Phosphine-Borane CO2 Capture Compounds for Stable Carbon Binding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current carbon capture and storage technologies face challenges in ensuring safe, permanent storage and require significant renewable energy and infrastructure investment, making effective CO2 capture and recycling difficult.
Innovation Solution
Phosphorous-boron bonded compounds, such as phosphine-boranes, cyclic phosphine-boranes, and phosphine-borane salts, are developed to capture CO2 with high affinity and tunability, forming stable complexes with CO2 and allowing for conversion into useful products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional CCS technologies are used for CO2 capture and storage, then CO2 can be captured and stored, but significant renewable energy and infrastructure investment are required, making the process complex and costly
Solution Approach 1:
The patent modifies the chemical parameters of CO2 capture agents by introducing phosphorous-boron bonded compounds with specific pKa values (5≤pKa≤25) to enhance CO2 binding affinity. This chemical parameter optimization enables more effective capture with reduced infrastructure complexity compared to conventional amines
Solution Approach 2:
The invention employs composite molecular structures combining phosphorous and boron elements to create phosphine-borane compounds that exhibit synergistic properties for CO2 capture. These composite molecules provide both high affinity binding and tunable reactivity, reducing the need for complex infrastructure systems
2Reliability
If phosphorous-boron bonded compounds are used for CO2 capture, then high affinity and tunability are achieved, but the compounds must be designed with specific substituents to optimize performance
Solution Approach 1:
The patent systematically varies substituent parameters (R1-R9 groups) on the phosphorous-boron core to optimize CO2 binding affinity and reactivity. By controlling pKa values and substituent types, the invention achieves high capture efficiency while maintaining manageable synthesis complexity through modular design
Solution Approach 2:
The invention applies different substituent types to specific positions on the phosphorous-boron molecule to create localized functional regions. This allows optimization of specific properties (binding affinity at phosphorus, reactivity at boron) while keeping the overall synthesis process manageable through targeted modification rather than complete redesign
3Productivity
If phosphorous-boron bonded compounds with specific pKa values are used, then CO2 capture efficiency is improved, but the compounds exhibit enhanced reactivity that must be controlled
Solution Approach 1:
The patent precisely controls the pKa parameter of the phosphorous-boron compound (5≤pKa≤25) to balance CO2 capture efficiency with reactivity control. This parameter optimization ensures high productivity in CO2 capture while maintaining sufficient stability for safe handling and storage
Solution Approach 2:
The phosphorous-boron compound acts as an intermediary that mediates between CO2 and the desired products. The controlled reactivity of these compounds allows them to selectively bind CO2 and facilitate conversion to useful products while preventing unwanted side reactions, thus controlling overall system reliability
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
These compounds enable efficient CO2 capture and conversion with ΔG values less than −5 kcal/mol, facilitating applications in carbon capture, utilization, and storage (CCUS), including direct air capture and industrial flue gas treatment, with tunable properties for specific capture needs.
Implementation Method 1
phosphorous-boron bonded compounds which are configured for capturing CO2 with high affinity... forming stable complexes with CO2
Implementation Method 2
The phosphorous-boron bonded compounds herein described and related products, compositions, methods and systems, allow in several embodiments capturing storing and/or utilizing carbon dioxide... capturing the carbon dioxide from a target environment using one or more phosphorous boron-bonded compounds
Data Source
AI summary
Provided herein phosphorous-boron bonded compounds which are configured for capturing CO2 with high affinity and tunability to specific CO2 capture needs and related products, compositions, methods and systems for capturing storing and/or utilizing carbon dioxide.