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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

Active Publication Date: 2014-04-30
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a fluidized bed carbonization method and device for oil shale, so as to solve the problem existing in the existing oil shale fluidized bed carbonization technology because all the mixed semi-coke enters the charcoal burner for charcoal burning. problems such as high charcoal load

Method used

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  • Method and device for fluid-bed destructive distillation of oil shale
  • Method and device for fluid-bed destructive distillation of oil shale
  • Method and device for fluid-bed destructive distillation of oil shale

Examples

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Embodiment

[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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Abstract

The invention discloses a method and a device for fluid-bed destructive distillation of oil shale. The method and the device for the fluid-bed destructive distillation of the oil shale solve the problems of high coal burning load due to the fact that all mixed carbocoal enters a coal burning device for coal burning and the like in the prior art. The method for the fluid-bed destructive distillation of the oil shale comprises the steps that destructive distillation reaction is carried out on oil shale raw materials (5) and high-temperature heat carriers from a bed type coal burning device (1) after the oil shale raw materials (5) and the high-temperature heat carriers are mixed in a bed type destructive distillation reactor (23), and oil gas contained in the formed mixed carbocoal is extracted from a steam extracting section (26) in a steaming mode; part of the mixed carbocoal is discharged out of the destructive distillation device after the oil gas is extracted from the mixed carbocoal and the mixed carbocoal is cooled, and the other part of the mixed carbocoal enters a pipe type coal burning device (25); and a first coal burning is firstly carried out on the mixed carbocoal entering the pipe type coal burning device, and then the mixed carbocoal enters a bed type coal burning device for a second coal burning. The invention discloses the device for the fluid-bed destructive distillation of the oil shale, wherein the device for the fluid-bed destructive distillation of the oil shale is used for realizing the method for the fluid-bed destructive distillation of the oil shale. The method and the device for the fluid-bed destructive distillation of the oil shale are mainly used for destructive distillation processing of various kinds of powder oil shale raw materials.

Description

technical field [0001] The invention belongs to the technical field of oil shale dry distillation, and relates to a fluidized bed dry distillation method and device for oil shale. Background technique [0002] With the increasing scarcity of oil resources and the advent of the era of high oil prices, the use of oil shale dry distillation technology to produce shale oil in countries around the world has become an important plan to replace and supplement oil resources. Oil shale, also known as kerogen shale, is a sedimentary rock containing organic matter. Organic matter in oil shale is usually composed of two substances: one is asphaltene, and the other is high molecular polymer (called kerogen). Inorganic substances in oil shale mainly include quartz, kaolin, clay, mica, carbonate rock and pyrite. After oil shale is heated and dry-distilled, shale oil, dry distillation gas and shale semi-coke are produced. Shale oil can be directly used as fuel oil, and can also be furthe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/06C10B57/00
Inventor 王文柯王伟东王龙延胡敏张亚西王伟樊麦跃杨少锋陈章淼宁秋实李龙家宋军王永学
Owner CHINA PETROLEUM & CHEM CORP
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