What Is The Main Difference Betweer Biomass Gasification And Pyrolysis?

Biomass pyrolysis and gasification are two important energy conversion processes. Biomass pyrolysis furnace and biomass gasification equipment are to be used. But there are obvious differences and distinctions between their two processes. From the principle, products, and characteristics. If you want to know more about biomass pyrolysis. We can customise a free technical Jiejun plan for you. You are welcome to contact us.

Principle difference

Pyrolysis: pyrolysis is in the state of anaerobic and anoxic. The organic material is heated to a certain temperature. Thus the material undergoes chemical decomposition. The process of forming gaseous, solid, liquid and other combustible substances. In the process of biomass pyrolysis. Biomass raw materials in the isolation of oxygen atmosphere conditions subject to, or only a small amount of air into the conditions of thermal decomposition. This produces three-phase products.
Gasification: gasification, on the other hand, is under thermal conditions. A fixed amount of oxygen needs to be introduced. Combustion occurs incompletely during biomass heating. Generation of: combustible gases such as carbon monoxide, hydrogen, low molecular hydrocarbons and other processes. Biomass gasification process. Biomass feedstock undergoes stages of drying and drying, pyrolysis gasification, reduction and combustion. Conversion to hydrogen-rich fuel is initially achieved.

Atmospheric conditions

Biomass pyrolysis: requires a re-inert atmosphere or limited oxygen supply to send the pyrolysis reaction. Pyrolysis emphasises an oxygen-free or limited oxygen supply environment.
Biomass gasification: is the process of generating a flammable gas between the fuel and the surrounding atmosphere. The atmosphere can be: air, oxygen-enriched gas, hydrogen, water vapour, etc. Gasification emphasises the generation of a combustible gas.

Both products

Pyrolysis: the main products of pyrolysis are: solids (biomass char), gases (synthesiser, carbon monoxide and hydrogen composition), liquids (e.g. bio-oil, etc.). Each product has some commercial value and different areas of application. Bio-oil can be used as a fuel or further processed into chemicals. Biomass carbon, on the other hand, can be used in rubber, water purification, plastics and other industry sectors.
Gasification: The main product of gasification is hydrogen-rich fuel. Its hydrogen volume fraction is usually: 40~60%. A high calorific value synthesiser is also produced in the process. By-products such as tar are also produced. It is important to note that these by-products must be disposed of properly to avoid environmental pollution.

In addition, pyrolysis and gasification can be used in many ways. Pyrolysis and gasification differ in many ways: reaction conditions, reaction efficiency, products, energy consumption, etc. Pyrolysis is usually carried out at a lower temperature than gasification. Pyrolysis is usually carried out at lower temperatures and pressures. Gasification, on the other hand, requires higher temperature and pressure regulation. Pyrolysis has a relatively slow reaction rate. Gasification has a faster reaction rate. In terms of energy consumption, pyrolysis is relatively energy efficient. Gasification requires more energy to be injected. Both pyrolysis and gasification require support from biomass pyrolysis furnaces and biomass gasification equipment. The equipment directly determines the quality of pyrolysis and gasification products. Therefore, it is more critical to choose the right equipment for your needs.