Biomass gasification process, and apparatus, and their applications

Girard Philippe, Van de Steene Laurent, Koch Thomas, Antonini Gérard, Bensakhria Ammar. 2003. Biomass gasification process, and apparatus, and their applications. Munich : Office Européen des Brevets, 21 p. N° de dépôt européen : 01401176.1, N° de brevet européen : EP1312662 A2

Url - autre : http://bases-brevets.inpi.fr/fr/document/EP1312662/publications.html?tx_jsearchrest_documentsearchrest%5BselectedDocumentRow%5D=1&p=5&s=1505813893952&cHash=57b12bb43ca2c683c76846ed42a95060

Titre français : Procédé de gazéification de biomasse, appareil et utilisation / Titre allemand : Verfahren zur vergasung von biomasse, vorrichtung und anwendung

Note générale : Date de dépôt européen : 2001-05-07 ; Déposant : Cirad-Forêt

Résumé : The invention relates to a new and efficient staged gasification process characterized by a close integration of the gas cleaning part. The unit and process use a new device named Total Char Combustion and Tar Cracking Chamber (TCC)<2> positioned between a pyrolysis unit (PYR) and a char reduction reactor (CRC), in a stage divided gasifier. The char conversion takes place in 2 steps. In the first step, the char produced in the pyrolysis unit (PYR) is introduced in the (CRC) whose main purpose is to convert as much as possible carbon of the char. The (CRC) belongs to the fluidized bed type. The second step takes place in the (TCC)<2> whose purpose is to perform both a complete conversion of the remaining carbon still present after reaction in the (CRC); and the thermal cracking of the tar contained in the pyrolysis gases, the residual ashes being vitrified simultaneous and eliminated as a slag. Low grade feedstock with low melting point ashes can be used: straw and bark. A new vibrofluidized pyrolysis unit is implated to achieve an appropriate and constant quality of char with a minimum preparation of the biomass, and offers the opportunity to orientate the process for gas or solid. The invention leads to the following advantages: higher tolerance toward different quality of feedstocks including low grade feedstocks; recovery of the residual carbon content in ashes; production of a clean gas (low residual tar, ashes and alkali) for a direct injection in an engine/turbine. These results will induce a higher efficiency of the process and consequently bring to maturity the gasification technology.

Classification Agris : Q70 - Traitement des déchets agricoles
K50 - Technologie des produits forestiers
P06 - Sources d'énergie renouvelable

Auteurs et affiliations

• Girard Philippe, CIRAD-PERSYST-UPR Biomasse-énergie (BFA)
• Van de Steene Laurent, CIRAD-PERSYST-UPR Biomasse-énergie (FRA) ORCID: 0000-0003-4737-3667
• Koch Thomas, TK Energi AS (DNK)
• Antonini Gérard, UTC (FRA)
• Bensakhria Ammar, UTC (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/585443/)

Métriques

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