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Title: TVA/DOE Integrated Onfarm Alcohol Production System Alternate Feedstock Evaluations

Abstract

The purpose of this Interagency research project is to study the feasibility of small-scale fuel alcohol production from agricultural crops. The project was conducted in three phases. Phase I included an assessment of the potential for fuel alcohol production from agricultural crops and design, construction, and startup operation of a 10-gallon-per-hour evaluation facility. Phase II included validation and optimization of the facility with a corn feedstock, modifications to the base unit to accommodate nongrain feedstocks, initial production and conversion evaluations of nongrain feedstocks, and preparation of a construction and operation manual. Phase III included further evaluations and refinement of processes and equipment for handling nongrain feedstocks, evaluation of stillage by-products as feeds, and development of agricultural systems for integrating alcohol production with other farm enterprises. This report provides: (1) a brief background of Phase I-III activities; (2) results of alternate feedstock choices, cultural trials, and testing results; (3) a description of the process for ethanol production from starch and sugar feedstocks; and (4) conversion procedures, sterilization requirements, and distillation methods for several feedstocks. 23 refs., 8 figs., 25 tabs.

Authors:
 [1]
  1. (comp.)
Publication Date:
Research Org.:
Tennessee Valley Authority, Muscle Shoals, AL (USA). Office of Agricultural and Chemical Development
OSTI Identifier:
6224927
Report Number(s):
DOE/CS/80010-T9
ON: DE86003905
DOE Contract Number:
AI01-80CS80010
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; ETHANOL; PRODUCTION; ETHANOL PLANTS; FEASIBILITY STUDIES; BY-PRODUCTS; COORDINATED RESEARCH PROGRAMS; CROPS; EQUIPMENT; FERMENTATION; MAIZE; MANUALS; TENNESSEE VALLEY AUTHORITY; US DOE; ALCOHOLS; BIOCONVERSION; CEREALS; DOCUMENT TYPES; GRASS; HYDROXY COMPOUNDS; INDUSTRIAL PLANTS; NATIONAL ORGANIZATIONS; ORGANIC COMPOUNDS; PLANTS; RESEARCH PROGRAMS; US ORGANIZATIONS; 090222* - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989); 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)

Citation Formats

Cox, R.J.. TVA/DOE Integrated Onfarm Alcohol Production System Alternate Feedstock Evaluations. United States: N. p., 1985. Web.
Cox, R.J.. TVA/DOE Integrated Onfarm Alcohol Production System Alternate Feedstock Evaluations. United States.
Cox, R.J.. Sun . "TVA/DOE Integrated Onfarm Alcohol Production System Alternate Feedstock Evaluations". United States. doi:.
@article{osti_6224927,
title = {TVA/DOE Integrated Onfarm Alcohol Production System Alternate Feedstock Evaluations},
author = {Cox, R.J.},
abstractNote = {The purpose of this Interagency research project is to study the feasibility of small-scale fuel alcohol production from agricultural crops. The project was conducted in three phases. Phase I included an assessment of the potential for fuel alcohol production from agricultural crops and design, construction, and startup operation of a 10-gallon-per-hour evaluation facility. Phase II included validation and optimization of the facility with a corn feedstock, modifications to the base unit to accommodate nongrain feedstocks, initial production and conversion evaluations of nongrain feedstocks, and preparation of a construction and operation manual. Phase III included further evaluations and refinement of processes and equipment for handling nongrain feedstocks, evaluation of stillage by-products as feeds, and development of agricultural systems for integrating alcohol production with other farm enterprises. This report provides: (1) a brief background of Phase I-III activities; (2) results of alternate feedstock choices, cultural trials, and testing results; (3) a description of the process for ethanol production from starch and sugar feedstocks; and (4) conversion procedures, sterilization requirements, and distillation methods for several feedstocks. 23 refs., 8 figs., 25 tabs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Sep 01 00:00:00 EDT 1985},
month = {Sun Sep 01 00:00:00 EDT 1985}
}

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  • Equipment and procedures necessary for using a grain (corn) feedstock for onfarm alcohol production were refined and documented to provide benchmark data. Also, significant progress was made in developing technology to convert other agricultural crops into 190-proof alcohol with the farm-sized alcohol production facility. This was achieved by modifying the base alcohol-from-grain facility to process the nongrain feedstocks (Irish potatoes, sweet sorghum, sweet potatoes, sugar beets, fodder beets, and Jerusalem artichokes) being evaluated in field production trials by TVA. Alcohol production capacities of cull potatoes, water chestnuts, and cull apples were also tested. A computerized investment model was refined tomore » predict rapidly the economic implications for alcohol production levels, feedstocks, and various system components.« less
  • This contract has provided for the documentation of the feasibility of fuel alcohol production with small onfarm facilities, and for the design and construction of an efficient and easily constructed production facility. A feasibility study and a preliminary design report have been prepared. A prototype facility has been designed and constructed with a design production rate of 10 gallons per hour of 190-proof ethanol. The components of the facility are readily available through normal equipment supply channels or can be primarily owner-constructed. Energy efficiency was also of prime consideration in the design, and heat recovery equipment is included where practical.more » A renewable fuel boiler is used for process heat. Applicable safety standards and environmental requirements were also incorporated into the design. Other project activities included modification of a pickup truck to use the hydrous alcohol produced, evaluation of vacuum distillation for onfarm units, and development of a computer program to allow detailed economic analyses of fuel alcohol production. Efforts were also initiated to evaluate nongrain feedstocks, develop a preliminary design for a low-cost wood-fired boiler, and evaluate packed distillation columns constructed of plastic pipe.« less
  • An analytical investigation was conducted on the impact of intermittent wind generation on the operations of the TVA power system. The investigation was divided into three phases. The first phase was the documentation of the 1978 TVA power system, which was selected as the base case. The second phase dealt with the hypothetical reconfiguration of the TVA transmission system to accommodate up to 8480 MW of wind-generating capacity. The third phase was the simulation of the daily operations of the TVA system with wind generation. The major conclusions of the second phase were the control and protection schemes for windmore » energy conversion systems (WECS). Transient stability studies showed that WECS units could be integrated into the TVA power system without compromising the system integrity. Results of the simulations in the third phase showed that, if wind generation is treated as a controlled negative load with the assumed short-term wind generation variability, the impacts on load frequency control may be significant enough to warrant limiting the penetration levels of wind-generating capacity to about 15% of the total power system generating capacity.« less
  • The overall objective of this investigation is to determine the impacts of significant amounts of intermittent generation, in this case, wind generation on the operations of an electric power system. In a program sponsored by the US Department of Energy (DOE), the Tennessee Valley Authority (TVA) conducted an analytical investigation of the impact of intermittent wind generation on the operations of the TVA power system. The investigation was divided into three phases. The first phase was the documentation of the 1978 TVA power system, which was selected as the base case. The second phase dealt with the hypothetical reconfiguration ofmore » the TVA transmission system to accommodate up to 8480 MW of wind-generating capacity. The third phase was the simulation of the daily operations of the TVA system with wind generation.« less
  • The overall objective of this investigation was to determine the impacts of significant amounts of intermittent generation - in this case, wind generation on the operations of an electric power system. In a program sponsored by the US Department of Energy (DOE), the Tennessee Valley Authority (TVA) conducted an analytical investigation of the impact of intermittent wind generation on the operations of the TVA power system. The investigation was divided into three phases. The first phase was the documentation of the 1978 TVA power system, which was selected as the base case. The second phase dealt with the hypothetical reconfigurationmore » of the TVA transmission system to accommodate up to 8480 MW of wind-generating capacity. The third phase was the simulation of the daily operations of the TVA system with wind generation.« less