Wet start-up method for hydrogenation unit, energy-saving hydrogenation process and hydrogenation apparatus
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United States of America Patent
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Feb 21, 2017
Grant Date -
May 8, 2014
app pub date -
Oct 31, 2013
filing date -
Nov 3, 2012
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Abstract
The present invention relates to a wet start-up method for hydrogenation unit, an energy-saving hydrogenation process, and a hydrogenation apparatus. The method involves heating a start-up activating oil to a specific temperature and flowing the heated oil through a bed of hydrogenation catalyst bed, so that the temperature at the catalyst bed layer is increased to 180±10° C. or above by means of heat exchange and the reaction heat generated from activation in the start-up method.
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