On-Demand Sulfur Trioxide Generation for Paraffin Removal
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Solution Overview
Problem
The transportation and handling of sulfur trioxide pose safety, environmental, and logistical challenges due to its tendency to form high-melting crystals and react with moisture, leading to the abandonment of previous technologies for paraffin removal in crude oil and natural gas pipelines.
Innovation Solution
A portable sulfur trioxide generating system that produces sulfur trioxide on-demand at the site using portable sources of sulfur and oxygen, a converter with a catalyst, and a heater to maintain temperatures above the crystallization point, eliminating the need for transportation and ensuring safety and environmental compliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sulfur trioxide is transported as solid or liquid to the well site, then paraffin removal treatment can be provided, but safety, environmental, and logistical challenges arise due to crystallization and moisture reaction
Solution Approach 1:
The patent extracts the harmful transportation and handling aspects of sulfur trioxide by removing it from the system entirely. Instead of transporting sulfur trioxide, the system generates it on-demand at the treatment location using sulfur and oxygen as feedstocks, thereby eliminating safety and environmental hazards associated with transportation while maintaining treatment reliability
Solution Approach 2:
The patent introduces sulfur and oxygen as intermediary substances that can be safely transported and stored. These intermediaries are then converted to sulfur trioxide at the treatment site through a controlled chemical reaction process, serving as a safe mediator that replaces the hazardous sulfur trioxide transportation while achieving the same treatment effect
2Object-affected harmful factors
If sulfur trioxide is generated on-demand at the well site, then safety and environmental compliance are improved, but system complexity and equipment requirements increase
Solution Approach 1:
The patent designs a multi-functional integrated system where a single apparatus performs multiple functions: sulfur storage, oxygen storage, heating, catalytic conversion, and sulfur trioxide dispensing. This universal system approach consolidates what could be separate complex subsystems into one coordinated unit, improving safety while managing complexity through functional integration
Solution Approach 2:
The system incorporates automatic temperature control and reaction management features that allow the generating apparatus to self-regulate the conversion process. The heater automatically maintains required temperatures, and the system self-manages the chemical reaction conditions, reducing the need for complex external control systems and operational complexity
3Quantity of substance
If sulfur trioxide is transported in large quantities, then treatment effectiveness is improved, but transportation costs and logistical requirements increase
Solution Approach 1:
The patent performs preliminary action by transporting and storing sulfur and oxygen at the well site before they are needed for treatment. These feedstock materials have long shelf lives and stable storage requirements, allowing them to be prepared in advance and stored on-site, eliminating the need for time-critical transportation of sulfur trioxide while ensuring adequate quantities are available for effective treatment
Solution Approach 2:
The patent replaces the mechanical transportation system for sulfur trioxide with a chemical generation system. Instead of using vehicles and logistics infrastructure to transport large quantities of sulfur trioxide, the system uses localized chemical synthesis to produce the required quantities on-demand, eliminating transportation time and logistical complexity while maintaining adequate treatment material availability
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 effectively generates and delivers sulfur trioxide for removing hydrocarbon contaminants like paraffins, waxes, and resins, preventing crystallization and ensuring safe, efficient operation without the need for EPA permits, thus addressing the previous challenges.
Implementation Method 1
a converter having an inlet fluidly or gaseously coupled to the portable sources of sulfur and oxygen, a cavity communicating with the inlet and containing a catalyst capable of catalyzing a reaction of sulfur and oxygen to generate sulfur trioxide
Implementation Method 2
a heater operable to heat sulfur or oxygen dispensed from the portable sources to a temperature sufficient for generating sulfur trioxide
Implementation Method 3
The present invention also relates to portable/transportable apparatuses, methods, and systems for removing hydrocarbon contaminants including waxes, paraffins, resins, and ashpaltenes from surfaces
Data Source
AI summary
The present invention, in general, relates to portable/transportable apparatuses, methods, and systems for generating and delivering sulfur trioxide on-site or near an item to be treated. The present invention also relates to portable/transportable apparatuses, methods, and systems for removing hydrocarbon contaminants including waxes, paraffins, resins, and ashpaltenes from surfaces and treating the surfaces to reduce hydrocarbon contaminant build-up on the surfaces.