Composite Solid Base Catalyst for Glycidol Synthesis
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Solution Overview
Problem
Homogeneous base catalysts used in petrochemical processes are difficult to reuse due to the need for costly purification steps, which lead to increased manufacturing costs and environmental burdens from wastewater and energy consumption.
Innovation Solution
A composite solid base catalyst comprising an aluminum carrier and calcium particles, supported by the aluminum carrier, is developed, allowing for easier separation and reuse, with a manufacturing method involving titration, ripening, and calcination steps to enhance reactivity and stability, and applied in the synthesis of glycidol.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If homogeneous base catalysts are used to catalyze chemical reactions, then reaction rate and selectivity are improved, but purification steps are required after the reaction which increases manufacturing cost and causes environmental burden
Solution Approach 1:
The catalyst is segmented into heterogeneous form with distinct solid base catalyst particles that can be physically separated from the liquid reaction mixture, eliminating the need for complex purification steps while maintaining high catalytic activity
Solution Approach 2:
A solid support material serves as an intermediary carrier for the base catalyst, allowing the catalyst to maintain its catalytic function while being easily separable from the reaction mixture through simple filtration or decantation
2Reliability
If homogeneous base catalysts are used to catalyze chemical reactions, then high activity and selectivity are achieved, but the catalyst cannot be reused without costly purification
Solution Approach 1:
The catalyst is divided into discrete solid particles that can be separated from the reaction mixture and reused across multiple cycles, transforming a single-use homogeneous catalyst into a reusable heterogeneous catalyst
Solution Approach 2:
The solid base catalyst is recovered from the reaction mixture after the reaction completes and can be reused in subsequent reactions, eliminating the need for costly purification and enabling catalyst recycling
3Manufacturing precision
If purification steps are performed to separate product from homogeneous base catalyst, then product purity is improved, but wastewater and energy consumption increase
Solution Approach 1:
The catalyst is segmented into solid particles that can be separated from the liquid product through simple physical methods, eliminating the need for energy-intensive purification processes while maintaining product purity
Solution Approach 2:
The solid base catalyst is extracted from the reaction mixture using simple filtration or decantation, eliminating the need for complex purification steps that would consume excessive energy and produce wastewater
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 composite solid base catalyst enables efficient catalysis of glycidol synthesis with high selectivity and stability, reducing the need for costly purification and minimizing environmental impact by allowing for easy separation and reuse of the catalyst.
Implementation Method 1
a composite solid base catalyst includes an aluminum carrier and a plurality of calcium particles. The plurality of calcium particles are supported by the aluminum carrier. Beta basic sites of the composite solid base catalyst are 0.58 mmol/g-3.89 mmol/g
Implementation Method 2
In the calcination step, the catalyst precursor is heated, so as to obtain the composite solid base catalyst
Implementation Method 3
In the titrating step, a potassium hydroxide solution is titrated with the reactant solution, so as to form a stock solution
Data Source
AI summary
A composite solid base catalyst, a manufacturing method thereof and a manufacturing method of glycidol are provided. The composite solid base catalyst includes an aluminum carrier and a plurality of calcium particles. The plurality of calcium particles are supported by the aluminum carrier. Beta basic sites of the composite solid base catalyst are 0.58 mmol/g-3.89 mmol/g.