Tube furnace pyrolysis

Tube furnace pyrolysis is a process in which a tube reactor is placed in a heating furnace, and the outer wall of the reactor is heated by fuel combustion and heat transfer is carried out between the walls, causing the reaction materials inside the tube to undergo cracking. It is usually carried out under steam dilution conditions and is widely used in the treatment and energy recovery of biomass, waste plastics, sludge and other waste materials. The following is a detailed introduction to tube furnace pyrolysis:

1. Working principle
Tube furnace pyrolysis transfers heat from the heating furnace to the reactants inside the tube through wall to wall heat transfer, allowing them to undergo pyrolysis reactions under anaerobic or low oxygen conditions. During this process, organic matter in the material decomposes into gas, liquid, and solid products.

2. Application Fields
Waste disposal: Tube furnace pyrolysis technology is widely used in the treatment of biomass, waste plastics, sludge and other waste materials. Through pyrolysis treatment, these wastes can be converted into valuable resources such as bio oil, bio gas, etc.
Energy recovery and utilization: The combustible gases and liquid fuels produced by pyrolysis can be used as energy for recovery and utilization, replacing traditional fossil fuels and reducing energy consumption and environmental pollution.
Environmental protection and emission reduction: Tube furnace pyrolysis can effectively reduce the generation and emission of harmful gases by controlling reaction conditions and atmosphere during waste treatment. The solid residue generated by pyrolysis can also be further processed, such as for brick making, landfill, etc., to achieve waste reduction, resource utilization, and harmless treatment.

3. Technical features
Accurate temperature control: Tube furnace pyrolysis technology can precisely control the reaction temperature, ensuring the stability and product quality of the pyrolysis process.
Controllable atmosphere: By adjusting the type and flow rate of gas introduced into the tube furnace, the atmosphere of the pyrolysis reaction can be controlled, thereby affecting the type and properties of the products.
High processing efficiency: Tube furnace pyrolysis technology has high processing efficiency and can continuously and stably process large amounts of waste.

4. Actual case
Biomass pyrolysis: Pre treated cork can be pyrolyzed at 550 ℃ for 60 minutes to produce biochar materials with improved adsorption performance. The adsorption capacity of biochar pre treated with expansion for methyl blue and Congo red is higher than that of untreated samples.
Pyrolysis of waste plastics: Through tube furnace pyrolysis technology, waste plastics can be converted into fuel oil and combustible gases, achieving the resource utilization of waste plastics.
Sludge pyrolysis: Tube furnace pyrolysis technology can also be used for sludge treatment, which converts organic matter in sludge into combustible gases and biochar through pyrolysis, reducing the volume and harmfulness of sludge.