Deoxidizing reaction device for oxygen-containing coalbed methane
A technology of reaction device and deoxygenation reactor, which is applied in the direction of gas fuel, petroleum industry, chemical instruments and methods, etc., can solve the problems of poor catalytic reaction effect, short service life of catalyst, difficult plugging of tubes, etc., and achieve low CO generation The effect of carbon deposition amount, long catalyst life and high O2 removal rate
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[0033] Example 1 is attached figure 2 The shown set of oxygen-containing coalbed methane deoxidation reaction test device mainly includes the main body of the catalytic reactor and the heat transfer and temperature control system;
[0034] The main body of the catalytic reactor is attached Image 6 As shown, it includes a shell 1, an axially structured catalyst reaction bed 2 and an inlet / outlet 15, a catalyst filling pipe 3, a catalyst unloading port 14, the lower part of the catalyst bed is filled with ceramic balls 11, and the reaction material in the catalyst bed The flow direction is top in and bottom out; the top is provided with a heat transfer medium distribution chamber 4 and a reflux chamber 21. The low-temperature heat transfer medium before heat absorption enters the heat transfer medium distribution chamber 4 through the heat transfer medium inlet, and distributes downward flow into the casing 10 In the inner tube 5, below the distribution chamber is the heat transf...
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[0053] Example 2
[0054] After completing the above test, remove the Venturi suction mixer and high-pressure centrifugal fan in the heat transfer medium circulation pipeline, set up a molten salt circulation pump, and change it to attached figure 1 In the process, 53% potassium nitrate, 40% sodium nitrite, 7% sodium nitrate ternary eutectic mixed molten salt is used as the heat transfer medium, and the molten salt is circulated through the molten salt pump, and the by-product steam of the heat exchanger will circulate the molten salt. The heat in the medium was taken away and the temperature was reduced by about 30°C. Various process conditions were tested. Each process condition was operated for 48 hours. The temperature, pressure and flow conditions of the coalbed methane and the main composition before and after deoxidation are shown in Table 6 below. -8 listed. During the test, the molten salt pressure in the reflux chamber is controlled at about 5kPa by controlling the molt...
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