European Bio-Energy Projects

More documents

Recommendations

Info

DRY GAS CLEANING Objectives The objective was to develop, integrate and prove a complete biomass gasification combined heat and power small-scale prototype plant. The innovative idea of the project is a newly developed dry gas cleaning and heat recovery system. The dry gas cleaning concept, i.e. no wastewater, intends to solve and eliminate the tar problems associated with the operation of biomass gasifiers. The dry gas system is a three pass heat exchanger where tars are first condensed in a cold part then thermally cracked prior to being redirect back to the gasifier. Advanced heat recovery design improves the global heat efficiency of the CHP plant. The ultimate objective is, therefore, to create a new generation of energy efficient and environmentally friendly gasification systems. Biomass gasification with dry gas cleaning Background Utilisation of biomass and waste is generally expensive and not very efficient on small and medium scale plants. For gasification systems the main problem is the gas cleaning where severe environmental impact, costly maintenance problems and low energy utilisation are the main constraints. To overcome this situation, the project combines three minor gasification companies to one powerful European consortium with a broad range of scientific and commercial contacts to develop, integrate and prove a complete biomass gasification combined heat and power prototype plant of about 250 kWth. Technology and innovative challenges The most essential part of the process is the gas cleaning. The gas cleaning includes a high temperature dust separation at the gasifier outlet followed by a special regenerating counter-current tar condensing heat-exchanger, which is operated alternately in two phases. Change of phase concerns change of flow direction as well as flow side. Two separate streams of air cool the hot gas. Regeneration has the effect of decomposing the tar deposits at high temperatures and returning the cracked tar products into the gasifier by means of preheated gasification air. The cooling air for feedstock drying is uncontaminated with cracked tar products. The produced gas is cooled to 10-20°C above the dew point, so no wastewater is generated. 94 Project structure The partners have been satisfied with the project which, both in scientific and social terms, has been very successful. The project has benefited significantly from the European collaboration. The project was co-ordinated by Cirad (France) and involved one SME and a technical centre, both from Denmark. Technical and environmental performances The following technical objectives have been achieved: • Design and construction of a hot producer gas (700-800°C) particulate cleaning system (filter/ cyclone, adhesion to tar, engine pre-filter), which operates continuously and achieves separation efficiency acceptable for engine applications, preferably without further particulate removal. • Design and construction of a new generation small scale tar condensing, regenerative gasgas heat exchanger, which is able to provide a clean gas free from tars creating problems in an engine. The efficiency of the condensation increases with the tar concentration. Depending on the operating conditions the tar concentrations measured varied from 37.4 to 237.6 mg/Nm3. The heat exchanger cycle has been in operation more than 500 hours on one continuous run.
• Rebuilding a carburettor and exhaust on an existing gas engine, which has achieved emissions of CO below 500 ppm, hydrocarbons below 100 ppm and NO, below 500 ppm. The biofuel (20% moisture) power efficiency obtained is higher than 22%. All performance data are well superior to the existing ones. Market applications Utilisation of biomass and waste is a sustainable and environmentally friendly way of energy production, which may contribute to the reduction of the greenhouse effect, utilise local resources and improve local employment. Small CHP plants will certainly constitute the most promising route, as they represent the major market perspective in terms of replication. Gasification is a way to increase the utilisation of renewable energy sources. In addition, development of components and integration of processes are potential export opportunities. It is the objective, that the entire process should be economically attractive, i.e. the investment costs (sales price, exclusive of installation costs) of the plant should not exceed €1,500 /kWe. 95 INFORMATION References: ERK5-CT-1999-00003 Programme: FP5 - Energy, Environment and Sustainable Development Title: Biomass Gasification for CHP with Dry Gas Cleaning and Regenerative Heat Recovery – DRY GAS CLEANING Duration: 22 months Contact point: Philippe Girard Cirad Forêt Tel: +33-467614475 philippe.girard@cirad.fr Partners: Cirad (F) DK-Teknik (DK) Thomas Koch Energi (DK) EC Scientific Officer: Garbiñe Guiu Etxeberria Tel: +32-2-2990538 Fax: +32-2-2993694 garbine.guiu@cec.eu.int Status: Completed
Page 1 and 2:
PROJECT SYNOPSES European Bio-Energ
Page 3 and 4:
Interested in European research? RT
Page 5 and 6:
LEGAL NOTICE: Neither the European
Page 7 and 8:
Contents � Forestry - Energy Wood
Page 9 and 10:
- Studies of Fuel Blend Properties
Page 11 and 12:
Expected impact and exploitation Th
Page 13 and 14:
Results The main result of this pro
Page 15 and 16:
Furthermore, multifuelled tests of
Page 17 and 18:
Expected impact The integrated swee
Page 19 and 20:
Expected impact and exploitation We
Page 21 and 22:
Page 23 and 24:
Figure 1: Enrichment and depletion
Page 25 and 26:
Greece on environmental technologie
Page 27 and 28:
Project structure. Progress to date
Page 29 and 30:
Progress to date The process of the
Page 31 and 32:
Construction Details of DEPR-Plant.
Page 33 and 34:
The most important feature of the P
Page 35 and 36:
At the moment the second stage of t
Page 37 and 38:
Isometric view of Corby Mixed Bio-F
Page 39 and 40:
meetings and discussions have taken
Page 41 and 42:
RESHMENT - Process. Project structu
Page 43 and 44: Project structure The project is or
Page 45 and 46: Results of catalytic processes. Pro
Page 47 and 48: VTT’s Process Development Unit (P
Page 49 and 50: Expected impact and exploitation Th
Page 51 and 52: Project structure The project is im
Page 53 and 54: • syngas cooler; • baghouses fo
Page 55 and 56: Figure 1: Typical BIGCC process sch
Page 57 and 58: Bio oil is an easy-to-use liquid. B
Page 59 and 60: 3-D drawing of the envisaged pyroly
Page 61 and 62: Progress to date Project progress,
Page 63 and 64: Progress to date Both networks regu
Page 65 and 66: Finally, the project will contribut
Page 67 and 68: treatment dominate the cost structu
Page 69 and 70: Gasification product gas compositio
Page 71 and 72: Figure 1: Energy flows of the AER p
Page 73 and 74: • combustion of fuel gas in a tur
Page 75 and 76: Wood- Biomass- Bio-oil- Electricity
Page 77 and 78: Figure 1: Basic process flow diagra
Page 79 and 80: Progress to date A lot of data must
Page 81 and 82: Figure 1: Deposites of crystalline
Page 83 and 84: Figure 1: Overview of biological wa
Page 85 and 86: Picture 1: Large-scale Digestor Set
Page 87 and 88: During the Demonstration part of th
Page 89 and 90: Expected impact and exploitation Ur
Page 91 and 92: Results Selective catalytic oxidati
Page 93: Expected impact and exploitation A
Page 97 and 98: Expected results and exploitation p
Page 99 and 100: NOVEL CHP process. Results The deve
Page 101 and 102: TARGeT Process Scheme. New combusto
Page 103 and 104: Another important result from the p
Page 105 and 106: Results At the biennial meeting in
Page 107 and 108: BFB-Plant. Furthermore from tanned
Page 109 and 110: INTCON - Mainscreen. For this appli
Page 111 and 112: From this study it was observed tha
Page 113 and 114: Expected results As the project sta
Page 115 and 116: Figure 1: Hot water accumulator and
Page 117 and 118: Expected impact and exploitation In
Page 119 and 120: Clean Coal Pre--feasibility Study L
Page 121 and 122: educed mechanism has been implement
Page 123 and 124: Progress to date During the first t
Page 125 and 126: Basic analysis methods must be take
Page 127 and 128: parameters, relevant combustion con
Page 129 and 130: This proposal specifically addresse
Page 131 and 132: Expected impact and exploitation A
Page 133 and 134: FBCOBIOW - Project. Expected impact
Page 135 and 136: The Hungarian participant will faci
Page 137 and 138: were run with some challenges conce
Page 139 and 140: Expected impact International and n
Page 141 and 142: Figure 1: The UPSWING process. Proj
Page 143 and 144: From left to right: The logging res
Page 145 and 146:
Figure 1: General layout of an inci
Page 147 and 148:
Exploitation The exploitation activ
Page 149 and 150:
Figure 1: Mesh for Two Stage Combus
Page 151 and 152:
The advantage of fly ash in concret
Page 153 and 154:
Environment • reduce emissions of
Page 155 and 156:
Progress to date All the design and
Page 157 and 158:
Figure 1: Flow Chart. Moreover, the
Page 159 and 160:
Project structure In order to devel
Page 161 and 162:
Figure 1: Expansion process within
Page 163 and 164:
No tar-contaminated wastewater •
Page 165 and 166:
Figure 1: View of the CHP plant, Li
Page 167 and 168:
ales will be tested with the new te
Page 169 and 170:
Progress to date Figure 1: Sustaina
Page 171 and 172:
Expected impact and exploitation It
Page 173 and 174:
Progress to date The delays of pres
Page 175 and 176:
Expected impact and exploitation On
Page 177 and 178:
Expected results and exploitation p
Page 179 and 180:
As a result of the new agricultural
Page 181 and 182:
Biomass bundling technology system.
Page 183 and 184:
Expected impact and exploitation Re
Page 185 and 186:
Structure of the BioNorm project. E
Page 187 and 188:
In the second activity, the results
Page 189 and 190:
Expected impact and exploitation In
Page 191 and 192:
Results The project has successfull
Page 193 and 194:
Figure 1: Research Areas of WG1 and
Page 195 and 196:
perception and image of bioenergy,
Page 197 and 198:
to determining the consequences for
Page 199 and 200:
EU Biomass Technology Pavilion in W
Page 201 and 202:
for the transport sector, and you h
Page 203 and 204:
husks. As this waste material is co
Page 205 and 206:
Distribution of the various types o
Page 207 and 208:
Expected impact and exploitation Wa
Page 209 and 210:
Page 211:
This compilation of synopses covers
show all

European Bio-Energy Projects

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?