Control of Accidental Releases of Hydrogen Selenide in Vented Storage Cabinets.

摘要

Highly toxic hydrogen selenide and hydrogen sulfide gases are used in the production of copper-indium-diselenide photovoltaic cells by reactive sputtering. In the event of an accident, these gases mat be released to the atmosphere and pose hazards to public and occupational safety and health. The paper outlines an approach for designing systems for the control of these releases given the uncertainty in release conditions and lack of data on the chemical systems involved. Accidental releases of these gases in storage cabinets can be controlled by either a venturi and packed-bed scrubber and carbon adsorption bed, or containment scrubbing equipment followed by carbon adsorption. These systems can effectively reduce toxic gas emissions to levels needed to protect public health. The costs of these controls (/approximately/$0. 012/W/sub p/) are small in comparison with current (/approximately/$6/W/sub p/) and projected (/approximately/$1/W/sub p/) production costs. 7 refs., 2 figs., 2 tabs. (ERA citation 14:000405)