 20, 2009  Coke dry quenching and utilization of its waste heat for electricity in iron and steel industry Abstract: Iron and steel industry is a typical energy intensive industry. On account of this, it is an important task for the iron and steel industry to obtain an obvious effect from energy conservation in the aspects of energy saving technology ...

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Where is the Technology Going? – Clean Air Council

Dry Quenching. Coke is cooled using inert gas instead of water spray. Lower CO2 emissions and lower thermal energy loss; Heat exchange offers more efficiency. Quench gas heat can be used for electricity production, CHP, or preheating of coal; Process is completely enclosed. Lower PM Emissions than wet quenching. Online dust catchers

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Coke Making: Most Efficient Technologies for Greenhouse ...

Jul 19, 2019  Habashi F (2016) Dry quenching: clean technology in coke production. Coal Age 121(5):40–41 Google Scholar Hanrot F, Sert D, Delinchant J, Pietruck R, Bürgler T, Babich A, Fernández M, Alvarez R, Diez M A (2009) CO 2 mitigation for steelmaking using charcoal and plastic wastes as reducing agents and secondary raw materials.

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Blue-coke production technology and the current state-of ...

Jan 01, 2020  Coke quenching. In the industrial blue-coke production, water or waste water is mostly adopted as the quenching medium, which is known as coke wet quenching (CWQ). The CWQ technology consumes a large amount of water. The sensible heat of coke is totally lost during CWQ.

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Improvement of the environmental performance of coke

Coke Quenching Technology FHuhn CP-CO AIST Technical Meeting - 18/19/2013 - Pittsburgh PA Principle routes for coke quenching (II) Wet Quenching 5 Pro‘s : Low Investment Costs (CAPEX) Technique quite simple Most applied technique in Western world Con‘s: Sensible heat of the red hot (i.e. 50% of the underfiring heat!) lost

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Operation of Cutting-Edge Coke Oven Having all of ...

industrial furnaces and Paul Wurth S. A. (PW) in Luxembourg skillful at the upstream process of iron-making. PWIHI has aimed to, together with IHI’s achievements such as blast furnace design and equipment, and coke dry quenching systems, provide Japanese customers (mainly Japanese ironworks) with coke ovens of which technology is held by

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Order for Largest Coke Dry Quenching in the World Received ...

Nov 26, 2020  ※1 CDQ is an abbreviation for "Coke Dry Quenching." CDQ is composed of a sealed cooling tower containing a prechamber and cooling chamber. Red-hot coke that is dry distilled in the coke oven is cooled using the inert gas in the cooling tower, while recovering the sensible heat of the red-hot coke, which was previously dispersed, in a boiler as steam.

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UDC 669 . 162 . 2 Development of Ironmaking Technology

and coke ovens, (4) Use of economical raw materials (use of pisolite and slightly caking coal in large quantities, etc.), (5) Labor saving (operation optimization of sintering machines and coke-dry-quenching (CDQ) equipment, continuous unloaders, automation of coke oven operation and reduction of the work period of blast furnace relining, etc.),

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Conceptual Design of a Coke Dry Quenching Gasification ...

In this paper, a coke dry quenching gasification (CDQG) technology using coke oven gas (COG) and steam to quench the incandescent coke is proposed. The distinct advantages of this technology include energy conservation, pollution reduction, and improvement of coke quality and full use of resources. Based on Gibbs free energy minimization principle, the flow rate and composition of the syngas ...

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Dry Quenching of Hot Coke – IspatGuru

Apr 25, 2013  Coke dry quenching (CDQ) is an energy saving process used during the production of coke in the coke oven battery. A CDQ plant is also called coke dry cooling plant (CDCP). In the traditional CWQ (coke wet quenching) process, the red-hot coke which is pushed from the coke oven is cooled by spraying water on the hot coke.

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Coke Dry Cooling Plant Coke Dry Quenching Solutions ...

Coke Dry Quenching Traditionally dry quenching process is being adopted for the cooling of Coke produced from the Coke Oven Battery in Steel Plants. Water is used as cooling media to cool the hot coke which not only consumes large volume of water but also releases harmful pollutants which is also not permitted buy the government latest regulations.

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China’s Coke Problem - University Blog Service

Feb 08, 2014  Coke itself burns very cleanly, however its production emits large concentrations of particulate matter. This section focuses on coke dry quenching (CDQ), a technology that can significantly lower black carbon emissions from coke production. Because of China’s major role in coke production, CDQ adoption in China is of particular interest.

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Iron and Steel Industrial Efficiency Technology Measures

Iron and steel are key products for the global economy. Since 2000, global steel production has grown by 75%, reaching 1.49 billion tons of steel in 2011. 1 The sector is the largest industrial emitter of CO 2 (with direct emissions of 2.16 Gt in 2006) and second largest industrial user of energy (consuming 24 EJ in 2006). Although considerable improvements have been made in recent years, the ...

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What is the role of coke oven technology under ...

Jul 15, 2021  Coke dry quenching (CDQ) technology is energy-efficient and produces lower emissions, while also allowing for electricity generation using waste heat recovery. As part of the Chinese government plan, CDQ technology has been promoted as a target in all three five-year plans since 2002 and it is required by law for new ovens.

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Improvement of modern technologies of coke production ...

Technology of coke dry cooling compared to wet quenching is considered as one of the important factors in increasing the environmental safety of coke production. Coke dry cooling should also be considered as a technology for generating energy without releasing greenhouse gas– CO 2. The achieved efficiency is estimated in comparison with the ...

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Coke Dry Quenching (CDQ) - Trading in China, Industrial ...

Coke dry quenching appears as the most valid system to reduce air pollution allowing at the same time a remarkable energy recovery or saving, especially when it is associated with coal preheating. In addition, dry quenched coke is harder and stronger, and its moisture content is much lower than that of wet quenched coke.

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Coke Making: Most Efficient Technologies for Greenhouse ...

Jul 19, 2019  Habashi F (2016) Dry quenching: clean technology in coke production. Coal Age 121(5):40–41 Google Scholar Hanrot F, Sert D, Delinchant J, Pietruck R, Bürgler T, Babich A, Fernández M, Alvarez R, Diez M A (2009) CO 2 mitigation for steelmaking using charcoal and plastic wastes as reducing agents and secondary raw materials.

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What is the role of coke oven technology under ...

Jul 15, 2021  Coke dry quenching (CDQ) technology is energy-efficient and produces lower emissions, while also allowing for electricity generation using waste heat recovery. As part of the Chinese government plan, CDQ technology has been promoted as a target in all three five-year plans since 2002 and it is required by law for new ovens.

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China's coke industry: Recent policies, technology shift ...

Dec 01, 2012  Coke dry quenching is a key technology to improve the energy efficiency of coke making. Since the penetration of coke dry quenching technology is still very low (23% by 2010) in China, more actions should be taken to improve the application of coke dry quenching technology.

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Conceptual Design of a Coke Dry Quenching Gasification ...

In this paper, a coke dry quenching gasification (CDQG) technology using coke oven gas (COG) and steam to quench the incandescent coke is proposed. The distinct advantages of this technology include energy conservation, pollution reduction, and improvement of coke quality and full use of resources. Based on Gibbs free energy minimization principle, the flow rate and composition of the syngas ...

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Utilization of Excess Dry-Quenching ... - Coke and Chemistry

Nov 27, 2020  Environmental protection is a growing priority around the world. Industrial enterprises are the basic pollution sources. At coke plants with dry quenching of the coke, excess circulating gas is produced and must be constantly removed from the closed gas loop [1, 2].In the present work, we consider two operational systems for utilization of the excess circulating gas and report relevant ...

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Advances in Green Steel Making Technology - A Review

• The coke dry quenching coke has lower moisture content than the coke wet quenching coke and the coke ratio of blast furnace can be reduced. • A high annual operating ratio of 95% can be achived by combining the double flue technology through appropriate refractories and highly reliable equipments.

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Energy Saving Technology for Iron Steel Making Process

Applicable SPCO’s Technology for CDM Process Technology Coke oven - CDQ (Coke Dry Quenching Process) - Coke oven gas recovery Sintering machine - (WHRS) Waste Heat Recovery System ... High efficiency lime calcining kiln Rolling mill - Regenerative burner system.

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Efficiency

1 The cement, steel and plastics industries may adopt more energy efficient processes, such as switching to dry kilns, adopting coke dry quenching or naphtha catalytic cracking. This has the potential to reduce their emissions by 10 percent, 15-20 percent and 15-20 percent, respectively.

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Thermodynamic Analysis of a New Coke Dry Quenching Technology

In this paper, a new coke dry quenching (n-CDQ) technology is proposed. The advantages of this technology are energy conservation, pollution reduction, coke quality improvement and the full use of resources. Based on the idea of the n-CDQ technology, process modeling is conducted using the process simulator of Aspen Plus. The impacts of the flow of the coke-cooling coke oven gas and the ...

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Coke Manufacturing - IFC

as dry quenching. The coke is screened and sent to a blast furnace or to storage. Coke oven gas is cooled, and by-products are recovered. Flushing liquor, formed from the cool-ing of coke oven gas, and liquor from primary coolers contain tar and are sent to a tar decanter. An electrostatic precipitator is used to remove more tar from coke oven gas.

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Deep learning-based soft-sensing method for operation ...

Jul 29, 2016  A deep learning-based soft-sensing method for operation optimization of coke dry quenching process is put forward in this paper. By defining the economic efficiency, the data with high economic efficiency is used for modeling and optimizing the CDQ operating variable, i.e. supplementary air flow rate (F SA). The experimental results show that ...

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Energy saving and some environment improvements in coke ...

The coke dry quenching (CDQ) process allows recovery of the thermal energy in the quenching gas by production of steam and electricity, district heating and preheating of coking coal [17]. A CDQ ...

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