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Pressurized feeder for biofuels; Paineistettu syoetin biopolttoaineille

Abstract

A new type of pressurized piston feeder has been tested for further development of the IGCC concept. The project is funded by the Finnish Ministry of Trade and Industry. The objective has been to develop a substitute for lock-hopper systems, which are commercial, but far too expensive from an operational point of view, due to high inert gas consumption for pressurization. The new feeder system, which is of dual piston type, uses little inert gas, because the pressurization sequence is performed partially by the piston movement. The project comprised further development of the concept, mechanical testing under atmospheric and pressurized conditions and testing with wood chips, peat and coal at elevated pressures. The main concern has been the wear of seals and gaskets during long term operation and for this reason over 600 hours of testing has been carried out. The tests were carried out between May 1994 and January 1995 with wood chips, peat and coal mainly at 17 bar(a) pressure. During the operation, the system was fine-tuned, and generally, the testing was successful. At the early stage of the tests, the ring seal design was modified and several alternative seal constructions were tested. During the tests, the seal  More>>
Authors:
Lundqvist, R; Makkonen, P [1] 
  1. Foster Wheeler Energia Oy, Karhula (Finland). Karhula R and D Center
Publication Date:
Dec 31, 1995
Product Type:
Technical Report
Report Number:
VTT-BIOENERGIA-11-Pt.3
Reference Number:
SCA: 090900; 094000; 013000; PA: FI-97:003064; EDB-97:019095; SN: 97001722292
Resource Relation:
Other Information: PBD: 1995; Related Information: Is Part Of Bioenergy Research Programme, Yearbook 1995. Utilization of bioenergy and biomass conversion; Alakangas, E. [ed.]; PB: 222 p.; Bioenergian tutkimusohjelma, vuosikirja 1995. Bioenergian kaeyttoe ja biomassan jalostus
Subject:
09 BIOMASS FUELS; 01 COAL, LIGNITE, AND PEAT; FUEL FEEDING SYSTEMS; BIOMASS; COAL; GASIFICATION; PEAT; PISTONS; PRESSURIZATION; WOOD; FIELD TESTS
OSTI ID:
419215
Research Organizations:
VTT Energy, Jyvaeskylae (Finland). Biofuels
Country of Origin:
Finland
Language:
Finnish
Other Identifying Numbers:
Other: ON: DE97722473; CNN: Project TEKES-BIOENERGIA-Y302; ISBN 952-9500-77-7; TRN: FI9703064
Availability:
OSTI as DE97722473
Submitting Site:
FI
Size:
pp. 59-68
Announcement Date:
Feb 04, 1997

Citation Formats

Lundqvist, R, and Makkonen, P. Pressurized feeder for biofuels; Paineistettu syoetin biopolttoaineille. Finland: N. p., 1995. Web.
Lundqvist, R, & Makkonen, P. Pressurized feeder for biofuels; Paineistettu syoetin biopolttoaineille. Finland.
Lundqvist, R, and Makkonen, P. 1995. "Pressurized feeder for biofuels; Paineistettu syoetin biopolttoaineille." Finland.
@misc{etde_419215,
title = {Pressurized feeder for biofuels; Paineistettu syoetin biopolttoaineille}
author = {Lundqvist, R, and Makkonen, P}
abstractNote = {A new type of pressurized piston feeder has been tested for further development of the IGCC concept. The project is funded by the Finnish Ministry of Trade and Industry. The objective has been to develop a substitute for lock-hopper systems, which are commercial, but far too expensive from an operational point of view, due to high inert gas consumption for pressurization. The new feeder system, which is of dual piston type, uses little inert gas, because the pressurization sequence is performed partially by the piston movement. The project comprised further development of the concept, mechanical testing under atmospheric and pressurized conditions and testing with wood chips, peat and coal at elevated pressures. The main concern has been the wear of seals and gaskets during long term operation and for this reason over 600 hours of testing has been carried out. The tests were carried out between May 1994 and January 1995 with wood chips, peat and coal mainly at 17 bar(a) pressure. During the operation, the system was fine-tuned, and generally, the testing was successful. At the early stage of the tests, the ring seal design was modified and several alternative seal constructions were tested. During the tests, the seal was developed further and improved. The present ring seal design has been proven reliable and it meets the commercial requirements. After the tests, the feeder system was inspected thoroughly and found to be in good condition. A commercially available concept of the feeder has been developed on the basis of the knowledge obtained during the test runs}
place = {Finland}
year = {1995}
month = {Dec}
}