Crosslinked Polyolefin Oil Recovery Gel Absorbent
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current absorbent materials for oil spills have limitations such as low oil absorption capacity, slow absorption kinetics, water absorption, and poor mechanical strength, making them ineffective for quickly collecting and retaining hydrocarbons, and they often require extensive treatment and disposal after use.
Innovation Solution
Crosslinked polyolefins with a lightly cross-linked network structure and amorphous morphology, which absorb hydrocarbons to form a gel that can be easily collected and processed, minimizing water absorption and allowing for efficient oil recovery and recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If inorganic mineral products or organic vegetable products are used for oil absorption, then the materials can be readily available and cost-effective, but they show limited oil absorption capacity and absorb water, making them unsuitable for calcination and requiring land filling after use
Solution Approach 1:
The patent transforms the absorption mechanism from physical adsorption to chemical absorption by modifying the polymer structure. Cross-linking the polyolefin creates a three-dimensional network that enables chemical absorption of hydrocarbons, fundamentally changing how the material interacts with oil compared to traditional physical adsorption materials.
Solution Approach 2:
The invention creates a composite structure by cross-linking polyolefin chains to form a gel-like network. This cross-linked polyolefin combines the hydrophobicity of polyolefin with the absorption capacity of a three-dimensional network structure, achieving both high oil absorption and resistance to water absorption.
2Reliability
If synthetic resins such as cross-linked styrenic and acrylic copolymers are used, then selective oil absorption and good oil-maintaining properties are achieved, but the absorbing time is long compared to fibers, especially for high viscosity oil
Solution Approach 1:
The patent modifies the polymer structure by cross-linking polyolefin to create a gel network that enhances absorption kinetics. This structural change allows the material to rapidly absorb high viscosity oil while maintaining the selective absorption properties, significantly reducing the absorbing time compared to uncross-linked resins.
3Stability of the object's composition
If cross-linking is applied to synthetic resins to prevent dissolution in oils, then the polymer integrity is maintained, but the absorbing speed for high viscosity oil remains slow and aggregation occurs
Solution Approach 1:
The patent optimizes the cross-linking density and polymer structure to balance integrity and absorption speed. By controlling the cross-linking parameters and using polyolefin with specific molecular weight and architecture, the material maintains polymer integrity while achieving rapid absorption of high viscosity oil without aggregation.
Solution Approach 2:
The cross-linked polyolefin structure creates local hydrophobic domains within the gel network that facilitate rapid oil penetration. The cross-linked structure provides local integrity while the gel network architecture enables fast mass transport, resolving the contradiction between stability and productivity.
4Loss of time
If fiber-based sorbers are used for oil recovery, then fast absorption kinetics are achieved, but the weak oil-substrate interaction causes failure to maintain low viscosity oil and easy re-bleeding under external force
Solution Approach 1:
The patent creates a composite gel structure by cross-linking polyolefin chains, combining the fast kinetics of fibrous materials with the strong interaction of cross-linked networks. This gel structure maintains oil through strong hydrophobic interactions while preserving rapid absorption kinetics, eliminating re-bleeding under external force.
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 crosslinked polyolefins demonstrate high oil absorption capacity, fast sorption kinetics, buoyancy, and mechanical strength, enabling effective oil recovery and treatment as a regular refining process, while minimizing waste and environmental impact.
Implementation Method 1
absorption is the penetration of molecules to the bulk phase of the material and typically results in the oil contained within the absorbent material. Affinity between the oil and absorbent material drives oil molecules into the absorbent matrix.
Implementation Method 2
the crosslinked polyolefin absorbs the hydrocarbon to form a gel
Implementation Method 3
Cross-linking of such materials is required to maintain the integrity of the absorbent and prevent its dissolution into the oil.
Implementation Method 4
the crosslinked polyolefin... demonstrate high oil absorption capacity, fast sorption kinetics, buoyancy, and mechanical strength
Data Source
AI summary
Crosslinked polyolefins for use in recovering or containing hydrocarbons such as hydrocarbons contained in oil, are disclosed. Advantageously, the crosslinked polyolefins absorb the hydrocarbon to form a gel that can be collected and processed by heat to release the collected hydrocarbons.