Process feasibility study in support of silicon material task 1. Quarterly technical progress report (XX), June 1-August 31, 1980

Technical Report · Mon Sep 01 04:00:00 EDT 1980

DOI:https://doi.org/10.2172/5147209· OSTI ID:5147209

Yaws, C. L.; Li, K. Y.

Analyses of process system properties were continued for chemical materials important in the production of silicon including compilation and collection activities of the property data for use in the final report. Major efforts in chemical engineering analysis centered on the DCS process - Case A which involves production of dichlorosilane (DCS) as a silicon source material for polysilicon production in the Hemlock Semiconductor Corporation program. The preliminary process design of a plant to produce DCS was completed including process flowsheet (100%), base case conditions (100%), reaction chemistry (100%), raw materials (100%), utilities (100%), major process equipment (100%) and production labor (100%). The process design package was forwarded for economic analysis. Economic analysis of the DCS process - Case A was completed during this reporting period. The results for dichlorosilane (DCS) indicated a total product cost without profit of 1.29 $/kg (1980 dollars). This product cost without profit includes direct manufacturing cost, indirect manufacturing cost, plant overhead and general expenses. The sales price of DCS at 15% DCF rate of return on investment is 1.47$/kg (1980 dollars). Additional results are reported for sales price of dichlorosilane at various profitability levels as measured by ROI (return on original investment) and DCF (discounted cash flow rate of return).

• Research Organization: Lamar Univ., Beaumont, TX (USA). Dept. of Chemical Engineering
• DOE Contract Number: NAS-7-100-954343
• OSTI ID: 5147209
• Report Number(s): DOE/JPL/954343-80/20
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
CHEMICAL REACTIONS
COST
DIRECT ENERGY CONVERTERS
ECONOMIC ANALYSIS
ECONOMICS
ELEMENTS
EQUIPMENT
HYDRIDES
HYDROGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PRODUCTION
SEMIMETALS
SILANES
SILICON
SILICON COMPOUNDS
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT