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Surfactant studies for bench-scale operation. Final technical progress report, July 1, 1992--March 31, 1994

Description: The present work effort relates to an investigation of surfactant-assisted coal liquefaction with the objective of quantifying the enhancement in overall coal conversions and the product quality. Based on the results of a Phase 1 preliminary study on the effect of several surfactants on coal liquefaction, sodium lignosulfonate was chosen as the surfactant for a detailed parametric study to be conducted at JPL using a batch autoclave reactor. These tests primarily related to thermal liquefaction… more
Date: March 31, 1994
Creator: Hickey, G. S. & Sharma, P. K.
Partner: UNT Libraries Government Documents Department
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Thermoelectric material development. Final report

Description: A search was made for improved TE materials that could have higher efficiency than state-of-the-art SiGe alloys used in Radioisotope Thermoelectric Generators. A new family of materials having the skutterudite structure was identified (cubic space group Im3, formula (Fe, Co, Ni)As{sub 3}). Properties of n-type IrSb{sub 3}, CoSb{sub 3}, and their solid solutions were investigated. Pt, Te, Tl, and In were used as dopants. The thermal conductivity was reduced by about 70% for the solid solutions v… more
Date: October 1, 1994
Creator: Vandersande, J.W.; Allevato, C. & Caillat, T.
Partner: UNT Libraries Government Documents Department
open access

Surfactant studies for bench-scale operation; Sixth quarterly technical progress report, October 1, 1993--December 31, 1993

Description: A phase II study has been initiated to investigate surfactant-assisted coal liquefaction, with the objective of quantifying the enhancement in liquid yields and product quality. This report covers the sixth quarter of work. The major accomplishments were (1) Completion of the distillation of the liquid product from coal liquefaction autoclave reactor runs with Illinois No. 6 coal at 400{degree}C, with and without surfactant and/or catalyst at pressures of 1700 psig, (2) Batch autoclave runs at … more
Date: January 21, 1994
Creator: Hickey, G.S. & Sharma, P.K.
Partner: UNT Libraries Government Documents Department
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