Methanol purification method and apparatus

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United States of America Patent

PATENT NO 9320986
APP PUB NO 20110306807A1
SERIAL NO

13201206

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Abstract

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The invention relates to a method and apparatus to recover and purify methanol from gases produced in the digester during the kraft pulping process. The gas is typically recovered as a foul gas (called stripper off gas or SOG) comprising methanol, water and various other contaminants. The gas is then treated with successive decanting and distillation steps to remove impurities, thereby producing highly purified methanol.

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Patent Owner(s)

Patent OwnerAddress
A H LUNDBERG SYSTEMS LTD300 - 5055 JOYCE STREET VANCOUVER B C V5R 4G7

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Der, Bruce Vancouver, CA 4 20
Jensen, Allan Stewart Vancouver, CA 2 4

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