A kind of upflow differential velocity controlled cracking hydrogenation reactor and its application
A reactor and temperature control technology, applied in chemical instruments and methods, chemical/physical processes, preparation of liquid hydrocarbon mixtures, etc. Effect
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Embodiment 1
[0041] This embodiment provides a reactor for upstream differential velocity controlled cracking and hydrogenation, such as figure 1 As shown, the reactor includes a closed shell 5;
[0042] A conical bottom feeding port 1 is located at the bottom of the housing 5;
[0043] A tapered outlet 6 is located on the top of the housing 5;
[0044] The temperature control sensing device 2 and the density measurement sensing device 3 are arranged in pairs on the side wall of the housing 5;
[0045]And the side wall hydrogen injection hole 4, and the side wall hydrogen injection hole 4, the side wall hydrogen injection hole 4 is arranged on the two pairs of the temperature control sensing device 2 and the density measurement sensor arranged in pairs along the cold hydrogen flow direction. on the side wall of the housing between the sensing devices 3.
[0046] The aspect ratio of the reactor is 15:1-3:1.
[0047] The operating pressure of the reactor is 13-25MPa.
[0048] There are ...
Embodiment 2
[0054] This embodiment provides a process for cracking and hydrogenation with differential velocity control on upflow. The reactor described in Embodiment 1 is used. The aspect ratio of the first reactor used in this embodiment is 15:1. The specific steps are as follows:
[0055] (1) Deashing corn stalks with a particle size of 1 to 50 μm to obtain straw particles, mixing amorphous alumina (with a particle size of 5 μm to 50 μm) loaded with Mo oxides and Ni oxides with the straw particles and sulfur The mixture obtained by mixing at a mass ratio of 5:100:0.3 is added to medium and low temperature coal tar to form a slurry containing 10 wt% of biomass;
[0056] (2) Inject hydrogen at 60°C and 13MPa into the slurry for the first time until the volume ratio of high-pressure hydrogen to the slurry is 50:1, then raise the temperature of the slurry to 200°C, and inject hydrogen at 200°C and 13MPa for the second time into the slurry. Hydrogen, and control the volume ratio of the two ...
Embodiment 3
[0059] This embodiment provides a process for cracking and hydrogenation with differential velocity control at upstream. The reactor described in Embodiment 1 is used. The aspect ratio of the first reactor used in this embodiment is 10:1. The specific steps are as follows:
[0060] (1) Reed granules are obtained after deashing reeds with a particle size of 20-1000 μm, and amorphous alumina (with a particle size of 100 μm-150 μm) loaded with W oxide and Ni oxide is mixed with the reed particles and sulfur by pressing The mass ratio is that iron oxide, reed particles and sulfur are mixed in a mass ratio of 2:3:100:0.4 to obtain a mixture, and the mixture is added to vegetable oil to form a slurry containing 30 wt% of biomass;
[0061] (2) Inject hydrogen at 70°C and 20MPa into the slurry for the first time until the volume ratio of high-pressure hydrogen to slurry is 100:1, then raise the temperature of the slurry to 250°C in the heat exchanger, and then inject the second Inject...
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Abstract
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