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A method for continuous pyrolysis and gasification of materials

A technology of pyrolysis gasification and materials, applied in the manufacture of combustible gas, petroleum industry, etc., can solve the problems of increased cost and limited space, and achieve the effect of improving the efficiency of energy recovery and utilization

Active Publication Date: 2019-05-17
SINOPEC DALIAN RES INST OF PETROLEUM & PETROCHEMICALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the arrangement of the microwave source in this method is limited to the lower part of the reaction chamber, and the space is limited. To realize flash pyrolysis cracking, it is necessary to equip a high-power magnetron to increase the microwave field strength, which will greatly increase the cost.

Method used

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  • A method for continuous pyrolysis and gasification of materials
  • A method for continuous pyrolysis and gasification of materials
  • A method for continuous pyrolysis and gasification of materials

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preparation example Construction

[0059] The preparation of the catalyst used in the embodiment

[0060] Using the method of dry ball milling, nickel oxide, potassium hydroxide and biocoke generated during the pyrolysis process were mixed according to the mass ratio of 1:1:10, and ball milled at a speed of 150 rpm for 2 hours to obtain uniform charcoal Powdered catalyst, then cold pressed into strip particles, the size is φ4mm×6mm, the obtained catalyst is defined as NiO 1.0 KOH 1.0 / C 10 , where the NiO content is 8.33%, and the KOH content is 8.33%.

Embodiment 1

[0062] Biomass raw material and microwave catalyst NiO 1.0 KOH 1.0 / C 10 According to the ratio of 15:1, it is sent into the microwave reaction chamber 2 through the screw feeder 1, and falls into the first-stage rotating disk 4 under the action of gravity (the diameter of the bottom surface of the cone is 3 / 5 of the inner diameter of the microwave reaction chamber, and the conical busbar and the horizontal direction The included angle is 15°), when the first-stage rotating disk 4 is basically covered with materials, simultaneously rotate the first-stage rotating disk 4 and the second-stage rotating disk 5 (the diameter of the bottom surface of the round platform is 19 / of the inner diameter of the microwave reaction chamber 20. The diameter of the upper bottom surface of the round table is 1 / 4 of the inner diameter of the microwave reaction chamber, and the angle between the busbar of the round table and the horizontal direction is 20°), under the action of the first-stage p...

Embodiment 2

[0064] Biomass raw material and microwave catalyst NiO 1.0 KOH 1.0 / C 10 According to the ratio of 2:1, it is sent into the microwave reaction chamber 2 through the screw feeder 1, and falls into the first-stage rotating disk 4 under the action of gravity (the diameter of the bottom surface of the cone is 1 / 2 of the inner diameter of the microwave reaction chamber, and the conical busbar and the horizontal direction The included angle is 10°), when the first-stage rotating disk 4 is basically covered with materials, simultaneously rotate the first-stage rotating disk 4 and the second-stage rotating disk 5 (the diameter of the bottom surface of the round platform is 9 / of the inner diameter of the microwave reaction chamber 10. The diameter of the upper bottom surface of the round table is 1 / 5 of the inner diameter of the microwave reaction chamber, and the angle between the busbar of the round table and the horizontal direction is 45°), under the action of the first-stage pro...

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Abstract

The invention discloses a method for continuous pyrolysis and gasification of a material. The method comprises the following steps: 1, a raw material and a catalyst enter a microwave pyrolysis and gasification system, fall to a first-stage rotating disc of a microwave reaction chamber, and sequentially undergo drying, activating and pyrolysis treatment with rotating; 2, a pyrolysis treated material falls to a second-stage rotating disc of the microwave reaction chamber, and the pyrolysis treated material and a pyrolysis volatile compound undergo a gasification and reforming reaction under the action of water vapor; and 3, a solid product obtained in step 2 falls to a residue storage tank below the microwave reaction chamber from middle holes of the second-stage rotating disc through a second-stage pushing baffle plate, and is discharged from a reaction system under stirring and screw dual action, and a gas product enters a settlement chamber from an annular sieve plate at the bottom of the microwave reaction chamber, and undergoes settlement treatment to obtain the gasification product. The method has the advantages of fast cracking speed, high gasification efficiency, high quality of the gas product, meeting of liquid fuel synthesis requirements, and good application prospect.

Description

technical field [0001] The invention relates to a method for continuous pyrolysis and gasification of materials. Background technique [0002] Traditional heating methods use radiation, convection, and conduction to heat from the surface to the inside. In order to avoid excessive temperature gradients, the heating speed is often not too fast, and the components of the material cannot be selectively heated. Because microwaves can directly penetrate into the material, compared with traditional heating methods, microwave heating can achieve balanced heating inside and outside the material, which has the advantages of fast heating rate and high energy utilization efficiency, and microwave can treat components with different dielectric properties in the material. Selective heating is performed. Therefore, the particularity of microwave heating makes pyrolysis products have greater advantages compared with traditional gasification technology, and it is a promising material heatin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/60C10J3/72
Inventor 王鑫张彪张庆军蔡海乐张长安刘继华乔凯
Owner SINOPEC DALIAN RES INST OF PETROLEUM & PETROCHEMICALS CO LTD
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