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Title: A pilot plant scale Continuous Stirred Reactor/Separator for the production of ethanol from corn grits/starch and biomass streams. [Quarterly progress report, May 1, 1994--August 1, 1994]

Abstract

This project seeks to develop and demonstrate an improved reactor for the production of ethanol from starch and ligno-cellulosic streams. Bio-Process Innovations holds a patent on this reactor technology, and is directing the project. A Continuous Stirred Reactor Separator (CSRS) is being built on a pilot plant scale for testing at a small Iowa ethanol plant (Permeate Refining) while bench scale tests on the reactor system are being performed at Purdue University. The CSRS unit combines several operations within the confines of the reactor vessel- (1) complex carbohydrates are reduced to simple sugars by enzymatic breakdown, (2) sugars are converted to ethanol by yeast or bacteria, and (3) the ethanol is separated by a stripping gas stream. The ethanol is removed from the stripping gas in an absorber, and then taken to an extractive distillation column. This unit should allow concentrated feeds to be converted to ethanol, and the use of bottoms recycle will be extensively tested to establish the limits of minimizing net bottoms water production leaving the plant. Lab scale tests raw starch conversion in a 4-liter CSRS unit have been completed, a flocculating yeast strain has been selected with some ongoing characterizations studies being performed, a xylosemore » fermenting yeast strain has been selected from among five or six best performing strains. Ongoing studies yet to be completed include testing of the effects of bottoms water recirculation on fermentation performance, testing of raw starch degrading enzymes as produced by various strains of Aspergillus, lignocellulosic conversion to ethanol, and molasses conversion to ethanol.« less

Authors:
Publication Date:
Research Org.:
Bio-Process Innovation, Inc., West Lafayette, IN (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10190038
Report Number(s):
DOE/CE/15594-T1
ON: DE95001491; BR: EF7202000
DOE Contract Number:  
FG01-94CE15594
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: [1994]
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; BIOREACTORS; PERFORMANCE TESTING; PILOT PLANTS; DESIGN; ETHANOL; PRODUCTION; ETHANOL PLANTS; FEASIBILITY STUDIES; MAIZE; STARCH; FERMENTATION; PH VALUE; PROGRESS REPORT; 090900; 320303; PROCESSING; EQUIPMENT AND PROCESSES

Citation Formats

Dale, M C. A pilot plant scale Continuous Stirred Reactor/Separator for the production of ethanol from corn grits/starch and biomass streams. [Quarterly progress report, May 1, 1994--August 1, 1994]. United States: N. p., 1994. Web.
Dale, M C. A pilot plant scale Continuous Stirred Reactor/Separator for the production of ethanol from corn grits/starch and biomass streams. [Quarterly progress report, May 1, 1994--August 1, 1994]. United States.
Dale, M C. 1994. "A pilot plant scale Continuous Stirred Reactor/Separator for the production of ethanol from corn grits/starch and biomass streams. [Quarterly progress report, May 1, 1994--August 1, 1994]". United States.
@article{osti_10190038,
title = {A pilot plant scale Continuous Stirred Reactor/Separator for the production of ethanol from corn grits/starch and biomass streams. [Quarterly progress report, May 1, 1994--August 1, 1994]},
author = {Dale, M C},
abstractNote = {This project seeks to develop and demonstrate an improved reactor for the production of ethanol from starch and ligno-cellulosic streams. Bio-Process Innovations holds a patent on this reactor technology, and is directing the project. A Continuous Stirred Reactor Separator (CSRS) is being built on a pilot plant scale for testing at a small Iowa ethanol plant (Permeate Refining) while bench scale tests on the reactor system are being performed at Purdue University. The CSRS unit combines several operations within the confines of the reactor vessel- (1) complex carbohydrates are reduced to simple sugars by enzymatic breakdown, (2) sugars are converted to ethanol by yeast or bacteria, and (3) the ethanol is separated by a stripping gas stream. The ethanol is removed from the stripping gas in an absorber, and then taken to an extractive distillation column. This unit should allow concentrated feeds to be converted to ethanol, and the use of bottoms recycle will be extensively tested to establish the limits of minimizing net bottoms water production leaving the plant. Lab scale tests raw starch conversion in a 4-liter CSRS unit have been completed, a flocculating yeast strain has been selected with some ongoing characterizations studies being performed, a xylose fermenting yeast strain has been selected from among five or six best performing strains. Ongoing studies yet to be completed include testing of the effects of bottoms water recirculation on fermentation performance, testing of raw starch degrading enzymes as produced by various strains of Aspergillus, lignocellulosic conversion to ethanol, and molasses conversion to ethanol.},
doi = {},
url = {https://www.osti.gov/biblio/10190038}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Oct 01 00:00:00 EDT 1994},
month = {Sat Oct 01 00:00:00 EDT 1994}
}

Technical Report:
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