Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations
Pretreatment of lignocellulose has received considerable research globally due to its influence on the technical, economic and environmental sustainability of cellulosic ethanol production. Some of the most promising pretreatment methods require the application of chemicals such as acids, alkali, sa...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
|
| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/719607 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850213803630788608 |
|---|---|
| author | Edem Cudjoe Bensah Moses Mensah |
| author_facet | Edem Cudjoe Bensah Moses Mensah |
| author_sort | Edem Cudjoe Bensah |
| collection | DOAJ |
| description | Pretreatment of lignocellulose has received considerable research globally due to its influence on the technical, economic and environmental sustainability of cellulosic ethanol production. Some of the most promising pretreatment methods require the application of chemicals such as acids, alkali, salts, oxidants, and solvents. Thus, advances in research have enabled the development and integration of chemical-based pretreatment into proprietary ethanol production technologies in several pilot and demonstration plants globally, with potential to scale-up to commercial levels. This paper reviews known and emerging chemical pretreatment methods, highlighting recent findings and process innovations developed to offset inherent challenges via a range of interventions, notably, the combination of chemical pretreatment with other methods to improve carbohydrate preservation, reduce formation of degradation products, achieve high sugar yields at mild reaction conditions, reduce solvent loads and enzyme dose, reduce waste generation, and improve recovery of biomass components in pure forms. The use of chemicals such as ionic liquids, NMMO, and sulphite are promising once challenges in solvent recovery are overcome. For developing countries, alkali-based methods are relatively easy to deploy in decentralized, low-tech systems owing to advantages such as the requirement of simple reactors and the ease of operation. |
| format | Article |
| id | doaj-art-7dfda7bc0cf045e19929a1b254baffd8 |
| institution | OA Journals |
| issn | 1687-806X 1687-8078 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Chemical Engineering |
| spelling | doaj-art-7dfda7bc0cf045e19929a1b254baffd82025-08-20T02:09:04ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782013-01-01201310.1155/2013/719607719607Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and InnovationsEdem Cudjoe Bensah0Moses Mensah1Department of Chemical Engineering, Kumasi Polytechnic, P.O. Box 854, Kumasi, GhanaDepartment of Chemical Engineering, Kwame Nkrumah University of Science and Technology, Private Mail Bag, University Post Office, KNUST, Kumasi, GhanaPretreatment of lignocellulose has received considerable research globally due to its influence on the technical, economic and environmental sustainability of cellulosic ethanol production. Some of the most promising pretreatment methods require the application of chemicals such as acids, alkali, salts, oxidants, and solvents. Thus, advances in research have enabled the development and integration of chemical-based pretreatment into proprietary ethanol production technologies in several pilot and demonstration plants globally, with potential to scale-up to commercial levels. This paper reviews known and emerging chemical pretreatment methods, highlighting recent findings and process innovations developed to offset inherent challenges via a range of interventions, notably, the combination of chemical pretreatment with other methods to improve carbohydrate preservation, reduce formation of degradation products, achieve high sugar yields at mild reaction conditions, reduce solvent loads and enzyme dose, reduce waste generation, and improve recovery of biomass components in pure forms. The use of chemicals such as ionic liquids, NMMO, and sulphite are promising once challenges in solvent recovery are overcome. For developing countries, alkali-based methods are relatively easy to deploy in decentralized, low-tech systems owing to advantages such as the requirement of simple reactors and the ease of operation.http://dx.doi.org/10.1155/2013/719607 |
| spellingShingle | Edem Cudjoe Bensah Moses Mensah Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations International Journal of Chemical Engineering |
| title | Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations |
| title_full | Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations |
| title_fullStr | Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations |
| title_full_unstemmed | Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations |
| title_short | Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations |
| title_sort | chemical pretreatment methods for the production of cellulosic ethanol technologies and innovations |
| url | http://dx.doi.org/10.1155/2013/719607 |
| work_keys_str_mv | AT edemcudjoebensah chemicalpretreatmentmethodsfortheproductionofcellulosicethanoltechnologiesandinnovations AT mosesmensah chemicalpretreatmentmethodsfortheproductionofcellulosicethanoltechnologiesandinnovations |