Sugars Production from Municipal Forestry and Greening Wastes Pretreated by an Integrated Steam Explosion-Based Process

Maria José Negro, Cristina Álvarez, Pablo Doménech, Raquel Iglesias and Ignacio Ballesteros
Additional contact information
Maria José Negro: Biobased Fuels and Products Unit, Renewables Energies Division, Energy Department, Research Centre for Energy, Environment and Technology (CIEMAT), Complutense Av. 40, 28040 Madrid, Spain
Cristina Álvarez: Biobased Fuels and Products Unit, Renewables Energies Division, Energy Department, Research Centre for Energy, Environment and Technology (CIEMAT), Complutense Av. 40, 28040 Madrid, Spain
Pablo Doménech: Biobased Fuels and Products Unit, Renewables Energies Division, Energy Department, Research Centre for Energy, Environment and Technology (CIEMAT), Complutense Av. 40, 28040 Madrid, Spain
Raquel Iglesias: Biobased Fuels and Products Unit, Renewables Energies Division, Energy Department, Research Centre for Energy, Environment and Technology (CIEMAT), Complutense Av. 40, 28040 Madrid, Spain
Ignacio Ballesteros: Biobased Fuels and Products Unit, Renewables Energies Division, Energy Department, Research Centre for Energy, Environment and Technology (CIEMAT), Complutense Av. 40, 28040 Madrid, Spain

Energies, 2020, vol. 13, issue 17, 1-14

Abstract: Increasing awareness of resource sustainability and waste management has led to the search for solutions while promoting circular economy principles. Among all kinds of lignocellulosic biomass available, one with growing interest is municipal forestry and greening waste (MFGW). MFGW makes up an important part of waste streams of municipal solid waste and is a potential feedstock for biological conversion in a lignocellulosic biorefinery. This work studied the fermentable sugars production from MFGW after steam explosion (SE) pretreatment combined with other pretreatments such as dilute acid, organosolv, and metal salts. A range of pretreatment conditions was evaluated according to different parameters: sugars recovery, degradation product generation, and enzymatic hydrolysis yield. At selected pretreatment conditions (diluted acid plus SE, 195 °C, 10 min, and 60 mg H 2 SO 4 /g MFGW), 77% of potential sugars content in MFGW was obtained. The effect of solids loading and enzyme dose on glucose release and glucose yield on enzymatic hydrolysis were also determined. Up to 70% of the main sugars in the MFGW were recovered for the coupled pretreatment and enzymatic hydrolysis (45 FPU/g glucan enzyme loading and 20% dry matter solid consistency), resulting in 80 g/L glucose that could be further utilized for ethanol production.

Keywords: municipal forestry and greening wastes; pretreatment; enzymatic hydrolysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/17/4432/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/17/4432/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:17:p:4432-:d:405053

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().