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2 edition of Process Development Studies on the Bioconversion of Cellulose and Production of Ethanol found in the catalog.

Process Development Studies on the Bioconversion of Cellulose and Production of Ethanol

Charles Wilke

Process Development Studies on the Bioconversion of Cellulose and Production of Ethanol

Reports

by Charles Wilke

  • 39 Want to read
  • 35 Currently reading

Published by Lawrence Berkeley Laboratory .
Written in English

    Subjects:
  • Cellulose.,
  • Biomass energy.,
  • Alcohol as fuel -- Research.,
  • Liquid fuels.,
  • Biomass conversion.

  • Edition Notes

    StatementWilke, Charles.
    GenreResearch.
    ContributionsBlanch, Harvey.
    The Physical Object
    Pagination$0.00 C.1. $0.00 C.1.
    ID Numbers
    Open LibraryOL17586667M

    ethanol production. The third chapter entitled ―Bioconversion of corn stover using cascade two-phase simultaneous saccharification and fermentation (CTPSSF)‖ is a report of the trial tests of a novel bioconversion scheme in which the efficiency of enzyme recycling and ethanol production via the CSSF process was evaluated.   The resulting ethanol yield per gram cellulose is shown in Fig. 4B. Ethanol yield for less severely pretreated material is shown in Fig. S4B. Although the control switchgrass required 15 or 60 FPU for production of a certain level of ethanol, the transgenic material required only 5 or 15 FPU for equivalent ethanol yield for producing the same.

    LEE et al:RECENT DEVELOPMENTS OF KEY TECHNOLOGIES ON CELLULOSIC ETHANOL PRODUCTION Journal of Scientific & Industrial Research Vol. 67, November , pp *Author for correspondence E-mail: [email protected] Recent developments of key technologies on cellulosic ethanol productionCited by: Enzymatic bioconversion and fermentation of corn stover at high-solids content for efficient ethanol production. C. Katsimpouras 1, P. Christakopoulos2 and E. Topakas. 1Biotechnology Laboratory/School of Chemical Engineering/ National Technical Universityof Athens, 5 Iroon Polytechniou Str., Greece.

    Production of Bioethanol from Sugar: Source: Bioconversion of Sugarcane Biomass into Ethanol: An Overview about Composition, Pretreatment Methods, Detoxification of Hydrolysates, Enzymatic Saccharification, and Ethanol Fermentation, Larissa Canilha et al. The production of ethanol from food such as corn, cassava etc. is the most predominate way of producing ethanol. This has led to a shortage in food, inbalance in food chain, increased food price and indirect land use. This thesis thus explores using another feed for the production of ethanol- hence ethanol from cellulose. Sawdust was used to carry.


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Process Development Studies on the Bioconversion of Cellulose and Production of Ethanol by Charles Wilke Download PDF EPUB FB2

@article{osti_, title = {Process development studies of the bioconversion of cellulose and production of ethanol.

Semi annual report}, author = {Wilke, C R and Blanch, H W}, abstractNote = {Progress in the following process development studio is reported: economic evaluation of hydrolysis and ethanol fermentation schemes, economic evaluation of alternative fermentation processes, raw. Process development studies on the bioconversion of cellulose and production of ethanol.

Berkeley, Calif.: Dept. of Energy, Lawrence Berkeley Laboratory, Energy and Environment Division ; [Springfield, Va.]: [For sale by the National Technical Information Service], (OCoLC) Material Type. @article{osti_, title = {Pilot plant studies of the bioconversion of cellulose and production of ethanol}, author = {Wilke, C R}, abstractNote = {Work for the period July 1 to Septem is summarized briefly.

Results of the following studies are reported: analysis and evaluation of potential raw materials--chemical analysis of the Kudzu plant and effect of NO/sub x.

Keywords: Cellulose, Ethanol, Mixed culture, Batch processes and Kinetic Studies. INTRODUCTION: Direct bioconversion of cellulose to ethanol is a process in which the same microorganism carries out both hydrolysis and fermentation of cellulose to ethanol in one operation.

Cellulosic ethanol is ethanol (ethyl alcohol) produced from cellulose (the stringy fiber of a plant) rather than from the plant's seeds or is a biofuel produced from grasses, wood, algae, or other fibrous parts of the plants are mostly inedible to animals, including humans, except for ruminants (grazing, cud-chewing animals such as cows or sheep).

Manzanares, in Bioalcohol Production, Consolidated bioprocessing. Regarding the development of microorganisms for cellulose conversion via CBP, although important advances have been achieved during the last decade, up to date microorganisms with the whole combination of properties required are not available.

As described above in Sectionmicroorganism development. M.G. Lobo, E. Dorta, in Postharvest Technology of Perishable Horticultural Commodities, Bioethanol. Bioethanol is the most widely used biofuel for transportation worldwide. About 95% of ethanol produced in the world is from agricultural products.

A major problem with the production of bioethanol is the availability of raw materials, as it depends on the starch (60% bioethanol. Ethanol is produced via sugar fermentation processes by yeasts or bacteria. Although the current industrial production of ethanol mainly involves the use of starch- and sugar-based feedstocks, lignocellulosic biomass is expected to play a key role as renewable, carbohydrate-rich raw by: potential to positively impact the cost of ethanol production via gasification.

Building on a design report published inNREL and its subcontractor Harris Group Inc. performed a complete review of the process design and economic model for a biomass-to­ ethanol process via indirect gasification. The studies were conducted with respect to their usefulness in the process of simulataneous saccharification and fermentation of cellulose to ethanol.

The following results were obtained. Biocatalyst development for bioethanol production from hydrolysates Pretreatment of biomass Cellulase production Cellulose bioconversion technology Hemicellulose conversion to ethanol Advanced process options for bioethanol production Ethanol from corn: technology and economics Integrated bioprocess development for bioethanol production.

Cellulosic Production Process. The chemical make-up of ethanol is uniform across the board whether it is produced from corn, sugarcane, or cellulose; however, the differences lie in the production processes and the necessary technologies in different stages of development.

A review of conversion processes for bioethanol production with a focus on syngas fermentation. Mamatha Devarapalli, Hasan K. Atiyeh * Department of Biosystems and Agricultural Engineering, Oklahoma State University, Stillwater, OKUSA.

HIGHLIGHTS GRAPHICA Summary of biological processes to produce. ethanol from food based feedstocks. The U.S. Department of Energy, Office of Fuels Development supports a program to develop a commercially viable process for producing ethanol transportation fuel from renewable biomass resources.

Several natural associations composed of thermophilic anaerobic bacteria capable of utilizing various cellulose materials at 60 ± 2°C and pH – were isolated from the sludge of Kamchatka geothermal springs.

The rate of ethanol production (up to g/l per day) and the concentration of ethanol in the medium (up to %), as well as the fermentation period (10–15 days), Cited by: 3. The process development of sludge to ethanol via biochemical pathway has been studied over the past few decades.

Previous studies show that enzymatic hydrolysis of paper sludge has been inefficient in separate hydrolysis and fermentation due to the interference of large amount of ash in the sludges during enzymatic hydrolysis.

T1 - Bioconversion of cellulose into ethanol by nonisothermal simultaneous saccharification and fermentation. AU - Oh, K. AU - Kim, Seung Wook. AU - Jeong, Y. AU - Hong, S. PY - /1/1. Y1 - /1/1.

N2 - The kinetic characteristics of cellulase Cited by: Bioconversion, also known as biotransformation, is the conversion of organic materials, such as plant or animal waste, into usable products or energy sources by biological processes or agents, such as certain microorganisms.

One example is the industrial production of cortisone, which one step is the bioconversion of progesterone to alpha-Hydroxyprogesterone by Rhizopus nigricans. The process for second generation ethanol requires three steps: pretreatment of lignocellulosic materials, to make the hemicellulose sugars and cellulose more accessible, fermentation of sugars and separation and purification of ethanol.

Although it is an eminent perspective, the development of this technology requires some additional by: KEYWORDS: Cellulose, Ethanol, Mixed culture, Batch processes and Kinetic Studies. INTRODUCTION Direct bioconversion of cellulose to ethanol is a process in which the same microorganism carries out both hydrolysis and fermentation of cellulose to ethanol in one operation.

Simultaneous hydrolysis of cellulose to ethanol improves theAuthor: jan, nithi, Yulin Deng. Cellulosic ethanol is produced from lignocellulosic biomass, which is primarily composed of cellulose and lignin found in dry plant matter.

Lignocellulosic biomass can be generally categorized as virgin biomass from naturally occurring plants, waste biomass from industrial and agricultural by-products, and energy crops that are grown specifically for cellulosic ethanol production.The second thermochemical ethanol production process does not use any microorganisms.

In this process, biomass materials are first thermochemically gasified and the synthesis gas passed through a reactor containing catalysts, which cause the gas to be converted into ethanol.up the structure of the cellulose component.

The cellulose portion is broken down (hydrolyzed) by en-zymes into glucose sugar that is fer-mented to ethanol. The sugars from the hemicellulose are also fer-mented to ethanol. The lignin is burned as fuel to power the process. Scientists involved in DOE-sponsored studies at the NationalFile Size: KB.