Method for producing methyl hydride and electricity with solar energy

A solar energy and solar greenhouse technology, applied in the energy field, can solve the problems of complex solar energy plant conversion and plant utilization system, consume a lot of energy, consume a large amount of energy, etc., and achieve the effects of increasing plant growth rate, increasing plant yield, and increasing carbon dioxide concentration

Inactive Publication Date: 2008-12-03
黄卫东 +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Producing these fertilizers requires complex facilities and consumes a lot of energy
In the process of plant conversion and utilization, a large amount of waste is generated, complex facilities are required, and a large amount of energy is consumed in the process of t

Method used

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  • Method for producing methyl hydride and electricity with solar energy
  • Method for producing methyl hydride and electricity with solar energy

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Embodiment 1

[0034] Tall fescue is planted in a greenhouse with an area of ​​300 mu, and 0.5-1.5 tons of tall fescue stems and leaves are collected every day, equivalent to hay. 3 Fermentation in anaerobic digestion reactor 2 to generate biogas 300-900m 3 , biogas residue and biogas slurry are artificially sprinkled into the greenhouse 1 to be used as fertilizer for the growth of tall fescue, and the methane and carbon dioxide in the biogas are separated in the separator 3, and the carbon dioxide is passed into the greenhouse to increase the concentration of carbon dioxide in the greenhouse and promote plant photosynthesis and Output, methane becomes product output after desulfurization and drying, and produces 180-540m methane per day3 about.

Embodiment 2

[0036] Plant alfalfa on an area of ​​1,500 mu of land, and collect 2.5-7.5 tons of alfalfa stems and leaves equivalent to hay every day. 3 Fermentation in anaerobic digestion reactor 2 to generate biogas 1500-4000m 3 , biogas residue and biogas slurry are used as fertilizers for plant growth, and the biogas is directly burned with the air in the greenhouse to generate electricity of about 3000-8000kwh in the gas turbine 4 .

Embodiment 3

[0038] In a greenhouse with an area of ​​about 150 mu, a pool with a depth of 1m is set up to plant hyphae hyphae. The pool is composed of two closed circular channels formed between three circular walls with diameters of 350 meters, 120 meters and 10 meters. The depth of the local area in the channel is 3 meters, and a low-speed thruster with a diameter of 1.8 meters is installed to push the water body to flow at a flow speed of 0.01-0.05m / s. The sewage with a flow rate of 10,000 tons / day removes larger solids through the grille, removes solids with a larger specific gravity through the grit chamber, and flows into the sedimentation tank composed of a 10-meter circular wall. The settled sludge and solids removed by the grille are sent to It enters the anaerobic digestion reactor, and the effluent enters the annular pool. The ring-shaped pool ditch is equipped with hydrangea collection equipment, which is composed of a belt conveyor, a crushing device and a pump. The stems and...

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Abstract

The invention relates to a method for generating methane and electricity by utilizing solar energy. A plant which can quickly grows is planted in a closed solar greenhouse; anaerobic digestion is performed to the plant after being harvested, to generate marsh gas with the methane and carbon dioxide; the marsh gas is burnt to generate the electricity; and simultaneously, carbon dioxide is generated; or the marsh gas is separate to generate methane and carbon dioxide; generated carbon dioxide enters the greenhouse; methane is output; and the anaerobic digestion remaining slag and the digestive juice of the plant are taken as fertilizers used for the growth of the plant in the greenhouse. A self-generating circulating system of the invention almost has no energy loss, therefore, the fertilizers used for the growth of the plant is saved. Any matters like fertilizers etc. are not required to be inputted in the system, so that the conversion and utilization processes of the solar energy is simplified. The annual output of the methane of the solar greenhouse/mu reaches 6000 squares (75 percent of digestion conversion ratio), and 24000 kwh of electricity is generated.

Description

technical field [0001] The invention belongs to the field of energy technology, and more specifically relates to solar energy plant conversion and a method for producing methane fuel and electricity using plants. Background technique [0002] Existing solar energy utilization methods, such as photovoltaic cells, solar heat collectors, etc., the main facilities are designed and manufactured to collect the maximum energy of solar radiation, the equipment is complex, and the utilization rate is very low, which makes the utilization cost of solar energy very high. Plants can convert solar energy into biomass through photosynthesis without complicated devices, and it is an energy source that people have used since ancient times. Although the cost of biomass energy is low, the resources are scattered and the quality is low. With the emergence of fossil fuels and the development of industrialization, the use of biomass energy has gradually ceased in developed areas. In recent year...

Claims

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Application Information

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IPC IPC(8): C12P5/02C10L3/00C05F11/00A01G7/02
CPCY02E50/343Y02E50/30Y02P20/133Y02P20/59Y02P60/12Y02W30/40
Inventor 黄卫东夏维东
Owner 黄卫东
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