Development of alkali metal compounds removal systems for use with hot particulate removalFunded under: ECSC-COALRES 6C
Removal of particulates and alkali metal compounds at elevated temperatures from coal derived fuel gas before firing in a gas turbine would increase the thermal efficiency of gasification-based power generation systems. The aim of this contract has been to develop an alkali removal system to be used in conjunction with hot particulate removal at temperatures of up to 1000 C. A target concentration of 0.1 ppm wt (of sodium and potassium) has been adopted, based on experience with distillate fuel. The studies have concentrated on two main areas: (i) measurement of alkali metal compounds using a batch sampling system; (ii) development of removal systems. Two removal systems were tested: firstly cooling to 600 C to condense out alkalis onto particles which are then removed by filtration, and secondly using solid retention agents at 900 C.
Bibliographic Reference: EUR 14935 EN (1994) 55 pp., MF, ECU 4
Record Number: 199510274 / Last updated on: 1995-03-08
Original language: en
Available languages: en