Ethylene Oligomerization Catalyst Productivity
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Solution Overview
Problem
Current processes for producing alpha olefins through ethylene oligomerization lack efficiency and innovation, necessitating the development of novel and improved catalyst systems to meet increasing demand.
Innovation Solution
A process involving the introduction of ethylene into a reaction zone with a heteroatomic ligand metal salt complex, specifically using iron or cobalt salts, and an organoaluminum compound, with optional hydrogen and organic reaction medium, to form an oligomer product, enhancing catalyst productivity and activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional catalyst systems are used for ethylene oligomerization, then the process can operate with established technology, but the productivity and activity are insufficient to meet growing demand
Solution Approach 1:
The patent applies parameter changes by modifying the catalyst system composition - specifically using heteroatomic ligands (N, O, S, P containing) complexed with metal salts (Fe, Co, Ni, Cu, Mn, Zn) in combination with organoaluminum compounds. This chemical parameter modification enhances both catalyst productivity and activity compared to conventional systems
Solution Approach 2:
The patent employs composite materials by creating a multi-component catalyst system that combines heteroatomic ligands, metal salts, and organoaluminum compounds. This composite approach synergistically improves catalyst performance, achieving higher productivity while maintaining reliable activity
2Productivity
If existing catalyst systems are used, then the process design is proven and reliable, but additional novel and improved catalyst systems are needed to intensify competition and meet multiplying demand
Solution Approach 1:
The patent modifies catalyst system parameters by introducing heteroatomic ligands with specific donor atoms (N, O, S, P) complexed to various metal salts. This parameter change enhances oligomerization efficiency without requiring complex process equipment modifications
Solution Approach 2:
The heteroatomic ligands act as intermediaries between the metal salt and organoaluminum compound, facilitating improved catalyst performance. The ligand mediates the interaction to achieve higher productivity while maintaining manageable system complexity
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 process improves the productivity and activity of catalyst systems for alpha olefin production, addressing the need for more efficient ethylene oligomerization and meeting the growing demand for these chemicals.
Implementation Method 1
a heteroatomic ligand metal salt complex comprising a heteroatomic ligand complexed to a first metal salt where the first metal salt is an iron salt, a cobalt salt, or a combination thereof
Implementation Method 2
an organoaluminum compound
Data Source
AI summary
Disclosed herein is a process for forming an oligomer product comprising (a) introducing into a reaction zone (i) ethylene; (ii) a heteroatomic ligand metal salt complex comprising a heteroatomic ligand complexed to a first metal salt; (iii) a second metal salt wherein an equivalent molar ratio of the second metal salt to the heteroatomic ligand of the heteroatomic ligand metal salt complex is at least 0.5:1 and where the second metal salt is an iron salt, a cobalt salt, or any combination thereof; (iv) an organoaluminum compound; and (b) forming an oligomer product. Also disclosed herein is a process comprising (a) introducing into a reaction zone (i) ethylene; (ii) a heteroatomic ligand; (iii) a metal salt where an equivalent molar ratio of the metal salt to the heteroatomic ligand is at least 1.5:1; (iv) an organoaluminum compound; and (b) forming an oligomer product.