You need JavaScript to view this

Feeding biomass into pressure and related safety engineering

Abstract

Malfunctions in the fuel feed and handling equipment could be cause for biomass gasification process upsets, and are of major concern for pressurized gasification processes. One precondition for the development of handling and feed equipment for solid fuels and wastes and for the design of novel systems is a good knowledge of the characteristics and flowability of bulk materials, because the requirements for the equipment reliability, adjustability economy, and lifetime are becoming more demanding. Different methods of feeding biomass fuels into pressurized gasifiers, as well as limitations and special features of these methods, are discussed in this literature review. Examples of different systems for fuel feed and ash removal in pressurized gasification and combustion plants are given, and the available plant operational data are surveyed for a better understanding of the handling characteristics of bulk materials in biomass gasification plants. Unfortunately there are only a few references to long-term operating experience with biomass feeders in the literature. Safety engineering, including fuel flow characteristics, and dust explosion and spontaneous ignition properties, is also discussed with special attention given to the conditions in pressurized feeding systems. Results from dust explosion and spontaneous ignition tests with biofuels at elevated pressures are presented.
Authors:
Rautalin, A; Wilen, C [1] 
  1. Technical Research Centre of Finland, Espoo (Finland). Lab. of Fuel and Process Technology
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
VTT-TIED-1428
Reference Number:
SCA: 090900; 092000; PA: FI-93:003159; SN: 93000981070
Resource Relation:
Other Information: PBD: 1992
Subject:
09 BIOMASS FUELS; BIOMASS; FUEL FEEDING SYSTEMS; MEDIUM PRESSURE; GASIFICATION; SAFETY ENGINEERING; EXPLOSIONS; SPONTANEOUS COMBUSTION; IGNITION; BIOMASS CONVERSION PLANTS; 090900; 092000; PROCESSING; COMBUSTION
OSTI ID:
10148301
Research Organizations:
Technical Research Centre of Finland, Espoo (Finland)
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
Other: ON: DE93784818; ISBN 951-38-4322-X; TRN: FI9303159
Availability:
OSTI; NTIS
Submitting Site:
FI
Size:
62 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Rautalin, A, and Wilen, C. Feeding biomass into pressure and related safety engineering. Finland: N. p., 1992. Web.
Rautalin, A, & Wilen, C. Feeding biomass into pressure and related safety engineering. Finland.
Rautalin, A, and Wilen, C. 1992. "Feeding biomass into pressure and related safety engineering." Finland.
@misc{etde_10148301,
title = {Feeding biomass into pressure and related safety engineering}
author = {Rautalin, A, and Wilen, C}
abstractNote = {Malfunctions in the fuel feed and handling equipment could be cause for biomass gasification process upsets, and are of major concern for pressurized gasification processes. One precondition for the development of handling and feed equipment for solid fuels and wastes and for the design of novel systems is a good knowledge of the characteristics and flowability of bulk materials, because the requirements for the equipment reliability, adjustability economy, and lifetime are becoming more demanding. Different methods of feeding biomass fuels into pressurized gasifiers, as well as limitations and special features of these methods, are discussed in this literature review. Examples of different systems for fuel feed and ash removal in pressurized gasification and combustion plants are given, and the available plant operational data are surveyed for a better understanding of the handling characteristics of bulk materials in biomass gasification plants. Unfortunately there are only a few references to long-term operating experience with biomass feeders in the literature. Safety engineering, including fuel flow characteristics, and dust explosion and spontaneous ignition properties, is also discussed with special attention given to the conditions in pressurized feeding systems. Results from dust explosion and spontaneous ignition tests with biofuels at elevated pressures are presented.}
place = {Finland}
year = {1992}
month = {Dec}
}