Method for simultaneously preparing charcoal, gas and liquid products from crop straw and application thereof

A technology of crop straw and products, which is applied in the manufacture of biofuels, pyroligneous acid, and special forms of dry distillation, etc., can solve problems such as poor economic benefits, and achieve the effects of improving soil physical and chemical properties, improving soil fertility, and increasing water content

Inactive Publication Date: 2008-05-28
杭州南林能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods only use gas or charcoal for the use of crop stalks, etc., and the economic benefits are not good...

Method used

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  • Method for simultaneously preparing charcoal, gas and liquid products from crop straw and application thereof
  • Method for simultaneously preparing charcoal, gas and liquid products from crop straw and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The rice straw is crushed into 1~3cm according to the mass ratio of 2:1 (the ratio can be adjusted according to the needs) and mixed with the rice husk to obtain the mixed straw raw material, which is sent to the gasifier to supply oxygen in a limited amount, so that the straw is gasified to form a large amount of combustible The gas can be used to drive the gas turbine to generate electricity or supply gas. It can supply 600kg of mixed straw raw materials per hour, which can generate 300-500kw of electricity. Due to the limited amount of oxygen supply, it is 5000-12000m 3 / h, the combustion is not complete, a large amount of straw charcoal is formed when the straw is gasified, and 200-300kg of straw charcoal is produced per hour (the carbon content can reach 30-50%). It is rich in nitrogen, phosphorus, potassium and other nutrients necessary for crop growth. It can be made into organic compound fertilizer, which can effectively improve soil fertility. It has a long-term...

Embodiment 2

[0016] The straw is crushed into 1-3cm raw materials and sent to the gasifier, and a limited amount of oxygen is supplied to gasify the straw to form a large amount of flammable gas, which drives the gas turbine to generate electricity, and supplies 500-600kg of straw raw materials per hour, which can generate electricity of 300~ 500kw, due to the limited amount of oxygen supply, it is 5000~12000m 3 / h, the combustion is not complete, and a large amount of straw charcoal is formed when the straw is gasified, producing 220-320kg straw charcoal (the carbon content can reach 35-55%). It is rich in nitrogen, phosphorus, potassium and other nutrients necessary for crop growth. It can be made into organic compound fertilizer, which can effectively improve soil fertility. It has a long-term slow-release effect on water and fertilizer. Long-term application can improve soil physical and chemical properties, increase The water content and air permeability of the soil can improve and re...

Embodiment 3

[0019] Crumble the corn stalks into 1-3cm straw raw materials and feed them into the gasifier, and supply oxygen in a limited amount to gasify the straws to form a large amount of flammable gas, which drives the gas turbine to generate electricity, and supplies 550-600kg of mixed straw raw materials per hour. It can generate 300~500kw of electricity, and because it is a limited amount of oxygen supply, it is 5000~12000m 3 / h, the combustion is not complete, a large amount of straw charcoal is formed when the straw is gasified, and 210-310kg of straw charcoal is produced per hour (the carbon content can reach 30-50%). It is rich in nitrogen, phosphorus, potassium and other nutrients necessary for crop growth. It can be made into organic compound fertilizer, which can effectively improve soil fertility. It has a long-term slow-release effect on water and fertilizer. Long-term application can improve soil physical and chemical properties, increase The water content and air permea...

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PUM

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Abstract

The invention relates to a process for simultaneously preparing charcoal, gas, and liquid products with crop stalks and the application thereof. The process is that the crop stalks (rice husk, nut shell, branches of fruit trees, wooden and bamboo waste materials, and the like) are conveyed to a gasification furnace, the gasification furnace is provided with oxygen by the employment of controlling the height of the a batch layer and the air quantity of an air extractor, and the air achieved via gas-liquid separation is conveyed into a gas turbine for generating or directly supplied to users, vinegar fluid is achieved by condensing and reclaiming the liquid, the vinegar fluid can be processed to be antiseptic solution and deodorizer which are used in livestock places, and also can be processed to be pesticide agent or pesticide which can resist insect and disease, further can be used for foliage fertilizer which can promote the growth of crops and has perfect effect in the production of organic vegetable, fruits and agronomic crops. Straw charcoal achieved from imperfect burnt straws is rich in essential nutrients for the growth of crops, which has a long term slow releasing action for water and fertilizer, has improvement and renovation effect for the soil which is polluted and degenerated by heavy metal, and can be processed to be organic compound fertilizer or insulating material of iron and steel industry and the like.

Description

technical field [0001] The patent of the present invention relates to a method and application for simultaneously producing charcoal, gas and liquid products from crop straws (various straws, rice husks, fruit shells, fruit tree branches, wood and bamboo waste materials, etc.). Background technique [0002] At present, known pyrolysis utilization technologies such as crop straws include gasification to produce combustible gas for power generation or gas supply, dry distillation pyrolysis, or earth kiln to directly pyrolyze crop straws into charcoal. These methods only use gas or charcoal for the utilization of crop stalks, etc., and the economic benefits are not good, and they need to rely on economic or policy subsidies from the state and local governments to maintain their operation. Contents of the invention [0003] The purpose of the present invention is to comprehensively and efficiently utilize crop stalks, rice husks, fruit shells, fruit tree branches, wood and bam...

Claims

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Application Information

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IPC IPC(8): C10B53/02C10C5/00C05F11/00
CPCY02E50/14Y02E50/10
Inventor 张齐生周建斌伊松林宋保其
Owner 杭州南林能源科技有限公司
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