Uncooled Synthesis Gas Oxidation for Waste Thermal Processing
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Solution Overview
Problem
Existing methods for thermal waste treatment lose a substantial amount of energy during shock cooling of synthesis gas, limiting the utilization of thermal energy and increasing operational costs.
Innovation Solution
The method involves high-temperature treatment of waste with oxygen above 1000°C, where synthesis gas is used uncooled and unpurified for thermal energy extraction, followed by oxidation in a combustion chamber to harness both thermal and chemical energy, with the resulting steam used for electricity generation or district heating, and the gas undergoes multi-stage cleaning for further energetic or chemical use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If shock cooling (quenching) of synthesis gas is applied, then the synthesis gas is rapidly cooled to stop reactions, but a substantial part of the energy obtained is lost
Solution Approach 1:
The patent converts the harmful energy loss from shock cooling into a beneficial resource by capturing the hot synthesis gas and using it as fuel in a combustion chamber. The thermal energy that would otherwise be wasted is now utilized to generate steam and drive turbines, transforming an energy loss into an energy gain.
Solution Approach 2:
The patent introduces a combustion chamber as an intermediary between the gasifier and the steam generator. This intermediary device allows the hot synthesis gas to be oxidized and its thermal energy transferred efficiently to water for steam production, rather than directly cooling the gas and losing the energy.
2Adaptability or versatility
If unsorted waste material is processed, then all types of waste can be disposed of, but the energy utilization is reduced due to inhomogeneous structure
Solution Approach 1:
The patent changes the operational parameters by maintaining very high temperatures (above 1000°C) throughout the entire gasification process and ensuring the high-temperature zone extends to the outlet. This parameter change allows unsorted waste to be fully gasified without forming condensates, tar, or oil, thereby maximizing energy utilization from heterogeneous waste material.
Solution Approach 2:
The patent ensures continuous high-temperature treatment throughout the gasification process and into the combustion chamber. The synthesis gas is immediately oxidized in the combustion chamber without cooling interruptions, maintaining continuous useful thermal action and preventing energy loss through condensation or tar formation.
3Manufacturing precision
If high-temperature treatment above 1000°C is applied, then organic components are gasified and inorganic components melted, but substantial energy loss occurs during cooling
Solution Approach 1:
The patent converts the harmful thermal energy loss during cooling into a beneficial resource by capturing the hot synthesis gas and using it as fuel in a combustion chamber. The thermal energy that would otherwise be wasted is now utilized to generate steam and drive turbines, transforming an energy loss into an energy gain.
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
This approach maximizes energy use, reduces costs, and enhances ecological efficiency by converting nearly all bound energy into usable forms, resulting in a higher electricity yield and lower system power consumption.
Implementation Method 1
the waste is subjected to a high-temperature treatment with oxygen and/or oxygen-enriched air at a temperature of over 1000° C., the organic waste components being gasified
Implementation Method 2
the inorganic waste components being melted
Implementation Method 3
which oxidizes uncooled, uncleaned synthesis gas
Implementation Method 4
The resulting thermal energy of the exhaust gas is further used thermally
Implementation Method 5
The waste is first compressed to minimize void volume while maintaining its mixed and composite structure
Implementation Method 6
until the liquids and volatile substances that are carried along have evaporated
Data Source
Figure 1
AI summary
The present invention relates to a method for the thermal treatment of waste materials of all kinds, in which the waste is subjected to high-temperature treatment with oxygen at temperatures exceeding 1000 °C, whereby the organic waste components are gasified. The resulting synthesis gas is extracted from the high-temperature reactor uncooled and unpurified and subsequently oxidized. The thermal energy of the exhaust gas is further utilized for thermal purposes. The present invention also relates to a corresponding apparatus for the thermal treatment of waste materials of all kinds.