CuO-SiO2 Catalyst Composition for Stable Neopentyl Glycol Yield
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Solution Overview
Problem
Existing catalysts for preparing neopentyl glycol suffer from decreased strength and stability under high temperature and high pressure conditions, leading to process instability and catalyst support elution, which affects productivity.
Innovation Solution
A catalyst comprising a support, a fiber-based binder, and a specific weight ratio of CuO to SiO2, prepared through a method involving coprecipitation, drying, and coating with an aqueous alcohol solution, enhances catalyst strength and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high temperature (130°C or higher) and high pressure (35 bar or higher) conditions are used to obtain high yield, then neopentyl glycol yield is improved, but catalyst strength decreases
Solution Approach 1:
The patent uses a composite catalyst structure consisting of CuO particles supported on a porous support material with specific surface area (500-1000 m²/g). The composite structure combines the high catalytic activity of CuO with the mechanical strength and thermal stability of the support, enabling the catalyst to maintain its strength under high temperature and pressure conditions while achieving high neopentyl glycol yield.
Solution Approach 2:
The patent optimizes specific parameters including CuO content (10-30 wt%), support surface area (500-1000 m²/g), and pore volume (0.3-0.6 mL/g) to achieve the optimal balance between catalytic activity and mechanical strength. These parameter changes enable the catalyst to withstand high temperature and pressure while maintaining high productivity.
2Productivity
If high temperature and high pressure conditions are used, then reaction efficiency is improved, but catalyst support components are eluted causing physical crushing
Solution Approach 1:
The patent employs a porous support material with specific surface area of 500-1000 m²/g and pore volume of 0.3-0.6 mL/g. The porous structure provides high surface area for CuO dispersion, enhancing catalytic activity, while the controlled pore size and wall strength prevent support elution and physical crushing under high temperature and pressure conditions.
Solution Approach 2:
The patent creates local quality differences by concentrating CuO particles on the surface and within the pores of the support material. This localized distribution ensures high catalytic activity at the reaction sites while the bulk support structure maintains mechanical integrity and prevents elution under harsh reaction conditions.
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 catalyst maintains high activity and stability in high-temperature and high-pressure reactions, increasing neopentyl glycol yield and process stability, thereby improving productivity.
Implementation Method 1
the reaction is carried out in the presence of a copper-based catalyst under high temperature (130°C or higher) and high pressure (35 bar or higher) conditions
Implementation Method 2
preparing a coprecipitate including a copper (Cu) precursor and a silica (SiO2) sol
Data Source
Figure 1
AI summary
The present invention provides a catalyst for preparing neopentyl glycol and a method for preparing a catalyst for preparing neopentyl glycol. The catalyst for preparing neopentyl glycol according to the present invention is characterized by improving the strength, reactivity and stability of the catalyst by controlling the weight ratio of Cu and Si and the content of CuO measured by XRD analysis. Since the catalyst for preparing neopentyl glycol of the present invention may improve the strength of the catalyst and may maintain the activity of the catalyst even in a high-temperature and high-pressure reaction, it is possible to increase the stability of the process, and the yield of neopentyl glycol is high.