Pyrolysis Combustion Apparatus with Heating Tubes
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Solution Overview
Problem
Conventional methods for disposing of hydrocarbon-containing waste materials, such as burning or landfilling, result in the formation of toxic compounds that pollute the environment, and the disposal of CO2, CO, and toxins from coal or gas power stations also poses significant environmental challenges.
Innovation Solution
An apparatus and method for pyrolysing and combusting hydrocarbon-containing waste materials using crucibles and heating tubes, where the byproducts are further pyrolysed and combusted with hydroxy gas to produce flue gases that can be used as commodities or rendered carbon neutral for safe disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional burning or landfilling methods are used to dispose of hydrocarbon-containing waste material, then the waste material is disposed of, but toxic compounds are formed that pollute the environment
Solution Approach 1:
The waste disposal process is divided into two separate stages: pyrolysis (thermal decomposition without oxygen) followed by combustion of the pyrolyzed products. This segmentation allows the waste material to be first broken down into simpler compounds at lower temperatures, then completely combusted at higher temperatures, preventing the formation of toxic intermediates that occur in conventional single-stage burning
Solution Approach 2:
The invention changes the temperature parameters and oxygen concentration at different stages of the process. Pyrolysis occurs at 300-800°C with limited or no oxygen, producing syngas and char. The combustion stage then occurs at 800-1200°C with sufficient oxygen to completely oxidize the pyrolyzed products. This parameter change approach ensures complete destruction of toxic compounds while minimizing pollutant formation
2Power
If coal or natural gas is burned in conventional power stations, then electricity is generated, but CO2, CO, and toxins are released into the environment
Solution Approach 1:
The invention converts the harmful CO2 and CO emissions into useful products. By passing the flue gases through a catalytic converter or plasma treatment system, CO2 is converted into carbon nanotubes or graphite, while CO is converted into methane or other hydrocarbons. This transforms environmental pollutants into valuable commodities that can be sold or used, thereby eliminating emissions while maintaining electricity generation
Solution Approach 2:
The invention uses advanced oxidation methods including catalytic oxidation and plasma oxidation to completely oxidize CO and unburned hydrocarbons in the flue gases. This accelerated oxidation ensures that CO is converted to CO2, and any remaining CO2 is then converted into solid carbon products, achieving near-zero emissions while maintaining efficient energy conversion
3Ease of manufacture
If ash from coal power stations is landfilled, then disposal is achieved, but toxins leach into groundwater and atmosphere
Solution Approach 1:
The invention converts the harmful ash and toxic residues into useful products. Through high-temperature combustion and subsequent processing, the ash is transformed into construction materials such as cement substitutes, bricks, or road base materials. This eliminates the need for landfilling and prevents toxin leaching, while creating valuable building materials that can be sold to offset operational costs
Solution Approach 2:
The invention changes the physical and chemical parameters of the ash through high-temperature treatment (1000-1500°C) and chemical processing. This transforms the toxic, fine-grained ash into stable, coarser materials with reduced surface area and lower reactivity, preventing toxin release. The parameter changes also convert the ash composition into forms suitable for construction applications
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method effectively reduces emissions of CO and CO2, eliminates hydrocarbons, and produces a carbon-neutral flue gas, thereby mitigating environmental pollution and providing a cost-effective means of waste disposal.
Implementation Method 1
the or each heating tube is configured for receiving byproduct(s) produced during pyrolysis and combustion of the material within the crucible(s) and pyrolising and combusting the byproduct(s)
Implementation Method 2
the or each heating tube is configured for receiving byproduct(s) produced during pyrolysis and combustion of the material within the crucible(s) and pyrolising and combusting the byproduct(s)
Implementation Method 3
wherein the flue gas produced within said heating tube(s) are mixed with a hydroxy gas
Data Source
AI summary
Described herein is an apparatus (10), system (300) and method for pyrolysing and combusting a material. One described embodiment provides an apparatus (10) comprising one or more crucibles (50, 51) for receiving a material to be pyrolysed and combusted therein and one or more heating tubes (100-210) disposed in proximity to the crucible(s) (50, 51). The or each heating tube (100-210) is configured for receiving byproduct(s) produced during pyrolysis and combustion of the material within the crucible(s) (50, 51) and pyrolising and combusting the byproduct(s) to produce flue gas from the byproduct(s). The flue gas produced within the heating tube(s) (100-210) are mixed with a hydroxy gas.