Zeolite Dehydration Apparatus for Ethanol Water Separation
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Solution Overview
Problem
Current methods for dehydrating hydrophilic alcohols like ethanol are energy-intensive, labor-intensive, and require significant manual intervention, making them inefficient and economically unfeasible, especially when ethanol absorbs more than 5% water, reducing its effectiveness in processes like plant oil extraction.
Innovation Solution
A method and apparatus that pressurize and heat an ethanol/water mixture to separate water using a Zeolite separator, with the pressurized and heated dehydrated ethanol used to heat and cool the mixture, and optionally passing it through 3A beads to achieve high-proof ethanol, allowing for automated and energy-efficient dehydration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If fractional distillation is used to dehydrate ethanol/water mixture, then dehydration is achieved, but energy consumption increases and manual intervention is required
Solution Approach 1:
The invention changes the operating parameters from atmospheric pressure to super-atmospheric pressure (at least 40 psig) and from ambient temperature to elevated temperature (at least 170°F), enabling continuous dehydration without the energy-intensive heating cycles of fractional distillation
Solution Approach 2:
The invention replaces the mechanical heating and manual operation of fractional distillation with a pressurized continuous flow system using Zeolite separators, eliminating the need for significant manual intervention and reducing energy consumption
2Manufacturing precision
If 3-A beads are used to remove water from ethanol, then nearly 200 proof ethanol is produced, but labor intensity increases and energy consumption increases for bead recharging
Solution Approach 1:
The pressurized dehydrated ethanol produced by the system is used to heat the incoming pressurized mixture, creating a self-sustaining process that eliminates the need for external energy input and automated bead recharging operations
Solution Approach 2:
The Zeolite separator performs both dehydration and heat transfer functions, as the pressurized dehydrated ethanol from the separator is used to heat the incoming mixture, making the system multi-functional and reducing labor intensity
3Manufacturing precision
If 3-A beads are used to dehydrate ethanol, then high proof ethanol is produced, but energy consumption increases for vacuum heating over extended periods
Solution Approach 1:
The system uses the pressurized dehydrated ethanol produced by the Zeolite separator to heat the incoming pressurized mixture, creating a self-sustaining thermal process that eliminates the need for external energy input for bead recharging
Solution Approach 2:
The invention enables continuous operation without extended vacuum heating cycles, replacing periodic energy-intensive recharging with continuous pressurized flow through Zeolite separators
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 efficient dehydration of ethanol to high proof levels with reduced energy consumption and operator intervention, enabling continuous and automated operation, thus enhancing the economic viability of reusing ethanol in industrial processes.
Implementation Method 1
passing the heated and pressurized mixture through at least one Zeolite separator to produce separate streams of water and pressurized and heated dehydrated ethanol
Implementation Method 2
using the pressurized and heated dehydrated ethanol to at least in part heat the pressurized mixture and to cool the pressurized and heated dehydrated ethanol
Implementation Method 3
a pump to pressurize a liquid alcohol and water mixture to a super-atmospheric pressure of at least 40 psig
Data Source
AI summary
A process of and apparatus for dehydrating an alcohol/water mixture may include pressurizing the mixture to at least 40 psig, heating the pressurized mixture to a temperature of at least 170° F., passing the heated and pressurized mixture through at least one Zeolite separator to produce separate streams of water and pressurized and heated dehydrated alcohol, and using the pressurized and heated dehydrated alcohol to at least in part heat pressurized mixture and to cool the pressurized and heated dehydrated alcohol. At least some implementations may include cooling the pressurized and heated dehydrated alcohol to a temperature below its boiling point at atmospheric pressure. At least some implementations may include applying a vacuum to the water stream side of the Zeolite separator. At least some implementations may include cooling the stream of water to a temperature of less than about 200° F.