Suitable seals lower the total cost of ownership
Article Abstract:
Installing suitable mechanical seals to run equipment in chemical process operations helps lower the total cost of ownership. Liquid-lubricated and noncontacting gas-lubricated seals almost never wear out if used within their design limits. A gas-lubricated seal is more energy efficient as this technology normally utilizes 10% of the energy of a liquid-lubricated dual seal. Seal failure occurs because of mechanical difficulties or system operating problems.
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 1998
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Supercritical CO2 pasteurizes food more cheaply than heat treatment
Article Abstract:
A procedure that totally pasteurizes liquid foodstuffs through the application of supercritical carbon dioxide has been discovered by scientists at Kyushu University in Japan. A bubbler permits a high concentration of carbon dioxide in the liquid and the CO2 penetrates the contaminating bacilli's cells. The cell membranes burst upon release of the pressure because of the expanding gas.
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 1999
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