Scholarly record
ENHACHING BIOMASS FROM PLAM WASTES PROPERTIES BY USING DRY TORREFACTION
Abstract
Dry torrefaction is a mild pyrolysis process carried out in anoxic atmospheres between temperature ranges of 200?C and 300?C. It is used as a pretreatment of biomass as it improves its characteristics and reduces the biomass limitations of usage by reducing its hygroscopy, increasing its energy value, etc. Due to its favorable effects, a torrefaction process has been carried out using Malaysian oil palm wastes (empty fruit bunches, mesocarp fiber and kernel shell), at two different temperatures (250?C and 300?C) located before and after the holocellulosic decomposition temperature (aprox. 270?C), and a residence time of 30 minutes. In order to create an anoxic atmosphere, an inert gas (such as nitrogen or carbon monoxide) was used. Thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), proximate analysis and minimum ignition energy (MIE) analysis have been carried out prior and after torrefaction process, in order to observe improvements in the samples. The results show changes of moisture, specific heat capacity and minimum ignition energy; concluding that, after torrefaction, biomass presents higher fixed carbon content, enhanced calorific values and physical properties in all samples but one: palm empty fruit bunches (EFB). Proximate analysis shows that EFB presents higher volatile content and TGA evaluation shows no holocellulosic decomposition, but only heavy volatiles decomposition at 310?C. Because of its composition, and its temperature of heavy volatiles decomposition, torrefaction process gave different results for this sample: EFB physical properties were enhanced but thermal properties were not affected by the treatment. On the other hand, improving energetic properties may involve industrial safety risks as by applying torrefaction, combustion becomes easier to happen. MIE analysis supported this scenario as the samples reduced its minimum ignition energy as the torrefaction process was applied.
Publication Impact Profile
- Captures
- Mendeley - Readers: 9
Publication details
References0
Structured references will appear here after the reference import pass. The count is preserved now so the scholarly record is not incomplete.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.