PROCESS FOR SYNTHESIS OF A METAL/ZEOLITE COMPOSITE MATERIAL, CATALYST OBTAINED THEREBY AND ITS USE IN CONVERSION OF BIOMASS INTO BIO-FUELS

The invention relates to a process for preparing a catalyst used to covert biomass into bio-fuel. According to the invention, the process consists in treating mesoporous zeolite ZSM-5 with phosphoric acid at the temperature of 160°C for 2 h, adjusting the pH to a value of 4 with ammonium hydroxide s...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: DAVID ELENA, ŞTEFĂNESCU IOAN, ARMEANU ION ADRIAN
Format: Patent
Sprache:eng ; rum
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to a process for preparing a catalyst used to covert biomass into bio-fuel. According to the invention, the process consists in treating mesoporous zeolite ZSM-5 with phosphoric acid at the temperature of 160°C for 2 h, adjusting the pH to a value of 4 with ammonium hydroxide solution 25%, drying, calcining in the air and mixing the chemically modified zeolite with the resulted phosphorus, with ferrous sulphate heptahydrate and a clay-type binder, extruding the mixture as cylindrical particles with a diameter of 3...6 mm and a length of 6...8 mm which are calcined in the air at a temperature of 500...550°C for 3 h and cooled, to result in a Me/P/ZSM-type catalyst with high stability and efficiency. Invenţia se referă la un procedeu de obţinere a unui catalizator utilizat la conversia biomasei în biocombustibil. Procedeul conform invenţiei constă în tratarea zeolitului mezoporos ZSM-5 cu acid fosforic la temperatura de 160°C, timp de 2 h, ajustareaH-ului la valoarea 4 cu hidroxid de amoniu soluţie 25%, uscarea, calcinarea în aer şi amestecarea zeolitului modificat chimic cu fosfor rezultat, cu sulfat feros heptahidrat şi un liant de tip argilă, extruderea amestecului sub formă de particule cilindrice cu un diametru de 3...6 mm şi o lungime de 6...8 mm, care se calcinează în aer la temperatura de 500...550°C timp de 3 h, se răceşte, rezultând un catalizator de tip Me/P/ZSM-5 cu stabilitate şi eficienţă ridicată.