Dual Catalyst System for 1-Octanol Yield
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Solution Overview
Problem
Existing methods for producing high molecular weight alcohols like 1-octanol from ethanol and n-hexanol yield lower amounts of 1-octanol, with inefficiencies in catalysts used separately and suboptimal reaction conditions.
Innovation Solution
A method using two catalysts, one comprising Ga and a noble metal, and the other comprising Ni or Cu, in a combined system to enhance the production of 1-octanol from ethanol and n-hexanol, operating at lower pressures and temperatures, and reducing the need for noble metal quantity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single catalyst is used for producing 1-octanol from ethanol and n-hexanol, then the catalyst structure is simple, but the yield and selectivity for 1-octanol are low
Solution Approach 1:
The patent combines two separate catalysts (catalyst A with Ga and noble metal, catalyst B with Cu or Ni) into a dual-catalyst system to simultaneously achieve high yield and high selectivity for 1-octanol production, resolving the contradiction between productivity and device complexity
2Temperature
If conventional catalysts are used for 1-octanol production, then the catalyst composition is simple, but the reaction requires high pressure and temperature
Solution Approach 1:
The patent employs composite catalyst materials with specific compositions (catalyst A: Ga + noble metal; catalyst B: Cu or Ni) that enable the reaction to proceed at lower temperatures and pressures while maintaining high catalytic performance and reliability
3Manufacturing precision
If conventional methods are used for 1-octanol synthesis, then the process is simple, but the selectivity for linear alcohols is low and branched alcohols are produced
Solution Approach 1:
The combination of catalyst A (Ga + noble metal) and catalyst B (Cu or Ni) creates a synergistic effect that significantly improves selectivity for linear 1-octanol while minimizing branched alcohol byproducts, overcoming the limitation of single catalyst systems
4Productivity
If high yield of 1-octanol is achieved with conventional catalysts, then productivity is high, but the quantity of noble metal required is large
Solution Approach 1:
The patent applies noble metal only in catalyst A with specific Ga-containing composition, while catalyst B uses base metals (Cu or Ni), creating a localized distribution of expensive noble metal that reduces overall noble metal quantity while maintaining high productivity
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 combined catalyst system achieves higher yields and selectivity for linear alcohols, reducing branched alcohols and catalyst mass, while operating efficiently at lower pressures and temperatures.
Implementation Method 1
a method for producing 1-octanol from ethanol and n-hexanol in the presence of two catalysts A and B, two catalysts based on metal oxide wherein A comprises Ga and a noble metal and wherein B comprises Ni, Cu or any mixture thereof
Data Source
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AI summary
The present invention relates to a method for producing 1-octanol comprising a contact step between ethanol, n-hexanol and two catalysts A and B, wherein catalyst A comprises a metal oxide comprising Ga and a noble metal and catalyst B comprises a metal oxide comprising Cu, Ni or any mixture thereof.