Insulative Permeable Layer Vapor Condensation
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Solution Overview
Problem
Current methods for recovering hydrocarbons from hydrocarbonaceous materials face challenges in efficiently collecting and condensing vapors released during the heating process within an enclosed volume, as existing systems are not optimized for maximum vapor recovery and condensation.
Innovation Solution
A system utilizing a heated enclosed space surrounded by an insulative permeable earthen material layer with a temperature gradient, allowing vapors to pass through and condense as they move from the inner to the outer surface, with condensed liquids collected at the bottom and an optional impermeable outer layer to prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vapors are removed by passage through conduits, pipes or vents from designated positions within the enclosed volume, then vapor collection is achieved, but vapor recovery efficiency is insufficient and system complexity increases
Solution Approach 1:
The patent extracts the condensation function from the enclosed processing volume by introducing a separate insulative permeable layer surrounding the volume. This layer acts as an external condensation system where vapors pass through the enclosure walls into the insulative material, condense, and collect in a sump. This separates the heating/processing function from the condensation/collection function, improving vapor recovery efficiency while avoiding complex internal conduit systems.
Solution Approach 2:
The insulative permeable layer serves as an intermediary between the hot enclosed volume and the external environment. It allows vapors to pass through while providing a temperature gradient that facilitates condensation. The layer acts as a mediator that transforms vapors from the high-temperature processing zone into condensable form without requiring direct contact with cooling surfaces or complex piping.
2Productivity
If the insulative layer is made permeable to allow vapor passage, then vapor condensation is improved, but liquid drainage capability must be maintained
Solution Approach 1:
The insulative permeable layer exhibits different functional properties at different locations: in the upper portion where vapors enter, the material provides thermal insulation and vapor permeability to enable condensation; in the lower portion near the sump, the layer provides liquid drainage pathways. This spatial variation in functional quality allows simultaneous achievement of vapor condensation and liquid drainage without compromising either function.
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 effectively enhances vapor recovery and condensation, creating a positive pressure that drives continuous vapor withdrawal and collection, improving the overall efficiency of hydrocarbon extraction and processing.
Implementation Method 1
an insulative particulate layer of earthen material having a temperature gradient with decreasing temperature from the inner layer surface to the outer layer surface
Implementation Method 2
While in the insulative particulate layer, the vapors contact the particulate earthen material and are also subjected to lowering of the temperature across the temperature gradient. As a result the vapors condense
Implementation Method 3
A material is placed within the enclosed space and heated to produce vapors
Implementation Method 4
Due to the heating of the material and formation of vapors, a positive pressure is developed within the enclosed space
Implementation Method 5
The insulative layer is permeable to vapors... the vapors that are not liquefied pass through the inner surface of the insulative particulate layer and move toward the outer surface
Implementation Method 6
An optional impermeable outer covering, such as bentonite amended soil, may encapsulate or enclose the insulative particulate layer
Data Source
AI summary
A method for removal and condensation of vapors from within an enclosed space (120) is disclosed. An enclosed space (120) containing material (110) is surrounded by an insulative permeable layer (130) having a lowering temperature gradient (230) between the inner surface (220) and the outer surfaces (240). The insulative layer (130) may also be covered by an impermeable layer (140). Heating the material (110) in the enclosed space (120) causes the formation of vapors at a positive pressure within the enclosed space (120). Vapors pass through the inner surface (220) of the insulative permeable layer (130) and contact the permeable materials and are condensed by the lowering temperature within the insulative layer (130). The condensate liquid passes downwardly through the insulative layer (130) for collection. The positive pressure within the heated enclosed space (120) and the condensation and lowering of pressure and temperature within the insulative layer (130) serves to draw additional vapors from within the enclosed space (120) into the insulative layer (130) for condensation and collection.