Cryogenic Fluid Oil Spill Remediation via Phase Transition
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Solution Overview
Problem
Current methods for oil spill cleanup are inefficient due to the immiscibility, viscosity, and toxicity of oil, which makes it difficult to handle and remove from water bodies and surrounding environments, leading to significant environmental and ecological impacts.
Innovation Solution
The use of buoyant immiscible pollutant remediation apparatus employing condensed phase cryogenic fluids (CPCF) like liquefied nitrogen or air to freeze and solidify oil spills, facilitating their removal through viscous agglomeration, accretion, and sequestration by lattice uptake, without introducing non-native substances to the environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional cleanup methods (skimmers, booms, dispersants) are used, then oil spill cleanup is attempted, but the methods are inefficient and cause environmental harm due to oil's immiscibility, viscosity, and toxicity
Solution Approach 1:
The patent applies phase transitions by freezing the oil spill using cryogenic fluids (liquid nitrogen or air), transforming the oil from a liquid to a solid state. This phase change enables the oil to be contained and removed more effectively, addressing the inefficiency of conventional liquid-handling methods while minimizing environmental harm through natural freezing processes
Solution Approach 2:
The patent changes the temperature parameter of the oil spill by applying cryogenic fluids, reducing the temperature to below freezing point. This parameter change fundamentally alters the oil's physical properties, making it manageable and removable, thereby improving cleanup efficiency without introducing harmful chemicals
2Ease of operation
If cryogenic fluids are used to freeze oil, then the oil transforms to a manageable solid form for removal, but the process requires specialized equipment and cold storage facilities
Solution Approach 1:
The patent employs self-service by using ambient air or liquid nitrogen that can be stored in standard cryogenic tanks, eliminating the need for complex on-site cryogenic generation equipment. The system leverages readily available cold sources to achieve the freezing effect, simplifying operational requirements while maintaining oil manageability
Solution Approach 2:
The patent uses liquid nitrogen or compressed air as intermediary substances to transfer cold energy to the oil spill. These intermediaries act as heat transfer mediators, enabling the freezing process without requiring direct contact between the oil and extreme cold sources, thereby reducing equipment complexity
3Productivity
If dispersants are applied to oil spills, then the oil is mixed with water, but insufficient wave action prevents effective mixing and degradation products are created
Solution Approach 1:
Instead of chemically mixing oil with water using dispersants, the patent physically separates and removes the oil by freezing it into a solid state. This phase transition approach eliminates the need for chemical dispersants and their associated degradation byproducts, while maintaining effective oil removal through mechanical containment and removal of frozen oil
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 transforms oil into a manageable solid form for removal, minimizing environmental disruption and ensuring environmental neutrality by using naturally occurring cryogenic fluids, thus enhancing the efficiency and sustainability of oil spill cleanup operations.
Implementation Method 1
The use of buoyant immiscible pollutant remediation apparatus employing condensed phase cryogenic fluids (CPCF) like liquefied nitrogen or air to freeze and solidify oil spills
Data Source
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AI summary
Systems, methods and apparatus are provided for utilizing a substantially condensed phase cryogenic fluid for the purpose of remediation and retrieval of, e.g., spilled crude oil and other "oil spill"-related products from marine/aquatic and terrestrial environments. In some implementations, systems and apparatus are provided for applying a substantially condensed phase cryogenic fluid to a volume of spilled oil, and further having structure (109) for collecting the spilled oil (107). Some implementations are environmentally-neutral. Substances other than oil may be remediated as well.