Description: Das Projekt "Erzeugung von Energie aus Biomasse und organischen Abfaellen durch schnelle Pyrolyse" wird vom Umweltbundesamt gefördert und von Bio-Energy GmbH durchgeführt. Objective: The conversion of biomass and organic waste into high value energy products. Expected energy production is 1 220 TOE/y. General Information: Biomass and organic waste (waste wood, sawdust, bark, straw etc.) is crushed into scraps of 2-3 cm length and 1 cm width, and dried to +/- 15 per cent moisture content by the process gas. The dried crushed waste is then pyrolysed at 500-600 C in a vertical reactor: charcoal is continuously extracted from the bottom of the reactor then cooled, crushed and pressed into briquets. Gases escape from the upper part of the reactor, undergo dust extraction in a cyclone and are then cooled to 80 C in a spray tower by adding water. This temperature lies above the dew point; therefore, no condensate is produced. After leaving the spray tower the oil, in the form of an aerosol, is enlarged in a radial fan. The oil droplets are then removed in a separator. Non-condensable gases are burned and the flue gases are used mainly for drying of charcoal briquets and waste raw materials. Achievements: Several modifications were carried out on the plant in 1986. A pneumatic knocker was installed to avoid bridge building of material in the converter, the converter air inlet pipes were modified, the briquet elevator was replaced by an inclined belt conveyor, and the char outlet flap was improved to avoid clogging and to ensure the converter was air tight. During initial trials the outlet flap was not air tight and uncontrolled combustion was taking place in the converter. Following the above modifications charcoal output of about 25 per cent was achieved. Pyrolytic oil recovery ranged from 4. 6-7. 1 per cent, of biomass dry matter, lower that the 10 per cent forecast. Recent tests have shown that the pyrolytic oil can be contaminated with solid particles and fuel filtration is therefore needed. Use of the oil as a commercial engine fuel has yet to be demonstrated, though some success has been achieved with newly designed engines. The plant is not currently operational as some further modifications are required on the converter and funds to carry out this work are not available.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Konvertergas ? Flüssiggas ? Kraftstoff ? Brenngas ? Öl ? Taupunkt ? Zyklon ? Brennstoff ? Abfallzerkleinerung ? Holzkohle ? Motoröl ? Abfallverwertung ? Abwärmenutzung ? Trockensubstanz ? Kühlwasser ? Rauchgas ? Altmetall ? Temperaturverteilung ? Staub ? Bioenergie ? Aerosol ? Baumrinde ? Bioreaktor ? Extraktion ? Feststoff ? Gebäude ? Heizöl ? Nachwachsender Rohstoff ? Pyrolyse ? Stroh ? Wasserkühlung ? Feuchtigkeitsmessung ? Altholz ? Gasförmiger Stoff ? Organischer Abfall ? Trocknung ? Energietechnik ? Produktionstechnik ? Energieumwandlung ? Reaktor ? Rohstoff ? Filtration ? Verfahrenstechnik ? Abfall ? Kühlturm ? Kühlung ? Energieeinsparung ? Ölgewinnung ? Energiegewinnung ? Rohrleitung ? Stofftrennung ? Belüftung ? Wassergewinnung ? Biomasse ? Hang ? Biomasseproduktion ? Kondensat ? Wiederfindungsrate ? Zerkleinerung ? renewable sources of energy ? Brikett ? Kontinuierliches Verfahren ? Ventilator ?
Region: Bayern
Bounding box: 12.53381° .. 12.53381° x 47.795° .. 47.795°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1983-09-01 - 1986-09-30
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