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Content archived on 2022-12-27

COAL GASIFICATION - WASTE HEAT UTILIZATION [PHASE 1]

Objective

To design and construct a coal gasification demonstration plant for the testing and development of the Prenflo process. A 48 T/d PRENFLO unit is intended to convert a total of 24,000 tons of coal to +- 48 x 1,000,000 m3 n synthesis or fuel gas at a calorific value of +- 11,850 KJ/m3 under standard conditions. See projects LG /270/85/DE, LG/354/87/DE and LG/255/89/DE.L%
Construction and commissioning were completed in early 1986.
Three patent applications regarding the Prenflo process were filed by KRUPP KOPPERS during 1985:
1. Device for fixing samples in position;
2. Process for generating electrical energy in a combined cycle power plant with upstream coal gasification;
3. stuffing box seal.
The PRENFLO process is a pressurized version of the Koppers-Totzek process. This project is the first phase in a two-phase undertaking to develop the PRENFLO process for eventual industrial scale introduction into the market. The pressurized version of the entrained-flow process for the use of coal, injected as dry coal dust, is a new technology with a high gasifier unit capacity (1,000 to 2,500 T/d coal throughput), high thermal efficiency, high product gas quality and low environmental load. Sluicing members, coal feeding, reaction in the pressurized reactor, waste heat boiler, and gas purification unit are to be adapted to novel loads.
For the period covered by this contract (Phase 1) the pilot plant is being designed and constructed for test operations (Phase 2). The plant is located at the Technological Centre Saar of Saarbergwerke AG in Fuerstenhausen. The centre has provided space for supplies, fuel, and waste disposal from the 48 T/d PRENFLO unit.
Workshops and laboratoryfacilities are also provided. The major components of the process will be tested in continuous operation during a first operational phase. Modifications will be made and material and heat balances as well as balances of detrimental materials will be determined for various solid fuels.
The fouling of heating areas inthe waste heat boiler will be tested using chlorinated coal. Cleaning systems will also be tested.
The PRENFLO unit will have a coal throughput of 2 T/h at 30 Bar operating pressure, corresponding to a gas output of +- 4,000 m3/h dry raw gas. The gas consists primarily of a mixture of carbon monoxide and hydrogen. There will be no liquid or gaseous hydrocarbons.
The project (Phase 1) is estimated to cost DM 38,314 million.

Call for proposal

Data not available

Coordinator

Krupp-Koppers GmbH
EU contribution
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Address
Altendorfer Straße 120
45143 Essen
Germany

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Total cost
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