Blending Bitumen Extraction Products for Pipeline Transport
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Solution Overview
Problem
Traditional bitumen extraction facilities face inefficiencies and high costs when handling different solvents used as carrier mediums for bitumen, as existing solutions require separate infrastructure, additional distillation steps, and increased CO2 emissions, which also lead to asphaltene precipitation issues.
Innovation Solution
A method involving blending bitumen extraction products from aromatic and paraffinic solvents to create a single composition that can be transported through existing infrastructure, minimizing capital and operating expenditures, reducing CO2 emissions, and preventing asphaltene precipitation by maintaining the aromatic solvent in the blended composition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate infrastructure is provided for handling bitumen-laden aromatic solvent and bitumen-laden paraffinic solvent, then each solvent type can be processed independently, but capital expenditures and system complexity increase significantly
Solution Approach 1:
The patent merges the processing of bitumen-laden aromatic solvent and bitumen-laden paraffinic solvent into a single integrated system. The blending unit combines both solvent types with bitumen to form a homogeneous mixture that can be transported through common pipelines and processed in shared facilities, eliminating the need for separate infrastructure while maintaining processing capability for both solvent types.
Solution Approach 2:
The patent creates a universal processing system that can handle multiple solvent types (aromatic and paraffinic) simultaneously through a single infrastructure. The blending unit and common pipelines are designed to accommodate both solvent types, making the system multi-functional and eliminating the need for dedicated equipment for each solvent type.
2Stability of the object's composition
If bitumen is separated from aromatic solvent and then mixed with paraffinic solvent, then bitumen can be joined with bitumen-laden paraffinic solvent, but operating costs increase and CO2 emissions increase due to additional distillation steps
Solution Approach 1:
The patent maintains continuous blending of aromatic solvent, paraffinic solvent, and bitumen without interrupting the process for separation and re-mixing. This continuous operation eliminates the need for energy-intensive distillation steps while maintaining composition uniformity through controlled blending, thereby reducing energy consumption and CO2 emissions.
Solution Approach 2:
The patent changes the approach from separation-based processing to blending-based processing. By adjusting the blending ratios and maintaining appropriate composition parameters, the system achieves uniform bitumen composition without requiring energy-intensive separation and recombination steps, thus reducing energy consumption and emissions.
3Ease of operation
If bitumen separated from aromatic solvent is added to paraffinic solvent, then bitumen can be transported through paraffinic solvent infrastructure, but asphaltene precipitation occurs leading to equipment clogging
Solution Approach 1:
The patent uses aromatic solvent as an intermediary that prevents asphaltene precipitation. By maintaining aromatic solvent in the blended composition, it acts as a mediator that keeps asphaltenes in solution, allowing bitumen to be transported through paraffinic solvent infrastructure without causing equipment clogging, thus maintaining both transportation capability and equipment reliability.
4Adaptability or versatility
If operating existing equipment in shifts for different solvents is implemented, then infrastructure can be reused, but overall facility operating rate decreases and expense increases
Solution Approach 1:
The patent merges the processing of different solvent types into simultaneous operations rather than sequential shift-based processing. By blending aromatic and paraffinic solvents together with bitumen in a unified system, the facility can process both solvent types concurrently, maintaining high operating rates while preserving infrastructure flexibility to handle various solvent compositions.
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 allows for economical and efficient transportation and processing of bitumen using existing facilities, avoiding separate distillation steps and reducing environmental impact while maintaining pipeline specifications and preventing asphaltene precipitation.
Implementation Method 1
the bitumen carried by the aromatic solvent includes asphaltenes. If the bitumen were separated from the aromatic solvent and then added to paraffinic solvent, the asphaltene content would precipitate and could lead to equipment clogging and other issues. However, when the bitumen material remains with the aromatic solvent, the subsequent addition to the bitumen-laden paraffinic solvent does not result in asphaltene precipitation due to the continuing presence of the aromatic solvent in the blended composition.
Data Source
AI summary
Methods for transporting bitumen extraction product include providing bitumen-laden aromatic solvent, providing bitumen-laden paraffinic solvent, and blending the two materials. The resulting mixture can be transported through existing pipeline infrastructure and can use existing separation processing equipment, and thereby avoids the need for separate infrastructure for each composition. Combining the two compositions can also avoid undesirable asphaltene precipitation.