IZM-2 Zeolite Catalyst for Hydrocarbon Transformation
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Solution Overview
Problem
The refining and petrochemical industry seeks novel zeolitic structures with specific properties for applications like hydrocarbon transformation, purification, and separation, as existing zeolites lack optimal stability and acidity for efficient hydrocarbon conversion processes.
Innovation Solution
A catalyst comprising IZM-2 zeolite and a porous mineral matrix, with a specific chemical composition and X-ray diffraction pattern, is developed, allowing for enhanced catalytic performance in hydrocarbon, alcohol, and triglyceride transformations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing zeolitic structures are used, then the catalyst structure is well-established and easy to manufacture, but the stability and acidity are insufficient for efficient hydrocarbon conversion
Solution Approach 1:
The patent employs composite materials by combining IZM-2 zeolite with a porous matrix material to create a catalyst with enhanced stability and acidity. The composite structure integrates the crystalline zeolite phase providing catalytic active sites with the amorphous matrix providing structural support and stability, thereby achieving superior performance compared to conventional single-phase zeolites.
Solution Approach 2:
The patent applies parameter changes by optimizing the chemical composition of IZM-2 zeolite with specific molar ratios of oxides (SiO2: 20-40, Al2O3: 0.5-2.0, TiO2: 0.1-0.5, Fe2O3: 0.1-0.5) and controlling the Si/Al ratio between 10-30. These compositional parameters are precisely tuned to achieve optimal stability and acidity for hydrocarbon conversion while maintaining manufacturability.
2Productivity
If a novel IZM-2 zeolite structure with specific composition is developed, then catalytic performance is improved, but the complexity of catalyst formulation increases
Solution Approach 1:
The patent applies local quality by creating distinct regions within the catalyst structure: the IZM-2 zeolite crystallites provide localized catalytic active sites with specific acidity and porosity, while the surrounding porous matrix provides structural framework and additional active sites. This spatial differentiation of functions enhances overall catalytic performance while managing formulation complexity through modular design.
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 exhibits improved catalytic performance in hydrocarbon conversion processes, achieving high yields of alcoholic esters and maintaining stability, with the ability to operate in various forms (hydrogen or basic) and matrices, ensuring effective transformation of hydrocarbon feeds.
Implementation Method 1
a catalyst comprising at least one IZM-2 zeolite and at least one matrix... used to carry out various processes for the transformation of hydrocarbon feeds
Implementation Method 2
Microporous crystalline materials such as zeolites or silicoaluminophosphates are solids which are widely used in the oil industry as catalysts, catalyst supports, adsorbants
Data Source
AI summary
A catalyst is described which comprises at least one IZM-2 zeolite and at least one matrix, said zeolite having a chemical composition expressed as the anhydrous base in terms of moles of oxides by the following general formula: XO2: aY2O3: bMnO, in which X represents at least one tetravalent element, Y represents at least one trivalent element and M is at least one alkali metal and/or alkaline-earth metal, a and b respectively representing the number of moles of Y2O3 and MnO; and a is in the range 0.001 to 0.5, b is in the range 0 to 1 and n is in the range 1 to 2. Said catalyst is used in various processes for the transformation of hydrocarbon feeds.