Shale oil dry distillation refining waste gas resource treatment and recovery method
A recovery method and technology for shale oil, applied in the field of light hydrocarbons and aromatic hydrocarbons, can solve the problems of retorting furnace affecting heating efficiency, affecting production output, wasting resources, etc., and achieving the effects of reducing air pollution, saving energy, and improving efficiency
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Embodiment 1
[0018] A petrochemical company's shale oil dry distillation refinery waste gas, in which the content of light hydrocarbons and aromatic hydrocarbons is 6100mg / Nm 3 , the specific recycling method is as follows:
[0019] 1. After condensing the waste gas containing light hydrocarbons and aromatic hydrocarbons produced by the dry distillation and refining of shale oil in the retort furnace, the obtained waste gas has a flow rate of 12Nm 3 Under the condition of / h, it passes through the resin column filled with 40LInnovate-30 macroporous adsorption resin, and the intake time is 18h.
[0020] 2. Blow off the resin column that has absorbed shale oil carbonization and refining waste gas with 0.09 MPa low-pressure steam at 112-115° C. at a flow rate of 50 kg / h.
[0021] 3. The blown-off shale oil carbonization and refinery waste gas and steam are condensed through a spiral plate heat exchanger, and the condensate is layered through an oil-water separator to recover light hydrocarbo...
Embodiment 2
[0028] In step 1 of the present embodiment, the exhaust gas obtained at a flow rate of 15Nm 3 Under the condition of / h, it passes through the resin column packed with 40LInnovate-30 macroporous adsorption resin. Other steps are identical with embodiment 1. Table 2 shows the high performance liquid chromatography detection results of the upper oil liquid recovered by layering through the oil-water separator.
[0029] Table 2 Recovery effect of shale oil carbonization and refining waste gas
[0030] sequence n-paraffin P Isoparaffin I Alkene O Naphthene N Aromatics A row sum NoPeakA% (m / m) C1 C2 C3 C4 0.009 0.013 0.023 0.045 0.014 C5 0.135 0.257 0.162 0.554 0.038 C6 0.607 1.512 0.675 0.234 33.248 36.276 0.017 C7 0.705 3.925 0.563 0.266 10.588 16.047 0.052 C8 0.837 1.988 0.03 1.692 9.227 13.774 0.421 C9 1.184 8.98 0.446 1.94 4.659 17....
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