Method for co-preparation of bamboo activated carbon, bamboo vinegar and bamboo tar

A technology of bamboo tar and bamboo vinegar, which is applied in chemical instruments and methods, coking ovens, petroleum industry, etc., can solve the problems of unsatisfactory quality of vinegar and bamboo tar, and achieve large processing capacity, high recovery efficiency and less pollution Effect

Active Publication Date: 2017-12-01
浙江富来森能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, adopt the bamboo vinegar liquid, bamboo tar that conventional recovery mode reclaims, the vinegar liquid that obtains, bamboo tar quality are not ideal

Method used

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  • Method for co-preparation of bamboo activated carbon, bamboo vinegar and bamboo tar
  • Method for co-preparation of bamboo activated carbon, bamboo vinegar and bamboo tar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Use a pulverizer to pulverize hemp bamboo to pass through a 50-mesh sieve, blow into dry air with a pressure of 0.1KPa at 100°C, and dry for 60 minutes to obtain dried bamboo powder;

[0029] (2) Pass the bamboo powder through a three-stage conical screw extruder, and then pass through the carbonization section, dry distillation section and activation section of the three-stage conical screw extruder in sequence. The carbonization section is equipped with a five-stage pressure pump, and the dry distillation section is provided with three temperature zones from the feed end to the discharge end. From the first temperature zone to the third temperature zone, the carbonization temperature increases from 200°C to 400°C. The temperature gradient between two adjacent temperature zones is 100°C, a vacuum port is set in each of the three temperature zones, and a water condensation device is set at the outlet of the at least one vacuum port; in the activation section, a The ...

Embodiment 2

[0034] (1) Use a pulverizer to crush the mixture of green bamboo, thorny bamboo, long-branched bamboo, and Penglai bamboo until it passes through a 50-mesh sieve, blow into dry air with a pressure of 0.2KPa at 105°C, and dry for 120 minutes to obtain dried bamboo powder;

[0035](2) Pass the bamboo powder through a three-stage conical screw extruder, and then pass through the carbonization section, dry distillation section and activation section of the three-stage conical screw extruder in sequence. The carbonization section is equipped with a three-stage pressure pump, and the carbonization section is provided with five temperature zones from the feed end to the discharge end. From the first temperature zone to the fifth temperature zone, the carbonization temperature is increased from 200°C to 400°C. The temperature gradient of two adjacent temperature zones is 40°C, at least one vacuum port is set in each of the five temperature zones, and a water condensation device is set...

Embodiment 3

[0040] (1) Use a pulverizer to crush the thorny bamboo to pass through a 50-mesh sieve, blow into dry air with a pressure of 0.5KPa at 100°C, and dry for 70 minutes to obtain dried bamboo powder;

[0041] (2) Pass the bamboo powder through a three-stage conical screw extruder, and then pass through the carbonization section, dry distillation section and activation section of the three-stage conical screw extruder in sequence. The carbonization section is equipped with a three-stage pressure pump, and the dry distillation section is provided with four temperature zones from the feed end to the discharge end. From the first temperature zone to the fourth temperature zone, the carbonization temperature increases from 200°C to 400°C. The temperature gradient of two adjacent temperature zones is 50°C, at least one vacuum port is set in each of the four temperature zones, and a water condensation device is set at the outlet of the at least one vacuum port; Section, set the gas deliv...

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Abstract

The invention provides a method for co-preparation of bamboo activated carbon, bamboo vinegar and bamboo tar. The method for co-preparation of the bamboo activated carbon, the bamboo vinegar and the bamboo tar takes bamboo wood as raw materials, and through multi-stage machining of a three-stage conical screw extruder, achieves graded recovery of by products of the bamboo vinegar and the bamboo tar and overcomes the technical defect in the prior art that, due to difference in technical conditions, collecting methods and processing methods, obtained bamboo vinegar and bamboo tar are large in quality discrepancy and incapable of achieving effective separation and purification. Therefore, the method for co-preparation of the bamboo activated carbon, the bamboo vinegar and the bamboo tar achieves graded recovery of the by-products of the bamboo vinegar and the bamboo tar, obtains the bamboo vinegar and the bamboo tar of different grades and greatly improves the value added of the by-products of bamboo activated carbon production.

Description

technical field [0001] The invention relates to the field of industrial continuous material processing, in particular to a method for jointly producing bamboo activated carbon, bamboo vinegar and bamboo tar. Background technique [0002] As activated carbon is widely used in environmental protection, chemical industry, food, medicine, water treatment and other fields. The performance of activated carbon using coal as raw material is limited, and it can no longer meet the growing demand for activated carbon in different fields. Therefore, bamboo activated carbon with excellent performance is produced and applied in large quantities. However, due to the backward technology, a large amount of volatiles produced after bamboo pyrolysis in the production process of bamboo activated carbon have not been effectively recycled, which not only caused a huge waste of energy, but also caused environmental pollution. Studies have shown that during the pyrolysis and carbonization process...

Claims

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Application Information

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IPC IPC(8): C01B32/336C01B32/318C01B32/39C10C5/00C10B53/02
CPCC01P2006/16C10B53/02C10C5/00Y02E50/10
Inventor 陈庆曾军堂
Owner 浙江富来森能源科技有限公司
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