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Content archived on 2022-12-23

Development of a resource conserving and environmental protecting coking system: jumbo coking reactor

Objective



The new resource-conserving and environment protecting coking system is based on individual, independent Jumbo Coking Reactors with rigid side walls.

The construction and process essentials of the new coking system are:

1) the individual reactor system with huge chamber dimensions and rigid side walls.
2. Coal pre-heating in direct combination with Coke Dry Quenching (CDQ).
3. Programmed Heating.
4. Integrated components and systems without environmental impact.

The new coking system will be developed to operational maturity during the next 5 years on a Demonstration Plant which will be erected on the premises of the PROSPER Coke Plant and will include:

1. Two Jumbo Coking Reactors as prototypes of the two construction variations: the 'B' type with the bottom arranged regenerator (the traditional construction type), and the 'S' type with the side-arranged regenerator (a new construction approach with particular advantages).

2. A Pusher Machine.

3. Two Coke Cassettes for hot coke transfer and transportation to the CDQ plant. At the Demonstration Plant only: dry coke cooling.

4. A pre-heater and a permanently connected charging chain conveyor based on pre-carbon technology.

Both reactor chambers will have the dimensions 850 mm x 10 m x 10 m and are exactly half the length of the first industrial design with a capacity of 100 t. coke/reactor.

Both Jumbos have been laid out for pre-heated coal charging. At 1350 deg. C flue temperature a coking time of 24 hours is expected.

The underfiring will be carried out on the basis of lean gas only: i.e. blast furnace gas. At the Demonstration Plant the lean gas is a synthetic gas of a low colorific value made of coke oven gas and waste gas. The rigid side walls consist of I-beams (Jumbo 'B' type) and reinforced concrete (Jumbo 'S' type).

The chamber-facing liners are made of superdense silica with a thickness of only 60 mm.

A sophisticated high-tech heat insulation system will keep heat surface loss to a minimum.

The door sealing is also a new approach of the engineering study group and has been designed on three different sealing levels, according to three different temperature levels (1000 deg. C, 400 deg. C, 100 deg. C).

Topic(s)

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Call for proposal

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Funding Scheme

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Coordinator

EUROPAEISCHES ENTWICKLUNGSZENTRUM FUER KOKEREITECHNIK GMBH
EU contribution
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Address
FRANZ-FISCHER-WEG, 61
45307 ESSEN
Germany

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Participants (13)