Process feasibility study in support of silicon material task 1. Quarterly technical progress report (XVII), September-November 1979

Technical Report · Sat Dec 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/5629176· OSTI ID:5629176

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

Analyses were continued for process system properties of chemical materials important in the production of silicon. Primary activities were initiated for physical, transport and thermodynamic property data of silicon. Progress and status including preliminary data collection and analysis results are reported for the primary activities of data collection (90%), data analysis (80%), estimation (70%), and correlation (60%). Process design results for BCL process-Case A (two deposition reactors and six electrolysis cells) were presented recently. During this reporting period, major chemical engineering efforts were initiated on preliminary process design of the BCL process-Case B (one deposition reactor and two electrolysis cells). Chemical engineering design results are reported for Case B including raw materials, utilities, major process equipment and production labor requirements for a silicon plant of 1000 MT/yr capacity. For economic analysis, major efforts centered on cost sensitivity analysis for the BCL process-Case A for producing silicon. Cost sensitivity results are presented for the influence of primary cost parameters. For both 1975 and 1980 time periods, the results indicate that the cost parameters influence on product cost is: plant investment (most), raw materials (intermediate), utilities (intermediate) and labor (least). For profitability, the results indicate a sales price of 14 $/kg (1980 dollars), at a 7.5% DCF rate of return on investiment after taxes. These results suggest good potential of the BCL process for meeting the LSA cost goal of $14 per kg (1980 dollars).

• Research Organization: Lamar Univ., Beaumont, TX (USA). Dept. of Chemical Engineering
• DOE Contract Number: NAS-7-100-954343
• OSTI ID: 5629176
• Report Number(s): DOE/JPL/954343-17
• 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 REACTORS
DIRECT ENERGY CONVERTERS
ECONOMIC ANALYSIS
ECONOMICS
ELECTROLYTIC CELLS
ELEMENTS
EQUIPMENT
LABOR
MATERIALS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PRODUCTION
RAW MATERIALS
SEMIMETALS
SILICON
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
THERMODYNAMIC PROPERTIES