Process of preparing high-quality biomass charcoal for carbon-based fertilizer and co-producing wood vinegar

A technology of biomass charcoal and wood vinegar, applied in the direction of biofuel, fertilizer mixture, application, etc., can solve the problems of large pores and low yield of biochar, achieve long-lasting fertilizer effect, avoid pollution, and have good slow-release effect Effect

Active Publication Date: 2018-01-05
BEIJING SANJU GREEN ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of low biochar yield and too large pores for carbon-based fertilizers in the prior art, and then provide a preparation process for high-quality biochars for carbon-based fertilizers, and at the same time maximize Utilize biomass resources to avoid energy waste

Method used

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  • Process of preparing high-quality biomass charcoal for carbon-based fertilizer and co-producing wood vinegar
  • Process of preparing high-quality biomass charcoal for carbon-based fertilizer and co-producing wood vinegar
  • Process of preparing high-quality biomass charcoal for carbon-based fertilizer and co-producing wood vinegar

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Effect test

Embodiment 1

[0034] The technique that utilizes bagasse to prepare high-quality biomass charcoal co-production of wood vinegar for charcoal-based fertilizer provided by the present embodiment comprises the following steps:

[0035] (1) The bagasse was pulverized and carbonized under anaerobic conditions at a carbonization temperature of 450° C. for 88 minutes to obtain a carbonized product.

[0036] (2) The obtained carbonization product is subjected to sedimentation treatment to obtain biochar and biomass gas, and the obtained biochar is subjected to primary cooling, pulverization and secondary cooling in sequence, the cooling method is water cooling, and the biomass gas is cooled by cyclone separation technology. Dedusting is carried out, and the solid particles obtained from dedusting are incorporated into the cooled biochar.

[0037] (3) Collect the biomass gas obtained in step (2), use water as the initial spray agent, and perform primary spray and secondary spray successively to obta...

Embodiment 2

[0046] The technique that utilizes corn cob and bagasse 1:1 mixture to prepare charcoal-based fertilizer that the present embodiment provides high-quality biomass charcoal co-production wood vinegar comprises the following steps:

[0047] (1) After pulverizing the mixed biomass raw material, carbonize it under the condition of anaerobic nitrogen flow, the carbonization temperature is 600° C., and carbonize for 80 minutes to obtain the carbonized product.

[0048] (2) The obtained carbonization product is subjected to sedimentation treatment to obtain biochar and biomass gas, and the obtained biochar is subjected to primary cooling, pulverization and secondary cooling in sequence, the cooling method is water cooling, and the biomass gas is cooled by cyclone separation technology. Dedusting is carried out, and the solid particles obtained from dedusting are incorporated into the cooled biochar.

[0049] (3) Collect the biomass gas obtained in step (2), use water as the initial s...

Embodiment 3

[0058] The technology that the mixture of corncob and bagasse 1:1 provided by the present embodiment is used to prepare high-quality biomass charcoal co-production of wood vinegar for carbon-based fertilizer comprises the following steps:

[0059] (1) The biomass raw material was pulverized, compressed, granulated, and carbonized under the condition of anaerobic nitrogen flow, the carbonization temperature was 480° C., and the carbonization was carried out for 75 minutes to obtain a carbonized product.

[0060] (2) The obtained carbonization product is subjected to sedimentation treatment to obtain biochar and biomass gas, and the obtained biochar is subjected to primary cooling, pulverization and secondary cooling in sequence, the cooling method is water cooling, and the biomass gas is cooled by cyclone separation technology. Dedusting is carried out, and the solid particles obtained from dedusting are incorporated into the cooled biochar.

[0061] (3) Collect the biomass gas...

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Abstract

The invention relates to the technical field of biomass utilization, and particularly provides a process of preparing high-quality biomass charcoal for carbon-based fertilizer and co-producing wood vinegar. Multi-pore high-quality biomass charcoal and wood vinegar are obtained by adopting a low and medium-temperature cracking mode. Under an anoxic condition, a biomass raw material is carbonized, so that organic carbon in biomass is retained to the maximum extent; the wood vinegar is operated through phase separation of spraying liquid, so that energy waste and flue gas pollution which are caused by combustion are avoided; the low-concentration wood vinegar is further cyclically used as a spraying agent at the same level for recycling, so that effective components in the wood vinegar can beaccumulated. As the obtained wood vinegar is sprayed to the biomass charcoal, the sterilization and parasite expelling effects of the biomass charcoal can be enhanced, and the biomass charcoal is also entitled with nutritional components.

Description

technical field [0001] The invention belongs to the field of biomass utilization, and in particular relates to a process for preparing high-quality biomass charcoal and co-producing wood vinegar for carbon-based fertilizer. Background technique [0002] Due to the quick effect of inorganic fertilizers and the easy control of nutrient components, most of the farmlands use inorganic fertilizers to supplement the nutrients of crops. However, the long-term application of inorganic fertilizers will cause problems such as soil compaction and soil salinization, which is not conducive to the sustainable development of agriculture. Organic fertilizers retain water and moisture, and can also improve soil quality, but are not widely used in my country's agriculture because of their slow effect and high storage and transportation costs. For example, although the stalks of wheat, corn and other crops can be directly returned to the field as organic fertilizers, since it takes a long tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/02C10B57/00C10C5/00C10K1/02C10K1/10C05D9/00C05G3/00C05G3/02C05G3/04C05G3/60C05G3/80
CPCC05D9/00C05G3/80C10B53/00C10B53/02C10B57/00C10B57/02C10B57/10C10C5/00C10K1/00C10K1/02C10K1/06C10K1/08C10K1/101Y02E50/10Y02P20/145
Inventor 田然张少明李泓付兴国李超李洁静
Owner BEIJING SANJU GREEN ENERGY TECH CO LTD
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