Methanol Production via Hydrocarbon Pyrolysis and Condensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Methanol production methods using carbon dioxide as a raw material face challenges in securing hydrogen, which is often derived from fossil fuels, leading to high dependency on fossil fuels and environmental concerns.
Innovation Solution
A methanol production method involving a pyrolysis reaction and/or dehydrogenation of hydrocarbons to acquire hydrogen, followed by a conversion process that uses carbon oxide to produce methanol, where the reaction is facilitated by condensing high boiling point components and discharging them from the reaction system, reducing the reliance on fossil fuels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If hydrogen is produced by steam reforming of hydrocarbons, then hydrogen can be secured for methanol synthesis, but dependency on fossil fuel increases
Solution Approach 1:
The invention changes the source of hydrogen from steam reforming of hydrocarbons to hydrolysis of carbon dioxide. This parameter change in the chemical reaction pathway eliminates fossil fuel dependency while maintaining hydrogen supply for methanol synthesis.
Solution Approach 2:
The invention converts carbon dioxide, which is typically a harmful waste product, into a useful raw material for hydrogen production through hydrolysis. This transforms an environmental burden into a beneficial resource, simultaneously reducing fossil fuel dependency and providing hydrogen for methanol synthesis.
2Object-affected harmful factors
If carbon dioxide is used as a raw material for methanol production, then environmental problems are addressed, but hydrogen security becomes difficult
Solution Approach 1:
The invention merges two previously separate processes - carbon dioxide hydrolysis for hydrogen production and methanol synthesis - into an integrated system. The hydrogen generated from carbon dioxide hydrolysis is directly used in the methanol synthesis reaction, ensuring hydrogen availability while maintaining environmental benefits.
Solution Approach 2:
The system makes carbon dioxide self-serving by using it as both the carbon source and the hydrogen source (through hydrolysis) for methanol production. This eliminates the need to secure hydrogen from external fossil fuel-based sources, as the carbon dioxide itself generates the required hydrogen in-situ.
3Productivity
If high boiling point components are condensed and discharged from the reaction system, then reaction efficiency is improved, but system complexity increases
Solution Approach 1:
The invention utilizes phase transition (condensation) of high boiling point components to improve reaction efficiency. By condensing and removing these components from the reaction system, the equilibrium is shifted toward product formation, enhancing methanol production efficiency.
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 method enables the production of methanol with reduced dependency on fossil fuels, utilizing energy-efficient hydrogen acquisition and improving carbon yield, contributing to a more sustainable carbon circulation society.
Implementation Method 1
a gas acquisition step of acquiring a gas containing hydrogen by a pyrolysis reaction and/or a dehydrogenation reaction of a hydrocarbon
Implementation Method 2
a conversion step of converting a source gas containing at least a part of the gas and carbon oxide into methanol
Implementation Method 3
in the conversion step, the reaction is allowed to proceed by condensing a high boiling point component containing converted methanol and water
Data Source
AI summary
This method produces methanol with reduced dependency on fossil fuel. The method includes: a gas acquisition step of acquiring a gas (G1) containing hydrogen by a pyrolysis reaction and/or a dehydrogenation reaction of a hydrocarbon; and a conversion step of converting at least part of the gas (G1), and a source gas containing (G2) carbon oxide into methanol. In the conversion step, the reaction is allowed to proceed by condensing a high boiling point component containing converted methanol and water, and discharging the high boiling point component condensed to the outside of the reaction system.