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Potato pulp-straw jointly-mixed bio-fuel and preparation method thereof

A potato residue and biofuel technology, applied in biofuel, waste fuel, fuel, etc., can solve the problems of moisture content limitation, unfavorable high-pressure forming, etc., and achieve the effects of low cost, simple and safe preparation process, and convenient civil and industrial production

Inactive Publication Date: 2012-03-21
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cold press molding has strict restrictions on the moisture content of raw materials. Due to the high water content of potato residues, it is not conducive to high-pressure molding, so this technology has not been applied in the research of biomass energy of potato residues so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] [Example 1] Preparation process of potato residue-straw blended biofuel

[0015] (1) Straw crushing

[0016] Straw with a moisture content of less than 14% is selected and pulverized by a pulverizer to 10-30 meshes for later use. The stalks blended with the potato residues involved in the present invention can be the stalks of one kind of crops, and also can be the stalks of multiple crops.

[0017] (3) Mixing

[0018] After the fresh potato residues were dehydrated initially, they were mixed with straw, KNO 3 and Al 2 o 3 mix. Dehydrated Potato Residue, Straw, KNO 3 and Al 2 o 3 The mixing ratio is 1:5~12:0.05~0.12:0.05~0.15; old and air-dried potato residues and straw, KNO 3 and Al 2 o 3 Mixing, the specific ratio is 1:2-12:0.05-0.12:0.03-0.15.

[0019] Cold press solidification molding

[0020] The mixture described in (3) is cold-pressed into a self-made molding mold, the molding pressure is 30-50KN, and the shape retention time is 10-20S.

[0021] (4)...

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PUM

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Abstract

The invention aims at providing solid bio-fuel with potato pulp and straws as main raw materials and matched with appropriate addition agent and a preparation method thereof. The preparation processes include straws mashing, material mixing, cold-pressing solidification forming and later-stage drying process. Under the condition that no liquid combustion improver is added, the duration of ignition of the bio-fuel is 6-8 minutes, and heat value reaches to 4000-4700 kilocalories. Compared with the existing potato pulp resource utilization technology, the preparation method of the bio-fuel has the advantages of being low in cost, simple and safe in the preparation processes, capable of achieving conversion and utilization of the potato pulp in a short time, promoting energy saving and efficiency improvement of potato starch factories, effectively protecting ecological environment, facilitating civil use and industrialization production and the like.

Description

technical field [0001] The invention relates to a solid biofuel with potato residue and straw as main raw materials and a preparation method thereof. Background technique [0002] Potato residue is the waste residue produced during the potato starch extraction process, mainly containing water, cell debris and residual starch granules. The water content of fresh potato dregs is as high as about 90%, but because the water is combined with macromolecular substances, it shows the physical and chemical characteristics of typical colloids and does not have the properties of liquid fluid. Statistics from the China Starch Industry Association show that the annual discharge of potato residues worldwide is more than 120 million tons, of which the annual discharge of potato residues in my country is about 10 million tons. Due to the shortcomings of the current treatment methods, discharging potato residues into farmland is still the most important method used by potato starch companie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44
CPCY02E50/10Y02E50/30
Inventor 王拓一
Owner QIQIHAR UNIVERSITY
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