Bioethanol Production from Lignocellulosics: Some Process Considerations and Procedures

Lucas Loveless, Wu Li Bao, Kyle E. Beery, Martin Sparks, Consuelo Cruz, Charles A. Abbas, Pamela Corrington, Kelli Trei

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

Abstract

The current emphasis on environmentally friendly liquid transportation fuels has caused a renewed interest in bioethanol and, in particular, lignocellulosic feedstocks for the production of bioethanol. As a result, research into the development of an economic process for the bioconversion of lignocellulosics has accelerated. The primary areas of research crucial to improved process economics consist of feedstock selection, pretreatment, hydrolysis of the pretreated feedstocks, and developing an optimized fermentation process that uses newly engineered ethanologens capable of utilizing various biomass-derived sugars. Various levels of cellulose, hemicellulose, lignin, ash, silica, nitrogen, and moisture will require various pretreatment conditions and chemicals to ensure the most optimum pretreatment for that feedstock. The various pretreatments range from seconds for dilute acid, ammonia fiber explosion (AFEX), and steam explosion to days and weeks for lime pretreatment. Acid pretreatments include both processes featuring the addition of acids and processes without added acids in which the pH is lowered due to release of acetic acid in the course of pretreatment. Pretreatments using bases, such as AFEX, lime pretreatment, and ammonia recycle percolation alone or followed by a successive treatment with hydrogen peroxide, work mainly by swelling the biomass and modifying or solubilizing the hemicellulose and lignin. The enzyme products can be analyzed on silica thin-layer chromatography plates, where sugars are visualized by sulfuric acid charring at high temperature. Lignocellulosic hydrolysate fermentation or bioconversion may be achieved by either solid-state or submerged-liquid fermentation.
Original languageEnglish (US)
Title of host publicationManual of Industrial Microbiology and Biotechnology, Third Edition
EditorsLee R. Lynd, Huimin Zhao, Leonard Katz, Richard H. Baltz, Alan T. Bull, Beth Junker, Prakash Masurekar, Julian E. Davies, Christopher D. Reeves, Arnold L. Demain
PublisherAmerican Society of Microbiology
Pages621-633
Edition3
ISBN (Electronic)9781555816827
ISBN (Print)9781555815127
DOIs
StatePublished - Jan 1 2010

Fingerprint

Bioethanol
Feedstocks
Ammonia
Fermentation
Explosions
Bioconversion
Acids
Lignin
Ashes
Sugars
Silicon Dioxide
Biomass
Thin layer chromatography
Economics
Fibers
Steam
Liquids
Cellulose
Acetic Acid
Hydrogen Peroxide

Cite this

Loveless, L., Bao, W. L., Beery, K. E., Sparks, M., Cruz, C., Abbas, C. A., ... Trei, K. (2010). Bioethanol Production from Lignocellulosics: Some Process Considerations and Procedures. In L. R. Lynd, H. Zhao, L. Katz, R. H. Baltz, A. T. Bull, B. Junker, P. Masurekar, J. E. Davies, C. D. Reeves, ... A. L. Demain (Eds.), Manual of Industrial Microbiology and Biotechnology, Third Edition (3 ed., pp. 621-633). American Society of Microbiology. https://doi.org/10.1128/9781555816827.ch43

Bioethanol Production from Lignocellulosics: Some Process Considerations and Procedures. / Loveless, Lucas; Bao, Wu Li; Beery, Kyle E.; Sparks, Martin; Cruz, Consuelo; Abbas, Charles A.; Corrington, Pamela; Trei, Kelli.

Manual of Industrial Microbiology and Biotechnology, Third Edition. ed. / Lee R. Lynd; Huimin Zhao; Leonard Katz; Richard H. Baltz; Alan T. Bull; Beth Junker; Prakash Masurekar; Julian E. Davies; Christopher D. Reeves; Arnold L. Demain. 3. ed. American Society of Microbiology, 2010. p. 621-633.

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

Loveless, L, Bao, WL, Beery, KE, Sparks, M, Cruz, C, Abbas, CA, Corrington, P & Trei, K 2010, Bioethanol Production from Lignocellulosics: Some Process Considerations and Procedures. in LR Lynd, H Zhao, L Katz, RH Baltz, AT Bull, B Junker, P Masurekar, JE Davies, CD Reeves & AL Demain (eds), Manual of Industrial Microbiology and Biotechnology, Third Edition. 3 edn, American Society of Microbiology, pp. 621-633. https://doi.org/10.1128/9781555816827.ch43
Loveless L, Bao WL, Beery KE, Sparks M, Cruz C, Abbas CA et al. Bioethanol Production from Lignocellulosics: Some Process Considerations and Procedures. In Lynd LR, Zhao H, Katz L, Baltz RH, Bull AT, Junker B, Masurekar P, Davies JE, Reeves CD, Demain AL, editors, Manual of Industrial Microbiology and Biotechnology, Third Edition. 3 ed. American Society of Microbiology. 2010. p. 621-633 https://doi.org/10.1128/9781555816827.ch43
Loveless, Lucas ; Bao, Wu Li ; Beery, Kyle E. ; Sparks, Martin ; Cruz, Consuelo ; Abbas, Charles A. ; Corrington, Pamela ; Trei, Kelli. / Bioethanol Production from Lignocellulosics: Some Process Considerations and Procedures. Manual of Industrial Microbiology and Biotechnology, Third Edition. editor / Lee R. Lynd ; Huimin Zhao ; Leonard Katz ; Richard H. Baltz ; Alan T. Bull ; Beth Junker ; Prakash Masurekar ; Julian E. Davies ; Christopher D. Reeves ; Arnold L. Demain. 3. ed. American Society of Microbiology, 2010. pp. 621-633
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