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Device and method for intensifying tar cracking in biomass gasification pyrolysis process

A tar cracking and biomass technology is applied in the field of devices for strengthening tar cracking in the process of biomass gasification and pyrolysis. rate and quality, the effect of high-strength cracking

Inactive Publication Date: 2015-09-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thermal cracking requires a temperature of 1200°C or higher, which increases operating costs. From the perspective of balancing energy utilization, catalytic cracking requires a lower temperature, but there are problems such as easy carbon deposition, wear, and deactivation of the catalyst.

Method used

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  • Device and method for intensifying tar cracking in biomass gasification pyrolysis process
  • Device and method for intensifying tar cracking in biomass gasification pyrolysis process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 , 2 As shown, a simulation device for strengthening tar cracking in the process of biomass gasification and pyrolysis is composed of gas cylinder 1, laboratory push-pull injection pump 3, XYE digital display constant temperature electric heating mantle 4, Galanz household microwave oven 5, and quartz reactor 6 Connected in sequence through silicone tubes, glass rotameter 2 is set between gas cylinder 1 and XYE digital display constant temperature electric heating mantle 1, laboratory push-pull injection pump 3 is connected to XYE digital display constant temperature electric heating mantle 4 through silicone tube, quartz reactor 6 Placed in the Galanz household microwave oven 5, the position of the inlet pipe of the quartz reactor 6 is higher than the outlet pipe, and the outlet pipe of the quartz reactor 6 is connected with the Fourier infrared spectrometer 8 and the Clarus500GC gas chromatograph 9 through the three-way valve 7. Cut round glass wool w...

Embodiment 2

[0036] In the biomass pyrolysis gasification gas simulation system, toluene was used as the modeled tar product, and N 2 as carrier gas, N 2 The flow rate is 1000ml / min, the input amount of toluene is 1ml / min, and the heating evaporation temperature of toluene is 200°C. In the microwave field metal discharge reaction area, a microwave field environment with a fixed power of 700W is set, and the number of strips (for example, 8 metal materials) Ni with a stronger discharge degree is placed in the microwave field to generate a microwave metal discharge reaction. Let the toluene vapor of the tar mold compound pass through the metal discharge area created, and the cracked product is collected and detected by GC to obtain that the main component of the product is H 2 and N 2 , where H 2 About 4%.

Embodiment 3

[0038] In the biomass pyrolysis gasification gas simulation system, toluene was used as the modeled tar product, and N 2 as carrier gas, N 2 The flow rate is 1000ml / min, the input amount of toluene is 1ml / min, and the heating evaporation temperature of toluene is 200°C. In the microwave field metal discharge reaction area, a microwave field environment with a fixed power of 700W is set, and Ni of the number of strips with a weaker discharge degree (for example, 3 metal materials) is placed in the microwave field to generate a microwave metal discharge reaction. Let the toluene vapor of the tar mold compound pass through the metal discharge area created, and the cracked product is collected and detected by GC to obtain that the main component of the product is H 2 and N 2 , where H 2 About 1.2%.

[0039] In the case of ensuring that other experimental conditions are exactly the same, use the same type of metal strips and only change the number of metal strips for the experi...

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Abstract

The invention discloses a device and a method for intensifying tar cracking in biomass gasification pyrolysis process. The device consists of a microwave generation device and a triggering discharge device, wherein microwaves generated from the microwave generation device are input into the triggering discharge device through waveguide; the triggering discharge device is internally provided with metal mediums Fe, Ni, Co or other alloys; the triggering discharge device is arranged in an area at the temperature of 200-800 DEG C on a biomass gasification pyrolysis device. The method is convenient to implement, a biomass gasification pyrolysis process does not need to be greatly adjusted or changed, no high temperature area is needed, and only a metal discharge area needs to be arranged. No catalyst is needed, so that the problem of catalyst deactivation can be avoided. Due to high-efficiency conversion of tar, problems of equipment blocking or corrosion caused by tar can be reduced or eliminated, the yield of a biomass gas can be increased, the quality of the biomass gas can be improved, and thus the energy utilization efficiency can be improved.

Description

technical field [0001] The invention relates to a new method for strengthening the removal of tar in the process of pyrolysis and gasification of biomass by utilizing the discharge phenomenon generated by the interaction between microwave and metal, in particular to a device and device for strengthening tar cracking in the process of pyrolysis of biomass gasification and pyrolysis method. Background technique [0002] (production of tar) [0003] With the increasing demand for social energy, fossil fuels, which are the main source of energy, are rapidly decreasing. Therefore, the development and utilization of sustainable and environmentally friendly alternative energy has become a major global issue. Biomass energy is a relatively stable energy source. Renewable energy has increasingly become the focus of attention of countries all over the world. Biomass energy utilization technology includes three main ways of direct combustion, gasification and liquefaction, among whic...

Claims

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Application Information

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IPC IPC(8): C10B53/02C10B57/00C10B57/18C01B3/22C01B3/32C01B3/34C01B3/24
CPCY02E50/10Y02P20/10
Inventor 王文龙周玉立孙静宋占龙赵希强毛岩鹏冯玉坤马晓玲
Owner SHANDONG UNIV
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