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A new method for comprehensive utilization of waste materials from rubber tree processing boards

A technology for rubber trees and waste materials is applied in the new field of comprehensive utilization of waste materials of rubber tree processing boards, which can solve the problems of reducing the calorific value of bio-oil, high water content of bio-oil, and reducing economic value, so as to improve the calorific value and protect the environment. , the effect of reducing production energy consumption

Active Publication Date: 2011-11-30
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above patents have achieved good test results for the entire biomass liquefaction work, but there is a high water content in the bio-oil obtained without drying the biomass, which reduces the calorific value of the bio-oil; there is no comprehensive utilization of solid phase components, resulting in The cost of bio-oil is too high and the economic value is reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: The waste material is crushed to a particle size of less than 10 mm, sent into a fluidized bed dryer with a screw feeder, mixed with gas at a temperature of 250 ° C and exchanged for heat exchange, and the biomass is dehydrated to a moisture content of 4%, and is drawn out of the drying tower through 2 The dry biomass obtained after secondary cyclone separation is sent to the pellet molding machine through a screw feeder to obtain pellet fuel with a calorific value of 17.54MJ / kg.

Embodiment 2

[0024] Example 2: The waste material is crushed to a particle size of less than 10 mm, sent into a fluidized bed dryer with a screw feeder, mixed with a gas at a temperature of 300 ° C and exchanged for heat exchange, and the biomass is dehydrated to a moisture content of 2%, and is drawn out of the drying tower through 2 The dry biomass obtained after secondary cyclone separation is sent to the pellet molding machine through a screw feeder to obtain pellet fuel with a calorific value of 18.80MJ / kg.

Embodiment 3

[0025] Example 3: The waste material is crushed to a particle size of less than 10 mm, sent into a fluidized bed dryer with a screw feeder, mixed with gas at a temperature of 300 ° C and exchanged for heat exchange, and the biomass is dehydrated until the moisture is less than 5%, and is drawn out of the drying tower through 2 The dry biomass obtained after secondary cyclone separation is sent to a mixer through a screw feeder, uniformly mixed with 2wt% biomass oil, and then sent to a pellet forming machine to obtain a pellet fuel with a calorific value of 19.00 MJ / kg.

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Abstract

The invention relates to a novel method for comprehensively utilizing waste materials of rubber tree processing sheets. The method specifically comprises the following steps of: (1) crushing the waste materials, drying, and performing extrusion molding to produce biomass pellet fuel; (2) pyrolyzing the dried waste materials at the temperature of between 420 and 550 DEG C to produce biomass oil and solid carbon; and (3) activating the solid carbon by water vapor to produce activated carbon. The advancement of the method is that: (1) the composition of solid, liquid and gas phases of a product is controlled by controlling pyrolysis temperature, gas obtained after gas phase combustion reaches the temperature required by the pyrolysis and is used for biomass drying and pyrolysis after being regulated and controlled, and energy sources are not required to be added additionally; (2) the condensing temperature is improved, the biomass oil is upgraded in situ, and the calorific value is 28 to30MJ / kg; (3) the biomass oil is added into raw materials which are then processed into particles, so that the calorific value and the production capacity of equipment are improved, and the energy consumption is reduced; and (4) the biomass oil is taken as the energy source for producing the activated carbon, so that the fossil energy is saved, the discharge of harmful gas is reduced, and the environment is protected.

Description

technical field [0001] The invention relates to a new method for comprehensive utilization of waste materials from rubber tree processing boards (hereinafter referred to as "waste materials"), in particular to a new method for using waste materials to produce granular fuel, solid carbon, activated carbon and comprehensive utilization. Background technique [0002] Since the energy crisis in the 1970s, people have made various estimates and speculations on the reserves and mining time limits of oil, coal, and natural gas. According to the current technical level and mining volume, coal can be mined for 120 years, and natural gas can be mined for 60 years. Oil can only be exploited for 40 years, and some fossil fuels will be exhausted in the 21st century, and mankind is facing a crisis of energy depletion. At the same time, due to the extensive use of fossil fuels, a large amount of dust, CO 2 , SO 2 and NO x Hazardous substances such as carbon dioxide and other harmful sub...

Claims

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Application Information

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IPC IPC(8): C10B53/02C10B49/02C10B57/10C10L5/44C01B31/10B09B3/00C01B32/336
CPCY02E50/30Y02E50/14Y02E50/10Y02W30/78
Inventor 王晓峰金尧王子忱朱燕超郭玉鹏丁雪峰
Owner JILIN UNIV
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