Hydrocarbon Desulfurization via Aldehyde Conversion
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Solution Overview
Problem
Current methods for reducing sulfur content in hydrocarbons, such as catalytic hydrodesulfurization, require catalyst replacement due to nickel and vanadium deposition and do not effectively remove sulfur compounds without severe conditions or additional separation steps.
Innovation Solution
A method involving the conversion of sulfur compounds in hydrocarbons with α,β-unsaturated aldehyde compounds into water-soluble compounds using an aqueous sulfite solution, followed by oil-water separation, eliminates the need for catalysts and severe conditions, allowing for efficient sulfur removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If catalytic hydrodesulfurization method is used to reduce sulfur content in hydrocarbons, then sulfur content can be reduced, but catalyst needs periodic replacement due to nickel and vanadium deposition
Solution Approach 1:
The invention extracts and removes sulfur compounds from hydrocarbons using a chemical reaction with sodium hydroxide solution, separating the sulfur-containing compounds from the hydrocarbon phase. This extraction method avoids catalyst deposition issues while achieving effective sulfur removal.
Solution Approach 2:
The invention changes the chemical parameters by using sodium hydroxide solution to react with sulfur compounds, converting them into water-soluble forms that can be separated from the hydrocarbon phase. This parameter change enables sulfur removal without requiring catalysts that suffer from deposition problems.
2Manufacturing precision
If chemical methods using aldehyde compounds are used to convert sulfur compounds, then sulfur compounds are converted into other compounds, but sulfur content cannot be removed without additional separation operation
Solution Approach 1:
The invention utilizes phase transition by reacting sulfur compounds with sodium hydroxide solution to form water-soluble compounds that separate into a distinct aqueous phase from the hydrocarbon phase. This phase separation automatically achieves sulfur removal without requiring additional complex separation operations.
Solution Approach 2:
The sodium hydroxide solution acts as an intermediary that facilitates the conversion of sulfur compounds into water-soluble forms, enabling easy separation from the hydrocarbon phase. This intermediary substance simplifies the overall process by combining conversion and separation functions.
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 effectively removes sulfur compounds from hydrocarbons without catalysts or severe conditions, achieving high sulfur content reduction and desulfurization efficiency.
Implementation Method 1
converting a reaction product of at least one sulfur compound selected from the group consisting of hydrogen sulfide and a compound containing a —SH group which are contained in a hydrocarbon with an α,β-unsaturated aldehyde compound into a water-soluble compound
Implementation Method 2
separating oil and water
Data Source
AI summary
The present invention relates to a method for producing a hydrocarbon, including a step (Y) of converting a reaction product of at least one sulfur compound selected from the group consisting of hydrogen sulfide and a compound containing a —SH group which are contained in a hydrocarbon with an α,β-unsaturated aldehyde compound into a water-soluble compound in the presence of water, and a step (Z) of separating oil and water.