Thermal Cracking System for Waste Pyrolysis and Energy Recovery
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Solution Overview
Problem
Current methods for treating plastic and rubber waste through incineration produce harmful gases, polluting the environment and contradicting the objectives of sustainable development.
Innovation Solution
A thermal cracking (pyrolysis) system that includes a thermal cracking treatment unit capable of extracting regenerated oil or auxiliary gas for use as combustible materials, promoting recycling and reuse while achieving sustainable environmental development.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If incineration is used to treat plastic and rubber waste, then waste treatment is achieved, but harmful gases are produced that pollute the environment
Solution Approach 1:
The patent changes the fundamental parameter of thermal treatment from high-temperature combustion (incineration) to controlled thermal decomposition (pyrolysis) at lower temperatures in an inert atmosphere. This parameter change transforms the chemical reaction pathway, converting plastic waste into pyrolysis oil and gas products instead of combustion products, thereby eliminating harmful gas emissions while recovering energy
Solution Approach 2:
The patent introduces an inert atmosphere (nitrogen or carbon dioxide) into the treatment system to replace oxygen during thermal processing. This inert environment prevents combustion reactions that produce harmful gases, while still enabling thermal decomposition to occur, thus achieving waste treatment without environmental pollution
2Object-generated harmful factors
If thermal cracking is used to treat waste, then harmful gas production is reduced, but the system complexity increases due to additional processing units
Solution Approach 1:
The patent combines multiple functions into integrated units: the pyrolysis reactor simultaneously performs thermal decomposition, product separation, and energy recovery; the system merges waste feeding, thermal processing, and product collection into a unified flow, reducing overall system complexity despite the advanced processing methods employed
3Loss of substance
If regenerated oil and auxiliary gas are extracted and reused as combustible materials, then recycling and reuse are promoted, but the device complexity increases
Solution Approach 1:
The patent implements a self-service system where the pyrolysis process generates its own fuel (pyrolysis gas and oil) that is automatically fed back to sustain the thermal cracking reactions. This internal fuel circulation eliminates the need for external fuel sources and complex external fuel supply systems, achieving material recycling without proportionally increasing device complexity
Solution Approach 2:
The regenerated pyrolysis oil and gas serve multiple functions: they act as combustible materials to sustain the pyrolysis process, provide process heat, and can be stored or transported for other uses. This multi-functionality reduces the need for separate specialized equipment for each function, thereby limiting the increase in device complexity
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 system effectively recycles and reuses materials from waste, reducing environmental pollution and aligning with sustainable development goals by utilizing the extracted regenerated oil or auxiliary gas as combustible materials.
Implementation Method 1
thermal cracking (also known as pyrolysis) system
Implementation Method 2
condensation module
Data Source
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AI summary
A thermal cracking system (1) includes a thermal cracking treatment unit (40) whose technical features allow a regenerated oil or a regenerated auxiliary gas to be extracted for use as a combustible material in the combustion process of the thermal cracking treatment unit (40), thereby contributing substantially to recycling and reuse in order to achieve sustainable development of the environment effectively.