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Method for producing liquid fuel by performing fast pyrolysis on solid organic matters

A technology for solid organic matter and liquid fuel, which is applied in the preparation of biofuel and liquid hydrocarbon mixture, direct heating and dry distillation, etc. It can solve the problems of solid product cooling engineering difficulties, affecting process economy, and high ash content.

Active Publication Date: 2013-12-18
ECO ENVIRONMENTAL ENERGY RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the solid products produced by pyrolysis are exported as by-products, their application is limited due to the high ash content of the solid products produced by pyrolysis, thus affecting the economics of the process
At the same time, the cooling of the output by-product, the solid product from pyrolysis, also poses engineering difficulties
[0006] In addition, for the above-mentioned moving bed pyrolysis reactor and rotary furnace pyrolysis reactor, the enlargement of the device is also a problem to be solved
In order to meet the requirements of pyrolysis volatiles quickly leaving the reaction space, the cross-sectional area and volume of the pyrolysis reactor should not be too large, so the production capacity of a single pyrolysis reactor is generally small

Method used

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  • Method for producing liquid fuel by performing fast pyrolysis on solid organic matters
  • Method for producing liquid fuel by performing fast pyrolysis on solid organic matters
  • Method for producing liquid fuel by performing fast pyrolysis on solid organic matters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] The rapid co-pyrolysis of white pine sawdust and lignite is carried out in the experimental device with a raw material handling capacity of 1kg / h. The operating principle of the experimental device is the same as figure 1 . The air-dried base moisture, air-dried base volatile matter, air-dried base ash, particle size of the first raw material white pine sawdust and the second raw material lignite are 5.0wt%, 77.7wt%, 0.3wt%, less than 3mm and 27.9wt%, 35.1 wt%, 7.9wt%, less than 2mm. Before the experiment, the raw materials were dried in an oven at 105-110°C for 3 hours. Olivine particles with a particle size of 0.2-1.2mm are used as the circulating solid heat carrier.

[0066] The dried white pine sawdust and lignite are quantitatively fed into the secondary screw feeder from their respective raw material storage tanks via the corresponding primary screw feeder, and the feeding rate is the same as 250g / h. The mixture of white pine sawdust and lignite is quickly conv...

Embodiment 2

[0075] The rapid co-pyrolysis of white pine sawdust and lignite was carried out in the experimental device with a raw material handling capacity of 1kg / h. The solid heat carrier dust collector 1 in the experimental device was replaced by the solid heat carrier classifying dust collector 1 with particle size classification function, and the others were the same Example 1.

[0076] Solid heat carrier classifying dust collector 1 adopts Figure 5 The structure shown is composed of an inner cylinder 11 and an outer cylinder 12. The bottoms of the inner and outer cylinders are conical, and there is a solid heat carrier outlet at the bottom, which leads to the mixing unit 2 of the moving bed pyrolysis reactor and the moving particle layer filter respectively. Dust collector 5. The top of the inner cylinder 11 is open, and the height is about 1 / 3-2 / 3 of the height of the outer cylinder 12 . The center of the top of the solid heat carrier classifying dust collector is provided with ...

Embodiment 3

[0081] The rapid pyrolysis of young bituminous coal is carried out in an experimental device with a raw material handling capacity of 1kg / h. The operating procedure of the experimental device is shown in Figure 4 . The air-dry basis moisture, air-dry basis volatile matter, air-dry basis ash content and particle size of raw bituminous coal are 10.3wt%, 28.5wt%, 4.1wt% and less than 2mm, respectively. Before the experiment, the raw materials were dried in an oven at 105-110°C for 3 hours. The solid product produced by the pyrolysis of raw coal is used as the circulating solid heat carrier.

[0082] The feed rate of raw coal after drying was 350 g / h. The flow rate of the circulating solid product entering the pyrolysis reactor from the inner cylinder 11 of the solid heat carrier classifying dust collector is controlled at 1.2kg / h.

[0083] The flow rate of the circulating solid product entering the mobile particle layer filter dust collector 5 from the outer cylinder 12 of th...

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Abstract

The invention provides a method for producing a liquid fuel by heating solid organic matter materials with solid thermal carriers as heating media. The method comprises the steps of heating the solid organic matter materials with a first part of solid thermal carriers as a heating medium to perform pyrolysis on the materials so as to obtain a liquid fuel, and capturing dust in gaseous products produced from pyrolysis by adopting a second part of the solid thermal carriers. The invention also provides a corresponding system. The system comprises a pyrolysis reactor and a movable particle layer filtering and dust cleaning device. Compared with a traditional rapid pyrolysis method based on a solid thermal carrier heating technology, in which solid thermal carriers are taken as a single heating medium, the method provided by the invention is characterized in that circulating solid thermal carrier particles have dual functions, and are taken as the heating media to perform rapid pyrolysis on the solid organic matter materials and also as a filter material for particle layer filtration to capture the dust in the gaseous products subjected to pyrolysis.

Description

technical field [0001] The invention belongs to the technical field of energy and chemical industry, and relates to a method for rapidly pyrolyzing solid organic raw materials to prepare liquid fuel by using solid heat carrier particle heating technology and filtering dust removal technology. Background technique [0002] Certain highly volatile solid organics can produce gaseous, liquid, and solid products when pyrolyzed. It is an economical and effective way to produce liquid fuels by using fast pyrolysis and co-pyrolysis technology from specific high-volatile solid organic matter such as biomass, low rank coal, oil shale, and high-molecular solid waste. [0003] In order to obtain high-yield liquid fuel products, the following basic conditions should be met: rapid heating of the processed materials; appropriate pyrolysis temperature (375 ° C ~ 650 ° C); short residence time of product vapor (less than several seconds); product quenching. In addition, the use of hydrogen-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/02C10B53/04C10B53/06C10B49/18C10B57/00C10B57/18C10G1/00
CPCY02E50/10
Inventor 徐绍平王超王光永肖亚辉亚力昆江吐尔逊萧锦诚徐彬周晓莹
Owner ECO ENVIRONMENTAL ENERGY RES INST
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