Method and device for fluid-bed destructive distillation of oil shale
A technology of oil shale and fluidized bed, which is applied in the field of oil shale carbonization, which can solve the problem of high charcoal burning load and achieve the effects of strong charcoal burning capacity, long-term operation, and small heat loss
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[0051] exist figure 1 On the small-scale test device of the fluidized bed carbonization device shown, 7 groups of tests (Example 1 to Example 7) were carried out according to the steps of the oil shale carbonization method described in the specific embodiment section of this specification. The oil shale raw material 5 is made of Ylang-ylang oil shale powder raw material, and its properties are shown in Table 1; the feed rate (the weight flow rate of the oil shale raw material 5 entering the oil shale raw material feed pipe 4) is 150kg / day.
[0052] In Examples 1 to 7, the gas linear velocity in the dilute phase section of the bed-type carbonization reactor 23 is all 0.7 m / s. The temperature of the mixed semi-coke bed in the stripping section 26 is 500°C, and the stripping medium is the stripping steam 121 at 500°C. The stripped mixed semi-coke that enters the heat collector 10 through the semi-coke discharge pipe 11 is cooled to 80°C by the heat extraction medium (water at am...
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