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 problems of easy over-temperature damage to the charcoal burner, difficulty in controlling the charcoal burning temperature, and low shale oil yield, so as to ensure long-term operation , High charcoal burning efficiency and high charcoal burning rate
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[0053] Example
[0054] in figure 1 On the small-scale test device of the fluidized bed dry distillation device shown, six sets of tests (Example 1 to Example 6) were carried out according to the steps of the oil shale dry distillation method described in the specific implementation section of this specification. The oil shale raw materials 27 are all made of ylang-ylang oil shale powder raw materials, the properties are shown in Table 1; the feed rate (weight flow rate of the oil shale raw material 27 entering the oil shale raw material feed pipe 26) is 150 kg / day.
[0055] In Examples 1 to 6, the gas linear velocity in the dilute phase section of the bed-type dry distillation reactor 21 is 0.65 m / s. The temperature of the mixed semi-coke bed in the stripping section 28 is all 500°C, and the stripping medium is all 500°C stripping steam 30. The high-temperature heat carrier that enters the heat extractor 8 through the high-temperature heat carrier discharge pipe 7 is taken by th...
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