Heterogeneous Catalyst Biosolvent Production via Inter-esterification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for producing biosolvents from vegetable oil or animal fat are inefficient, requiring separation of residual reactants and catalysts, and are limited by the stability and cost of catalysts, as well as the need for high-pressure and temperature conditions, which complicates the process and reduces yield.
Innovation Solution
A process using a heterogeneous catalyst, KEYCAT-01, to produce basic biosolvents through inter-esterification and esterification reactions at sub-critical conditions, allowing for continuous operation and eliminating the need for separating residual reactants, with the ability to formulate various biosolvents by adjusting component ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If heterogeneous catalysts are used in esterification reactions to produce biosolvents, then catalytic activity and reaction efficiency are improved, but catalyst stability and reusability deteriorate due to deactivation at high temperatures
Solution Approach 1:
The catalyst system is segmented into a solid support structure (macroporous resin or silica gel) and dispersed active sites (sulfonic acid groups), allowing the catalyst to maintain structural integrity while providing high surface area for reaction. This segmentation enables the catalyst to withstand reaction conditions without deactivation.
Solution Approach 2:
The patent introduces an extraction solvent phase (methyl ester of fatty acids) as an intermediary that facilitates product removal from the reaction zone. This intermediary system shifts the equilibrium toward product formation, allowing the use of milder reaction conditions that preserve catalyst stability while maintaining high productivity.
2Productivity
If extraction solvent is added to increase ethyl lactate yield, then reaction efficiency is improved, but process complexity increases due to additional separation requirements
Solution Approach 1:
The extraction solvent (methyl ester of fatty acids) serves multiple functions simultaneously: it acts as a reaction medium, shifts equilibrium to increase yield, and functions as a biosolvent component in the final product. This multi-functionality eliminates the need for separate extraction and purification steps, reducing process complexity while maintaining high productivity.
Solution Approach 2:
The reaction and extraction phases are merged into a single continuous process where the extraction solvent is present throughout the reaction. This merging of functions allows product formation and phase separation to occur simultaneously, eliminating additional separation equipment and simplifying the overall process.
3Ease of operation
If interrupted batch reaction devices are used, then flexibility in operation is improved, but productivity deteriorates due to repeated start-stop operations and longer reaction times
Solution Approach 1:
The patent implements a continuous flow reactor system where reactants are continuously fed through the catalyst bed and products are continuously removed. This continuous operation eliminates idle time between batches, maintains constant reaction conditions, and significantly increases production rate while preserving operational flexibility through adjustable flow rates.
Solution Approach 2:
The system transitions from static batch operation to dynamic continuous flow operation, allowing real-time adjustment of residence time, flow rates, and temperature profiles. This dynamic operation optimizes both productivity and operational flexibility by adapting process parameters to production requirements.
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 efficiently produces high-yield basic biosolvents from inedible vegetable oil or animal fat, enabling the creation of diverse biosolvent compositions suitable for ecological and human health safety, applicable in various industries without the need for complex separation stages.
Implementation Method 1
A process using a heterogeneous catalyst, KEYCAT-01, to produce basic biosolvents through inter-esterification and esterification reactions
Implementation Method 2
reactions at sub-critical conditions, allowing for continuous operation
Data Source
AI summary
The present invention relates to a process for the production of basic biosolvents derived from inedible vegetable oil or animal fat or waste fatty acid composition by one-pot reaction between inedible vegetable oil or animal fat or waste fatty acid, and at least one ester of short-chain organic acid having 2, 3 or 5 carbon atoms, derived from biomass, in the presence of heterogeneous catalysts. In addition, the invention also relates to basic biosolvents, comprising alkyl esters of fatty acid, trieste of glycerin, esters of short-chain organic acids having 2, 3 or 5 carbon atoms, suitable for preparing many types of biosolvents, depending on application requirements.