Underground Cuboid Sulfur Storage With Modular Leachate Containment
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Solution Overview
Problem
Conventional underground sulfur storage systems face limitations such as reliance on specific geological formations, potential environmental risks, and limited storage capacity, which are exacerbated by geological instability and the need for long-distance transportation, making them economically unviable for storing sulfur byproducts from oil and gas operations.
Innovation Solution
A modular cuboid grid storage system using sulfur-based materials like Sulfur Extended Asphalt (SEA), Pre-cast Sulfur Concrete (PSC), and Sulfur-Asphalt-Sand (SAS) with flexible leachate collection pipes and sulfur cuboids, designed to adapt to subsidence and environmental conditions, ensuring safe and efficient storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If conventional underground storage systems use engineered caverns or salt domes, then large storage capacity is achieved, but reliance on specific geological formations and geological instability limits applicability and safety
Solution Approach 1:
The storage system is divided into modular units that can be independently constructed and arranged. Each module contains sulfur storage cells with individual liners and access points, allowing the system to be adapted to various site conditions while maintaining large overall storage capacity through modular expansion.
Solution Approach 2:
The above-ground modular storage system can be deployed in multiple locations without requiring specific geological formations. The standardized module design with flexible configurations enables universal application across different terrains and climates, eliminating dependence on salt domes or engineered caverns.
2Ease of operation
If sulfur is stored in above-ground tanks or transported via trucking or rail, then accessibility and flexibility are improved, but environmental risks and transportation emissions increase
Solution Approach 1:
The system converts the potential harm of above-ground storage by implementing multiple environmental protection layers including impermeable liners, leachate collection systems, and vapor management infrastructure. These features transform the storage system into an environmentally safe solution that prevents contamination while maintaining accessibility.
Solution Approach 2:
The modular above-ground structure serves as an intermediary between underground injection and end-use applications. It provides a controlled intermediate storage point that eliminates the need for repeated trucking or rail transport, reducing emissions while maintaining operational flexibility through multiple access points.
3Adaptability or versatility
If modular above-ground storage is used, then adaptability and reduced environmental risk are achieved, but storage capacity per unit area is reduced
Solution Approach 1:
The system transitions from two-dimensional surface storage to three-dimensional modular stacking. Modules can be vertically arranged and horizontally expanded, maximizing storage capacity while maintaining adaptability to site constraints. The modular design allows optimization of footprint versus height based on specific site conditions.
Solution Approach 2:
Multiple sulfur storage modules can be nested or arranged in configurations that optimize space utilization. The modular units can be positioned to create efficient use of available land area while maintaining access to all storage cells, effectively increasing capacity per unit area through strategic spatial arrangement.
4Volume of stationary object
If sulfur is stored in bulk without modular structure, then storage capacity is maximized, but safety and environmental protection are compromised
Solution Approach 1:
The storage system segments bulk sulfur into discrete modular units, each with its own containment liner and monitoring infrastructure. This segmentation maintains overall large storage capacity while improving safety through isolation of individual modules, allowing targeted response to any potential issues without compromising the entire storage system.
Solution Approach 2:
Each modular unit incorporates pre-installed environmental protection features including impermeable liners, leachate collection systems, and vapor management capabilities. These protective measures are built into the design before sulfur is stored, ensuring environmental protection and safety are inherent to the storage capacity rather than added later.
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 system provides a cost-effective, environmentally safe, and stable storage solution for sulfur byproducts, reducing transportation emissions and risks while utilizing sulfur as a structural material, enhancing storage capacity and adaptability to geological changes.
Implementation Method 1
base layer configured to flex
Implementation Method 2
leachate collection pipes arranged to form a grid of cells
Implementation Method 3
each cell is sealed with high strength sulfur
Implementation Method 4
sulfur-based materials like Sulfur Extended Asphalt (SEA), Pre-cast Sulfur Concrete (PSC), and Sulfur-Asphalt-Sand (SAS)
Data Source
AI summary
An underground storage unit for storing bulk sulfur includes a base layer comprising leachate collection pipes arranged to form a grid of cells, and high strength sulfur positioned at each cell, an intermediate layer comprising high strength sulfur side walls extending from a perimeter of the base layer, and bulk sulfur positioned on top of the base layer, a top layer positioned at an extent of the side walls and comprising a first sub-layer formed from high strength sulfur, a second sub-layer formed from a rigid moisture resistant material, and a third sub-layer formed from top soil, and one or more hatches positioned at the top layer that provide access to the bulk sulfur of the intermediate layer.