Method and device for fluid-bed destructive distillation of oil shale
An oil shale and fluidized bed technology, applied in the field of oil shale dry distillation, can solve the problem of high carbon burning load, and achieve the effects of low carbon burning load, small structure size and low investment
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[0050] 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 70 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 70 entering the oil shale raw material feed pipe 7) is 150kg / day.
[0051] In Examples 1 to 7, the gas linear velocity in the dilute phase section of the bed-type dry distillation reactor 22 is all 0.68 m / s. The temperature of the mixed semi-coke bed in the stripping section 24 is 500°C, and the stripping medium is the stripping steam 90 at 500°C. The stripped mixed semi-coke that enters the heat extractor 25 through the semi-coke discharge pipe 14 is cooled to 80° C. by the heat extraction medium (wate...
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