PURPOSE: To contrive to improve the contact efficiency between fluid and catalyst layer by preventing the pressure loss and block formation in catalyst layer by means of disposing the raw material-supplying tube with a double pipe structure onto a catalyst-filling reactor, and blowing raw material oil and hydrogen gas supplied from the upper portion of the reactor to the lower portion of the catalyst layer under indirect preheating of the raw material oil and hydrogen gas, respectively.
CONSTITUTION: A hydrocarbon oil from the upper portion of a raw material- supplying pipe 1 and hydrogen gas in an amount of 1.5-3 times that of the hydrocarbon oil from the upper portion of a raw material pipe 2 indirectly pre-heated by the heating of a catalyst layer 3, respectively, are supplied into a reactor filled with the catalyst having an average particle size of 0.2-8mm, and simultaneously carried downward, followed by blowing both the raw material oil and hydrogen gas into the lower portion of the catalyst layer 3 in a high speed. Thereby, the particulate catalyst, the hydrocarbon oil and the hydrogen gas are mixed with stirring and boiled to perform the liquid phase hydrogenation reaction while preserving conditions of temperature at 340-480°C and pressure of 50-300kg/cm2G.
SUZUMURA HIROSHI
KONDO MASAMI
| JPS57187029A | 1982-11-17 |
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