Multi-Stage Hydrogen Fuel Production via Steam Injection
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Solution Overview
Problem
Existing processes for producing hydrogen-containing propellant gas suffer from instability and energy inefficiency due to inhomogeneous mixing of water and hydrocarbon components, leading to unstable flame combustion and increased energy absorption.
Innovation Solution
A multi-stage process where water and hydrocarbon components are introduced separately, with water heated to form steam in the first stage, followed by mixing and heating with hydrocarbon components in subsequent stages to ensure a homogeneous mixture and stable combustion, reducing hydrocarbon consumption and energy absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If water and hydrocarbon components are mixed in the liquid phase at ambient temperature, then the mixing process is simple, but the mixture becomes inhomogeneous and separates into layers, causing unstable flame combustion
Solution Approach 1:
The patent applies parameter changes by heating water to transform it from liquid phase to vapor phase before mixing with hydrocarbon components. This phase change parameter modification ensures that the components remain homogeneously mixed during combustion, preventing layer separation and maintaining stable flame combustion throughout the process.
Solution Approach 2:
The patent utilizes phase transitions by converting water from liquid to vapor state through heating. The water vapor then mixes with hydrocarbon components in the gas phase, creating a homogeneous mixture that maintains stability during combustion. This phase transition approach eliminates the layering problem inherent in liquid-phase mixing.
2Productivity
If components are burned at high temperatures during hydrogen-containing gas production, then the production process is intensified, but energy absorption capacity increases significantly
Solution Approach 1:
The patent converts the harmful effect of high energy absorption at high temperatures into a beneficial process. By introducing water vapor that undergoes endothermic decomposition reactions (C + H2O → CO + H2), the system absorbs excess heat that would otherwise be wasted, converting it into chemical energy stored in hydrogen-containing gas products. This reduces the net energy absorption capacity while maintaining production intensity.
3Quantity of substance
If superheated steam is mixed with hydrocarbons and subsequently heated, then hydrogen-containing gas is produced, but an additional energy source is required to obtain and heat the superheated steam
Solution Approach 1:
The patent merges the steam generation process with the hydrocarbon processing process. Water is introduced into the same reaction zone where hydrocarbons are processed, and the heat required for steam generation is obtained from the hydrocarbon combustion or processing heat. This integration eliminates the need for separate energy sources for steam preparation, reducing overall energy consumption while maintaining hydrogen-containing gas production.
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 process achieves stable and durable flame combustion, reduces hydrocarbon component consumption, and decreases energy absorption, resulting in a more efficient production of hydrogen-containing propellant gas.
Implementation Method 1
water heated to form steam in the first stage
Implementation Method 2
stable and durable flame combustion
Implementation Method 3
heating with hydrocarbon components in subsequent stages to ensure a homogeneous mixture and stable combustion
Data Source
Figure 1a~1b
Figure 2
Figure 3~6
AI summary
The invention relates to a process for producing hydrogen-containing propellant gas in a turbogenerator set. The multi-stage process for producing hydrogen-containing propellant gas (GG Arakelian process) is carried out in the turbogenerator set, which includes at least three stages for separating the production flows and the separation of water and hydrocarbon component feeds. In the first stage, water is fed in for heating and steam generation. In the second stage, a hydrocarbon component is fed in and mixed with steam by injection. The mixture is heated and passed to the third and subsequent heating stages for fuel production. The fuel produced is fed from the last stage to the system inlet for ignition and flame formation and to generate the working flame.The flame heats the process cylinder for multi-stage fuel production, with part of the fuel being directed to external consumption.