Vertical Drum Magnetic Separation for Geothermal Fluids
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Solution Overview
Problem
Geothermal energy production is hindered by the precipitation of mineral elements that clog heat exchangers, leading to downtime and increased costs, and existing methods for separating rare earth elements (REEs) and heavy metals (HEs) are inefficient and costly due to dust collection and frequent belt replacements.
Innovation Solution
A method and system that utilize a combination of centrifugal and magnetic forces to segregate REEs and HEs from condensates in geothermal fluids, using a vertically mounted drum with a magnet at its center, allowing for controlled separation and extraction of these elements, reducing the need for costly belt replacements and dust removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If horizontally mounted drums with magnetic fields are used to separate REEs and HEs, then separation by paramagnetic properties is achieved, but dust collection increases cost and requires frequent belt replacements
Solution Approach 1:
The patent inverts the conventional horizontal drum configuration by using a vertical drum configuration. This inversion allows gravity to assist the separation process and eliminates the need for horizontal belt systems that collect dust and require frequent replacement. The vertical arrangement enables REEs and HEs to be separated from condensates through magnetic fields while avoiding dust contamination issues.
Solution Approach 2:
The patent extracts and removes dust from the separation process by using a vertical drum configuration where dust does not accumulate on belts. The system selectively separates REEs and HEs from condensates through magnetic fields while excluding dust from the separation mechanism, thereby eliminating the need for dust removal operations and belt replacements.
2Power
If heat exchangers are used to transfer heat from geothermal fluids, then electrical power generation is enabled, but mineral precipitation clogs the system causing downtime
Solution Approach 1:
The patent applies preliminary action by separating REEs and HEs from the geothermal fluids before they reach the heat exchangers. The vertical drum magnetic separation system removes these mineral elements in advance, preventing them from precipitating and clogging the heat exchanger system during operation, thereby maintaining continuous power generation.
Solution Approach 2:
The patent extracts harmful mineral elements (REEs and HEs) from the geothermal fluids using a vertical drum magnetic separation system positioned before the heat exchangers. This extraction removes the precipitating substances that would otherwise clog the heat exchanger system, enabling continuous operation without downtime for cleaning or maintenance.
3Reliability
If belts are used in magnetic separation systems, then REE and HE separation is achieved, but frequent belt replacements increase operational cost by more than 50%
Solution Approach 1:
The patent inverts the conventional horizontal belt configuration by using a vertical drum configuration. This inversion eliminates the belt component entirely, replacing it with a vertical magnetic separation system where REEs and HEs are separated from condensates without requiring horizontal belts that are prone to dust collection and frequent replacement.
Solution Approach 2:
The patent eliminates the need for expensive, frequently replaced belts by using a vertical drum magnetic separation system. The vertical configuration allows for more durable, less maintenance-intensive operation, removing the need for disposable belt components that increase operational costs by more than 50% compared to non-belt-based applications.
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 significantly reduces the overall cost of geothermal energy production, enhances revenue through the sale of extracted elements, and minimizes capital costs by optimizing the extraction process, while also reducing greenhouse gas emissions by displacing fossil fuel generation.
Implementation Method 1
A magnetic force is applied to the condensate, the more paramagnetic elements holding to the belt as the belt passes away from the magnetic drum thus causing separation by paramagnetic properties
Implementation Method 2
A first force is applied by accelerating the condensate. A second force can be applied by applying a magnetic force to the condensate
Data Source
AI summary
The invention generally relates to the extraction of rare earth elements and heavy metals from geothermal fluids used in geothermal electrical production. The invention provides systems and methods for extracting these elements from hydrothermal products by the application of one or more forces that affect different components of a condensate differently.