PROCESS FOR PREPARING DIESEL BIOFUEL FROM WASTE

The invention relates to a process for preparing a biofuel to supply a Diesel engine. According to the invention, the process consists in treating high fat-content waste with 3...10% by weight mineral acid at a temperature of 80...100°C, for 15...30 min, to obtain a suspension having a pH value of 3...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: STEPAN EMIL, VELEA SANDA, ERBAN SEVER-VASILE
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to a process for preparing a biofuel to supply a Diesel engine. According to the invention, the process consists in treating high fat-content waste with 3...10% by weight mineral acid at a temperature of 80...100°C, for 15...30 min, to obtain a suspension having a pH value of 3.5...4 which is further treated with 5...20% raw biofuel obtained from vegetable waste, while stirring, the proteic suspension is separated and the solution of fat matters is treated with 0.3...1% by weight, as related to the solution of fat matters, an alkaline hydroxide dissolved in methanol, at the temperature of 60...70°C for 45...60 min, the raw glycerol is separated by decanting from the raw biofuel which is subjected to purification and, after volatile removal is filtered through a granular layer, finally resulting a biofuel. Invenţia se referă la un procedeu de obţinere a unui biocarburant cu care este alimentat un motor diesel. Procedeul conform invenţiei constă din aceea că se tratează deşeurile având un conţinut ridicat de grăsimi cu 3...10% în greutate un acid mineral, la temperatura de 80...100°C, timp de 15...30 min, rezultând o suspensie cu un pH egal cu 3,5...4, care în continuare se tratează sub agitare cu 5...20% biocarburant brut, obţinut din deşeuri vegetale, se separă suspensia proteică, iar soluţia de materii grase se tratează cu 0,3...1% în greutate faţă de soluţia de materii grase un hidroxid alcalin dizolvat în metanol, la temperatura de 60...70°C, timp de 45...60 min, se separă prin decantare glicerina brută de biocombustibilul brut care se supune purificării, iar după îndepărtarea volatilelor, se filtrează printr-un strat granular, rezultând un biocarburant.