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Resolutely implement the "double carbon" target | Nianda group modular mobile fluidized bed put into trial successfully


Release time:

2021-10-13

Global warming is an important problem facing today's society, because a large number of agricultural and forestry wastes and other biomass are burned or piled up in the field, which will decompose and release a large amount of carbon dioxide and methane and other gases, leading to climate warming over time.

Global warming is an important problem facing today's society, because a large number of agricultural and forestry wastes and other biomass are burned or piled up in the field, which will decompose and release a large amount of carbon dioxide and methane and other gases, leading to climate warming over time.

Sustainable biochar is a powerful tool to deal with global warming. In recent years, biochar has been shown to improve environmental quality, increase soil water holding capacity, reduce greenhouse gas emissions and improve crop growth by absorbing heavy metals and organic pollutants.

What is biochar?

Biochar is a solid substance formed by thermochemical conversion of biomass in an anoxic environment. Forestry waste, livestock and poultry manure, sludge, biogas residue and other solid wastes can be prepared by thermochemical conversion.

As a new type of adsorption material with strong adsorption capacity and stability, biochar can reduce the mobility and bioavailability of heavy metals, and has important application prospects in the field of environmental pollution remediation.

Biomass Gasification Multi-generation Technology

As we all know, my country is rich in agricultural and forestry biomass resources. There are 1 billion tons of straw, 0.05 billion tons of rice husk, and tens of billions of tons of forest tending residues, reeds, fruit tree branches, etc., so how to turn these agricultural and forestry wastes into treasure?

In 2002, the biomass pyrolysis gasification polygeneration team headed by Professor Zhou Jianbin pioneered the biomass pyrolysis gasification polygeneration utilization technology, which overturned the mode of direct combustion of agricultural and forestry wastes for power generation and single output. It not only has biomass energy, but also can produce biomass carbon at the same time, realizing negative carbon emissions!

  

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Biomass gasification polygeneration technology also innovates the history of fertilizer. The use of carbon-based fertilizer and biomass-extracted liquid fertilizer can directly reduce the amount of fertilizer by 10-30%, and has certain efficacy, which can repair degraded, compacted and acidified soil.

Since 2016, Nianda Group, relying on a professional team led by Professor Huang Yaji of Southeast University and Professor Zhou Jianbin of Nanjing Forestry University, has realized the achievement and marketization of this technological research, and has developed a fluidized bed biomass carbonization device, which can convert agricultural biomass such as rice husk straw into biochar, with an average biomass quality of 1.2t per hour and a carbon yield of 350kg.

The straw charcoal produced by this equipment can be used to produce carbon-based compound fertilizer, which is of great benefit to the improvement of soil remediation and the increase of crop production. Fruit shell charcoal can be used to produce high-quality activated carbon by physical or chemical methods. At the same time, the biomass gas produced can be directly burned to generate electricity or supplied to the gas industry after treatment.

  

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(Fluidized bed biomass carbonization device)

Scientific research will not stop because of achievements. In 2021, Da Group will strengthen its technical research and develop a new modular movable fluidized bed, which has achieved a comprehensive iterative upgrade in performance, structure and configuration. It covers only 1/3 of the original device and can be used in a mobile way. By directly processing wastes such as straw and fruit branches in the field, biomass carbon will be returned to the field to maximize the convenience of use.

  

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(Modular Mobile Fluidized Bed)

That is, the use of per 1t of agricultural and forestry biomass gasification polygeneration, from three aspects of carbon dioxide emission reduction:

1.1.72t of biomass formation (growth process) to absorb carbon dioxide;

2.0.6 of carbon dioxide fixation by biochar -1t;

3. Carbon dioxide 1.3t to replace fossil energy emission reduction; 3.6 of total carbon dioxide emission reduction -4t!

Yinda Group R & D Equipment Helps Achieve "Double Carbon" Goal

"Carbon peak" and "carbon standard" are a great green revolution. The realization of this great goal has a bearing on the common interests of all countries and people of the world.

At the end of September 2021, a new modular movable fluidized bed developed by a group of R & D team members of Nianda Group in the workshop successfully produced a large amount of biomass carbon after rigorous operation, and met the product quality requirements, and the production test was a complete success.

The successful production of this biochar also marks that Nianda Group has reached a new level on the road of achieving the "double carbon" standard.

  

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In the future, Da Group will continue to deepen research and development in the environmental manufacturing sector, deepen efforts in soil remediation and improvement, focus on rural areas, centralize agricultural and forestry waste, respond to the government's call for carbon neutrality, and recycle agricultural and forestry waste.

Nianda Group will maximize the role of the modular movable fluidized bed developed by Nianda Group, and use the biochar produced by Nianda Group to return to the field to fix carbon dioxide from the root. This method can increase soil carbon sequestration by about 40-50%.

At the same time, biochar returning to the field can inhibit the adsorption of phosphorus in the soil, thereby improving the absorption and utilization of phosphorus in plants; in particular, it can improve the ground temperature (1-3 ℃) and heat preservation, which is conducive to the growth of crops and makes crops emerge and mature early (3-5 days).

The most important thing is that it can also absorb heavy metals in the soil, effectively reduce the content of heavy metals in crops and food; improve the yield and quality of agricultural products, so that people can really eat safe food and safe food.

  

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Relying on years of accumulated technical experience in the deep cultivation industry, Nianda Group strives for survival by quality and development by innovation. In order to better serve the development of local economy, society and environmental protection, Nianda Group will actively explore more fields; through the research and development of mobile straw Comprehensive utilization device helps the national goal of "carbon neutrality", contributes to the construction of green and low-carbon life, and strives to achieve the goal of "carbon peak and carbon neutrality" ahead of advance!

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