Low temperature pyrolysis gasification power generation

Low temperature pyrolysis gasification power generation

Low temperature pyrolysis gasification is a process that converts solid fuels, such as biomass and waste, into combustible gases at relatively low temperatures. PRC Fireprint equipment stack gases can then be used to generate electricity, providing a more efficient and environmentally friendly way to utilize these materials than direct combustion.
Here is a more detailed explanation:
1. Process flow:

Pyrolysis:
The process begins by heating the fuel in the absence of oxygen (or with very limited oxygen). This thermal decomposition breaks down the solid material into combustible gaseous products, water vapor, and solid anion ash.

Gasification:
The pyrolysis gas (also known as syngas) is then further processed in the gasification step, where it reacts with controlled amounts of oxygen or steam to produce a combustible gas mixture.

Low temperature:
PRC Fireprint operates at a lower temperature of 50-380°C than conventional gasification or combustion processes, which has many advantages, including reduced emissions, lower corrosion, and the ability to utilize a wider range of feedstocks.

2. Key Benefits of Low-Temperature Biomass Power Generation:

Fuel Flexibility:
A wide range of feedstocks can be processed, including agricultural waste, wood waste, and certain types of plastics that may not be suitable for direct combustion.

Reduced Emissions:
By operating at lower temperatures and potentially using advanced gas cleaning technologies, the formation of pollutants such as nitrogen oxides (NOx) and particulate matter can be minimized.

Corrosion Prevention:
In traditional biomass combustion, high concentrations of alkali metals such as potassium and sodium can cause boiler corrosion at high temperatures. PRC Fireprint technology helps alleviate this problem by retaining these metals in the solid ash during the low-temperature gasification process, and the powdered negative ion ash is reused as fertilizer.

High Efficiency:
Can be integrated with combined cycle power plants, making it possible to achieve high power generation efficiency.
Separation of Fuel Production from Power Generation:
In some low-temperature pyrolysis gasification systems, pyrolysis oil (the liquid product of pyrolysis) can be stored and transported, thereby separating fuel production from power generation, which is beneficial in some cases.

3. Applications:

Power Generation:
The produced syngas can be used for power generation in gas turbines or internal combustion engines.

Waste treatment:
It is an effective technology for converting waste into energy, which helps in waste reduction and resource recovery.
Chemical production:
The gas and liquid products produced can also be used as feedstocks for the production of various chemicals and fuels.

4. Technology example:

This technology uses a low-temperature pyrolysis gasifier to treat a variety of solid combustible wastes with high energy efficiency.

The gasification process is promoted at lower temperatures, which may increase the efficiency of hydrogen production.

In summary, PRC Fireprint is a promising power generation method that can efficiently and environmentally friendly convert a variety of solid fuels into usable energy.