What are the application scenarios of vertical tube furnace fluidized bed?

The vertical tube furnace fluidized bed combines the characteristics of compact vertical structure and efficient heat and mass transfer of fluidized bed, and has shown significant advantages in multiple industrial fields. Its core application scenarios and effects are as follows:

1. Chemical industry: Catalyst treatment and synthesis
Catalyst calcination
Effect: After calcination, the catalyst activity meets the standard more efficiently, and the energy consumption is reduced compared to traditional converters.
Advantages: Fluidized bed achieves uniform heating of particles, avoiding local overheating and catalyst deactivation; Vertical structure saves space and is suitable for continuous production.
catalytic cracking
Scenario: During the catalytic cracking process of petroleum fractions, the catalyst needs to be frequently regenerated to maintain its activity.
Application: Fluidized bed reactors achieve efficient cracking through continuous separation and regeneration of catalysts.
Advantages: The continuous operation characteristics of fluidized beds and the compactness of vertical structures reduce the cost of catalyst replacement.

2. Metallurgical field: comprehensive utilization of mineral resources
Oxidation of copper sulfide ore
Scenario: Oxygen enriched air is introduced at 650 ℃ to oxidize copper sulfide to copper oxide.
Advantages: The strong gas-solid contact characteristics of fluidized beds accelerate oxidation reactions, and the vertical structure is suitable for large-scale continuous production needs.
Direct reduction of iron ore
Scenario: Utilizing fluidized bed technology to directly reduce iron ore to metallic iron.
Application: By controlling gas flow rate and temperature, efficient reduction can be achieved.
Effect: The restoration efficiency is improved compared to traditional methods, and energy consumption is reduced.
Advantages: The uniform heat transfer characteristics of fluidized bed prevent iron ore agglomeration, and the vertical structure saves floor space.

3. Energy sector: Clean combustion and gasification
Low calorific value fuel combustion
Scenario: Burning low calorific value materials such as low-grade coal and household waste.
Application: Fluidized bed boilers absorb SO ₂ through limestone particles to reduce pollutant emissions.
Effect: Reduced concentration of SO ₂ emissions and NOx emissions.
Advantages: The wide load regulation capability of fluidized bed is adaptable to fuel fluctuations, and the vertical structure is suitable for urban waste treatment plants.
Coal gasification
Scenario: Fully mix coal particles with gasifying agents in the furnace to achieve synchronous drying, dry distillation, gasification, and combustion.
Application: Fluidized bed gasifier improves carbon conversion rate and reduces carbon loss in fly ash.
Effect: Increased carbon conversion rate and reduced carbon content in fly ash.
Advantages: The strong mixing characteristics of fluidized beds accelerate gasification reactions, and the vertical structure facilitates the integration of waste heat recovery systems.

4. Environmental Protection: Waste Management and Resource Utilization
municipal solid waste incineration
Scenario: Dealing with urban household waste to achieve reduction, harmlessness, and resource utilization.
Application: Fluidized bed incinerators decompose organic matter at high temperatures (above 850 ℃) to reduce the generation of dioxins.
Effect: High garbage reduction rate and high thermal efficiency.
Advantages: The uniform combustion characteristics of fluidized beds avoid local overheating, and the vertical structure saves land costs.
Heavy metal wastewater treatment
Scenario: Recycling heavy metals (such as copper and zinc) from wastewater.
Application: Multi layer fluidized bed adsorption device adsorbs heavy metal ions through particles.
Effect: Higher heavy metal recovery rate and higher effluent compliance rate.
Advantage: The continuous operation characteristics of fluidized beds are suitable for large-scale wastewater treatment needs.

5. Materials field: Preparation of new energy materials
Polycrystalline silicon production
Scenario: Decompose silane gas into polycrystalline silicon.
Application: Fluidized bed reactor achieves high-purity polycrystalline silicon deposition by controlling temperature and gas flow rate.
Effect: Polycrystalline silicon has higher purity and improved production efficiency.
Advantages: The uniform heat transfer characteristics of fluidized beds prevent silicon particle agglomeration, and the vertical structure facilitates integration into vacuum systems.
Synthesis of Lithium ion Battery Materials
Scenario: Synthesis of positive electrode materials for lithium-ion batteries (such as LiCoO ₂).
Application: Fluidized bed reactor achieves uniform synthesis of materials through continuous mixing and reaction.
Effect: Uniform distribution of material particle size and improved electrochemical performance.
Advantages: The strong mixing characteristics of fluidized beds accelerate reactions, and the vertical structure saves laboratory space.