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Functional liquid fertilizer prepared by catalyzing agricultural waste biomass

A technology of agricultural waste and biomass, applied in the field of catalytic hydrothermal carbonization of agricultural waste biomass to prepare functional liquid organic fertilizer, can solve the problems of not fully utilizing the value of straw and less effective utilization, and achieve obvious prevention of root rot , simple process and high calorific value

Inactive Publication Date: 2017-04-26
青岛漾花湖农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the phenomenon of direct burning of straw in the field is relatively common, and it is rarely used effectively, and the utilization value of straw has not been fully utilized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Crush corn stalks to 12 to 16 mesh, take 20kg and mix it with 100L of water to obtain a biomass aqueous solution, inject it into a 500L high-pressure reactor with an automatic feed pump, close the feed port, and purify the air in the reactor with nitrogen Replace 3 times. Then, turn on the heater of the reactor, set the reaction temperature to 225° C., and the stirring speed to 200 rpm. After heating up to 225°C, keep the temperature constant for 3 hours. After the reaction is terminated, the air outlet is opened, and after the air pressure in the reactor is consistent with the atmosphere, the outlet is opened to cool the reaction materials to normal temperature. Take out the solid coke produced by the reaction and the mixed liquid rich in stable components such as phenols, filter and separate with a solid-liquid separator, and dry and compact the solid to become biofuel. The mixed liquid obtained by filtering can be used as a configuration function Mother liquor of p...

Embodiment 2

[0024] Crush corn stalks to 12 to 16 mesh, take 20kg and mix it with 100L of water to obtain a biomass aqueous solution, inject it into a 500L high-pressure reactor with an automatic feed pump, close the feed port, and purify the air in the reactor with nitrogen Replace 3 times. Then, turn on the heater of the reactor, set the reaction temperature to 250° C., and the stirring speed to 600 rpm. After heating up to 250°C, keep the temperature constant for 2 hours. After the reaction is terminated, the air outlet is opened, and after the air pressure in the reactor is consistent with the atmosphere, the outlet is opened to cool the reaction materials to normal temperature. Take out the solid coke produced by the reaction and the mixed liquid rich in stable components such as phenols, filter and separate with a solid-liquid separator, and dry and compact the solid to become biofuel. The mixed liquid obtained by filtering can be used as a configuration function Mother liquor of p...

Embodiment 3

[0026] Crush the rice straw to 12 to 16 mesh, take 20kg and mix it with 100L of water to obtain a biomass aqueous solution, inject it into a 500L high-pressure reactor with an automatic feeding pump, close the feeding port, and purify the air in the reactor with nitrogen Replace 3 times. Then, turn on the heater of the reactor, set the reaction temperature to 225° C., and the stirring speed to 200 rpm. After heating up to 225°C, keep the temperature constant for 3 hours. After the reaction is terminated, the air outlet is opened, and after the air pressure in the reactor is consistent with the atmosphere, the outlet is opened to cool the reaction materials to normal temperature. Take out the solid coke produced by the reaction and the mixed liquid rich in stable components such as phenols, filter and separate with a solid-liquid separator, and dry and compact the solid to become biofuel. The mixed liquid obtained by filtering can be used as a configuration function Mother li...

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PUM

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Abstract

The invention discloses a functional liquid fertilizer prepared through catalytic hydrothermal carbonization of agricultural waste biomass. The functional liquid fertilizer is characterized in that the functional liquid fertilizer is prepared by taking a mixed solution produced after catalytic hydrothermal carbonization of the agricultural waste biomass as a mother solution and adding nitrogen, phosphorus, potassium, humic acid and the like. The preparation process comprises steps of (1) material crushing, (2) reaction condition control, (3) preparation of the mother solution of the fertilizer and (4) preparation of the fertilizer. The functional liquid fertilizer preparation process is simple, energy consumption is low, and the reaction conditions are mild. The fertilizer has a remarkable prevention effect on root rot of crops.

Description

Technical field [0001] The invention relates to the technical field of biomass resource utilization, and specifically relates to a functional liquid organic fertilizer prepared by catalytic hydrothermal carbonization of agricultural waste biomass. Background technique [0002] my country is rich in agricultural waste biomass resources, mainly including wheat, rice, corn and other types of straw. At present, the phenomenon of direct burning of straw in fields is relatively common, and less of it is effectively utilized, and the utilization value of straw is not fully utilized. Direct incineration of straw can easily cause air pollution, while catalytic hydrothermal carbonization of straw not only has little impact on the environment, but can also fully exploit the economic value of straw. [0003] Catalytic hydrothermal carbonization is a gentle process in which biomass and water are mixed into a reactor in a certain ratio and carried out at a certain temperature (180~350°C,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C10L5/44
CPCC05B7/00C10L5/447C05G5/23C05B17/00C05C5/04C05C11/00C05D1/00C05F5/008C05F11/00Y02E50/10Y02E50/30
Inventor 郭燕锋王磊孙玉红
Owner 青岛漾花湖农业科技有限公司
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