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Process feasibility study in support of silicon material task 1Initial results for gas thermal conductivity of silicon tetrafluoride and trichlorosilane are reported in respective temperature ranges of 25 to 400 C and 50 to 400 C. For chemical engineering analyses, the preliminary process design for the original silane process of Union Carbide was completed for Cases A and B, Regular and Minimum Process Storage. Included are raw material usage, utility requirements, major process equipment lists, and production labor requirements. Because of the large differences in surge tankage between major unit operations the fixed capital investment varied from $19,094,000 to $11,138,000 for Cases A and B, respectively. For the silane process the original flowsheet was revised for a more optimum arrangement of major equipment, raw materials and operating conditions. The initial issue of the revised flowsheet (Case C) for the silane process indicated favorable cost benefits over the original scheme.
Document ID
19780015618
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Fang, C. S. (Lamar Univ. Beaumont, TX, United States)
Hansen, K. C. (Lamar Univ. Beaumont, TX, United States)
Miller, J. W., Jr. (Lamar Univ. Beaumont, TX, United States)
Yaws, C. L. (Lamar Univ. Beaumont, TX, United States)
Date Acquired
September 3, 2013
Publication Date
March 1, 1978
Subject Category
Energy Production And Conversion
Report/Patent Number
NASA-CR-157030
QTPR-1
ERDA/JPL-954343-78/1
Accession Number
78N23561
Funding Number(s)
CONTRACT_GRANT: JPL-954343
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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