Method and device for hydrogenation-desulfurization coupling modification of C9/C5 petroleum resin in transcritical reaction system
A reaction system, petroleum resin technology, applied in chemical instruments and methods, chemical/physical processes, etc., can solve the problems of no hydrogenation modified product manufacturers, equipment, catalysis requirements are very high, and the scope of application is limited. Improved reaction speed and balanced conversion rate, beneficial to manufacturing, and the effect of expanding the field of use
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Embodiment 1
[0035] Such as Figure 1-4 As shown, the device for blending hydrogenation modification of pine resin and C9 / C5 petroleum resin includes: dissolution kettle 1, hydrogenation reactor 2, expander 3, gas-liquid separator 4, absorption tower 5, turbine compression Machine 6, solvent pump 7.
[0036] The discharge port of the dissolution tank 1 is connected with the feed port of the hydrogenation reactor 2, and the dissolution tank 1 is used for dissolving raw materials required for production. The hydrogenation reactor 2 is cylindrical. The upper part of the hydrogenation reactor is provided with a feed inlet 21, a gas outlet 22, and the bottom is provided with a discharge outlet 23. The hydrogenation reactor 2 includes a heating pipe 24, which is a heating coil. It is arranged inside the hydrogenation reactor; the gas distributor 25 includes an air inlet 251 and a plurality of nozzles 252 for exhaust; the expander 3 is connected to the gas outlet of the hydrogenation reactor 2 ....
Embodiment 2
[0041] The reaction device used is the same as that of Example 1. The raw material C9 / C5 petroleum resin and hexanaphthene are added to the melting tank 1 in a mass ratio of 3:1, and the nickel-loaded catalyst of 30% of the mass fraction of the total raw material is added and mixed, heated, Melted to form a mixed material, the H 2 and CO 2 The mixed gas with a molar ratio of 1:1 is passed into the hydrogenation reactor 2, then heated to 150°C, and continuously filled with H 2 and CO 2 Mix the gas until the pressure in the hydrogenation reactor 2 is 3.0MPa, continue heating to 250°C, and then open the gas outlet valve of the hydrogenation reactor 2 to make the H generated during the hydrogenation reaction 2 S, the remaining gas H from the reaction 2 with CO 2 The mixed gas flows out continuously, and the inflow of the mixed gas is controlled to be 7000m 3 / h, enter the gas-liquid separator 4 after being throttled and expanded by the expander 3, and the gas phase flowing ou...
Embodiment 3
[0043] The reaction unit that uses is identical with embodiment 1, and C9 / C5 petroleum resin and 200# mineral spirits are added melting kettle 1 by mass ratio 5:1, the catalyst that adds the mass fraction 20% of the mass fraction of raw material total amount is mixed, heated, Melted to form a mixed material, the H 2 and CO 2 The mixed gas with a molar ratio of 10:1 is passed into the hydrogenation reactor 2, then heated to 150°C, and continuously filled with H 2 and CO 2 Mix the gas until the pressure in the hydrogenation reactor 2 is 7.0MPa, continue heating to 250°C, and then open the gas outlet valve of the hydrogenation reactor 2 to make the H produced during the hydrogenation reaction 2 S, the remaining gas H from the reaction 2 with CO 2 The mixed gas flows out continuously, and the inflow of the mixed gas is controlled to be 5000m 3 / h, enter the gas-liquid separator 4 after being throttled and expanded by the expander 3, and the gas phase flowing out from the hydr...
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Abstract
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