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Economic evaluation of the MIT process for manufacture of ethanol (open access)

Economic evaluation of the MIT process for manufacture of ethanol

This report summarizes the results of an economic evaluation of the MIT process for the manufacture of ethanol from cellulosic residues. Conceptual process designs were developed for two cases, Case A which is based on the experimental data obtained to date, and Case B which hypothesizes the suppression of acid byproducts. Manufacturing costs, including profit, were estimated at $12.20/million Btu for Case A and $9.40/million Btu for Case B. These are equivalent to about $1.05 and $0.80/gal ethanol respectively. These economic estimates may be slightly on the low side since they do not consider feedstock storage nor working capital requirements. Nevertheless, the manufacturing costs for Case A appear to be comparable to those of the manufacture of ethanol from corn. The plant size used for this analysis was 1500 ton/day corn stover. This is considered to be a realistic size. The conceptual plants make about 27 million gal/yr ethanol in Case A and 41 million gal/yr in Case B. The MIT process appears to be one of the more promising programs being developed under contract for DOE. It is recommended that the process research be continued. Three areas of concern were identified which must be investigated before the process can …
Date: June 28, 1979
Creator: Jenkins, D. M. & Reddy, T. S.
System: The UNT Digital Library
Solar atrium: a hybrid solar heating and cooling system. Technical progress report No. 7, March 19, 1979-June 19, 1979 (open access)

Solar atrium: a hybrid solar heating and cooling system. Technical progress report No. 7, March 19, 1979-June 19, 1979

Construction progress is listed and photographs of the solar atrium are included. (MHR)
Date: June 28, 1979
Creator: Ueland, M.
System: The UNT Digital Library
Texas Turkey Poults: For Week Ending June 23, 1979 (open access)

Texas Turkey Poults: For Week Ending June 23, 1979

Weekly report of the Texas Crop and Livestock Reporting Service on turkey poult numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks during two years for turkey eggs set and poults hatched.
Date: June 28, 1979
Creator: Texas Crop and Livestock Reporting Service
System: The Portal to Texas History