Cyclic Alkylene Urea Process Reactant Addition Control
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Solution Overview
Problem
Current methods for producing cyclic alkylene amines lack control and selectivity in reactant conversions, leading to inefficient production processes.
Innovation Solution
A process involving the continuous, semi-continuous, or batch-wise addition of cyclic alkylene carbamate and alkanolamine reactants to a reaction zone containing cyclic alkylene urea and alkylene amine reactants, in the presence of a carbonyl delivering agent, to improve control and selectivity in producing cyclic alkylene urea products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If all reactants are added at once in a single batch, then the process is simple to operate, but the conversion control and product selectivity are poor
Solution Approach 1:
The patent divides the reactant addition process into multiple batches or continuous streams, adding cyclic alkylene carbamate and alkanolamine reactants incrementally to the reaction zone containing cyclic alkylene urea and alkylene amine reactants. This segmentation of the addition process enables better control over reactant conversions and product selectivity while maintaining operational feasibility
Solution Approach 2:
The patent implements dynamic control of the reaction process by adjusting the rate and ratio of reactant addition continuously or semi-continuously. This dynamic approach allows optimization of conversion and selectivity parameters during the reaction, moving from static single-batch addition to a flexible, controllable process
2Manufacturing precision
If reactants are added continuously or in multiple batches, then conversion control and product selectivity improve, but the process complexity increases
Solution Approach 1:
The patent segments the reactant addition into manageable batches or continuous streams, which can be controlled using standard process equipment. This segmentation achieves better conversion control and selectivity without requiring overly complex systems, as each batch or stream can be managed independently with conventional control methods
3Object-generated harmful factors
If cyclic alkylene carbamate and alkanolamine are added in controlled amounts, then unwanted byproducts are reduced, but the process time and monitoring requirements increase
Solution Approach 1:
The patent specifies predetermined ratios and amounts of cyclic alkylene carbamate and alkanolamine reactants to be added based on the initial amounts of cyclic alkylene urea and alkylene amine reactants. This preliminary determination of addition rates and ratios minimizes unwanted byproducts from the outset, reducing the need for extended monitoring and correction processes
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 approach enhances the yield and selectivity of cyclic alkylene urea products and corresponding alkylene amines by controlling the rate and ratio of reactant addition, reducing unwanted byproducts and improving overall conversion efficiency.
Implementation Method 1
A process is provided for producing a cyclic alkylene urea product from an alkyleneamine and/or cyclic alkylene urea reactant and an alkanolamine and/or cyclic alkylene carbamate reactant, wherein the cyclic alkylene carbamate reactant and/or the alkanolamine reactant are added to a reaction zone comprising a cyclic alkylene urea reactant and/or an alkylene amine reactant
Data Source
AI summary
A process for producing a cyclic alkylene urea product of Formula I:in which a compound of Formula II and/or Formula III is contacted in a reaction zone with a compound of Formula IV and/or Formula V and in the presence of one or more carbonyl delivering compounds;wherein the compound of Formula II and/or the compound of Formula III are added to a reaction zone comprising compound of Formula IV and/or compound of Formula (V) continuously or semi-continuously over a period of time, or in two or more batches.