Current Status and Trends in the Development of Biogas Industry
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Currently, the main applications of biomass gas (biogas) worldwide are cogeneration, as well as purification to produce pipeline gas and natural gas for use in vehicles. There are mainly three business models: First, the Cogeneration (CHP) model – where waste from energy plants and farms is pre-treated and then subjected to anaerobic fermentation. The biogas produced is used for generating heat and electricity, as well as for heating fermentation tanks; the residue and liquid byproducts from this process are used as fertilizers. The entire process is carried out under automatic control. II. Vehicle biomass gas mode (CNG): Biogas is produced from organic waste, and after purification, refinement, and compression, it is used as a fuel for transportation. III. Pipeline biomass natural gas model: Biogas produced from various mixed feedstocks is purified and then integrated into the natural gas network, thereby reducing dependence on natural gas.
I think cogeneration is a better trend; firstly, the development of electric vehicles may gradually eliminate the need for independent energy generation systems in cars, as charging directly will be sufficient. Home kitchen appliances are also gradually being replaced by electric heating appliances, which are safer and more energy-efficient. In the future, the only way to transmit energy will be through power grids; wouldn’t it be better if gas pipelines were replaced? Support for the development of biogas and cogeneration methods; the above represent only my personal, immature views.
In winter, when temperatures are low, insufficient biogas production is a problem
Combining heat and electricity generation for biogas production from organic waste is a good approach.
This post was last edited by lcmqh@163.com on 2019-7-9 at 11:08. The third method is the best; **efforts should be made to develop applications for biogas technology. Urban food waste and wastewater from toilets are excellent raw materials for this purpose. By processing them in a centralized manner and using the resulting biogas in urban gas networks, environmental pollution can be reduced. The biogas slurry, when used as fertilizer, is an excellent eco-friendly option, especially for growing vegetables!
With so many industrial wastewater treatment plants across the country, if all the biogas generated were utilized, it would represent a tremendous asset! !
Centralized biogas production is a good approach, but the high cost of collecting organic matter is a major factor restricting such centralized production.