Biomass fuel produced by using potato starch residue and wastewater and production method for biomass fuel

A potato starch residue, biomass energy technology, applied in waste fuel, fuel, gas fuel and other directions, can solve the problems affecting the sustainable development of the potato industry, waste of resources, environmental pollution, etc., to achieve accelerated fermentation speed, large gas production, The effect of high survival rate

Inactive Publication Date: 2012-09-26
常华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Potato starch dregs and waste water are wastes produced during the production of potato starch. For every ton of potato starch produced, about 15 tons of starch dregs and waste water can be produced. However, potato starch processing enterprises have no effective treatment and utilization measures for potato starch dregs and waste water. The disorderly discharge not only wastes resources, but also causes serious environmental pollution, which affects the sustainable development of the potato industry.

Method used

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  • Biomass fuel produced by using potato starch residue and wastewater and production method for biomass fuel
  • Biomass fuel produced by using potato starch residue and wastewater and production method for biomass fuel
  • Biomass fuel produced by using potato starch residue and wastewater and production method for biomass fuel

Examples

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Effect test

Embodiment 1

[0040] Embodiment 1, utilize potato starch slag, the biomass fuel of waste water production, earlier potato slag, inoculum are allotted with described potato waste water and be 5% concentration in solid content, then it is mixed by 1:1, then by screw The pump is pumped into the reactor for anaerobic fermentation, and the fermentation temperature is maintained at 30 °C to produce biogas under the action of methanogenic bacteria. The biogas is desulfurized, decarbonized, purified, compressed, and stored in a gas storage tank. High-level calorific value of the product > 31.4MJ / m3, total sulfur (calculated as sulfur) ≤ 200mg / m3, hydrogen sulfide ≤ 15mg / m3, carbon dioxide ≤ 3.0%, oxygen ≤ 0.5%, meeting the "GB18047-2000 Compressed Natural Gas for Vehicles" standard , mainly used as vehicle gas (CNG), and can also be used as energy for household life.

Embodiment 2

[0041] Example 2, using potato starch slag and waste water to produce biomass fuel, the potato slag and inoculum were first prepared with the waste water to a concentration of 10%, then mixed at 1:1, and then pumped into the reactor by a screw pump Carry out anaerobic fermentation, keep the fermentation temperature at 35°C, and produce biogas under the action of methanogenic bacteria. The biogas is desulfurized, decarbonized, purified, compressed, and stored in a gas storage tank. High-level calorific value of the product > 31.4MJ / m3, total sulfur (calculated as sulfur) ≤ 200mg / m3, hydrogen sulfide ≤ 15mg / m3, carbon dioxide ≤ 3.0%, oxygen ≤ 0.5%, meeting the "GB18047-2000 Compressed Natural Gas for Vehicles" standard , mainly used as vehicle gas (CNG), and can also be used as energy for household life.

Embodiment 3

[0042] Example 3, using potato starch slag and waste water to produce biomass fuel, the potato slag and inoculum were prepared with the waste water to a concentration of 10%, then mixed at 1:1, and then pumped into the reactor by a screw pump Carry out anaerobic fermentation, keep the fermentation temperature at 56°C, and produce biogas under the action of methanogenic bacteria. The biogas is desulfurized, decarbonized, purified, compressed, and stored in a gas storage tank. High-level calorific value of the product > 31.4MJ / m3, total sulfur (calculated as sulfur) ≤ 200mg / m3, hydrogen sulfide ≤ 15mg / m3, carbon dioxide ≤ 3.0%, oxygen ≤ 0.5%, meeting the "GB18047-2000 Compressed Natural Gas for Vehicles" standard , mainly used as vehicle gas (CNG), and can also be used as energy for household life.

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Abstract

The invention discloses a biomass fuel produced by using potato starch residue and wastewater and a production method for the biomass fuel. The biomass fuel is prepared from 50 to 70 percent of potato starch residue and wastewater and 50 to 30 percent of inoculum, wherein the solid content in the potato starch residue and wastewater is 50 to 95 percent. The production method for the biomass fuel comprises the following steps: accurately measuring the solid content of the potato starch residue and the inoculum; performing filter pressing on the potato starch residue and the inoculum or diluting the potato starch residue and the inoculums by using potato wastewater according to the actually measured solid content and a formula requirement, mixing, pumping into a reactor for anaerobic fermentation, and producing biogas under the action of the inoculum at the pH value of 6.5-7 and the temperature of between 30 and 56 DEG C; and performing desulfurization, decarbonization purification and compression on the biogas to obtain the biomass fuel. The fuel meets the standard of GB18047-2000 Compressed Natural Gas as Vehicle Fuel, can serve as clean energy to be safely used, and can serve as compressed natural gas (CNG) as the vehicle fuel to replace gasoline or can be used in a household to replace liquefied petroleum gas.

Description

technical field [0001] The invention relates to a kind of biomass energy fuel, specifically, it uses potato starch slag and waste water as raw materials, produces biogas through anaerobic fermentation, then desulfurizes, decarbonizes and purifies the biogas, and compresses and produces it in accordance with "GB18047-2000 Compression for vehicles" Natural gas" standard biomass fuel, can be used for vehicle gas to replace gasoline, and can also be used as household fuel to replace liquefied petroleum gas. Background technique [0002] Potato starch dregs and waste water are wastes produced during the production of potato starch. For every ton of potato starch produced, about 15 tons of starch dregs and waste water can be produced. However, potato starch processing enterprises have no effective treatment and utilization measures for potato starch dregs and waste water. The disorderly discharge not only wastes resources, but also causes serious environmental pollution, which aff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C10L3/08
CPCY02E50/343Y02E50/30
Inventor 常华马宝成张春定
Owner 常华
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