Hydrotreating Catalyst with Amine and Polar Additives
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current hydroprocessing catalysts for removing organic sulfur and nitrogen compounds from hydrocarbon feedstocks have limitations in activity and stability, necessitating the development of more effective catalysts for enhanced hydrotreating performance.
Innovation Solution
A hydroprocessing catalyst composition incorporating a support material loaded with active metal precursors, specifically Group 6, 9, and 10 metals, along with an amine component and a non-amine containing polar additive, such as DMF and n-formylmorpholine, to enhance catalytic activity in hydrodesulfurization and hydrodenitrogenation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional hydroprocessing catalysts are used for removing organic sulfur and nitrogen compounds, then basic catalytic function is achieved, but catalytic activity and stability are limited
Solution Approach 1:
The patent applies composite materials by combining multiple additives (amine compound, polar additive, and hydrocarbon oil) with the catalyst support and metal components. This creates a composite catalyst system where each component contributes different properties: the amine compound enhances nitrogen compound removal, the polar additive improves sulfur compound removal, and the hydrocarbon oil provides stability. The synergistic interaction among these components resolves the contradiction by achieving both high catalytic activity and improved stability simultaneously.
Solution Approach 2:
The patent employs parameter changes by modifying the chemical composition parameters of the catalyst through the addition of specific compounds with defined molecular structures and properties. By adjusting the types and amounts of amine compounds, polar additives, and hydrocarbon oils, the catalyst's performance parameters (activity and stability) are optimized. This allows the catalyst to achieve higher productivity while maintaining or improving reliability through controlled compositional changes.
2Temperature
If higher catalytic activity is achieved through catalyst modification, then process temperatures can be reduced, but catalyst complexity increases
Solution Approach 1:
The patent utilizes porous materials by incorporating hydrocarbon oil into the catalyst pore structure. The porous support material allows the hydrocarbon oil to be impregnated within its structure, providing a reservoir that releases the oil during operation. This approach reduces catalyst complexity by using the existing porous structure rather than adding separate components, while still achieving the desired temperature reduction through the stabilizing effect of the hydrocarbon oil.
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 composition exhibits significantly improved catalytic activity in hydrodesulfurization and hydrodenitrogenation, achieving higher performance than catalysts using either component alone, with a synergistic effect that reduces process temperatures and sulfur/nitrogen concentrations in treated products.
Implementation Method 1
a support material which is alumina, silica, silica-alumina or a mixture thereof which support material is loaded with an active metal precursor, an amine component, and a non-amine containing polar additive
Implementation Method 2
The organic additive can be introduced onto the hydrotreatment catalyst by dry impregnation, or by co-impregnation simultaneously with the metals, or by deposition during sulfurization of the catalyst
Data Source
AI summary
A composition that comprises a support material that is loaded with an active metal or metal precursor, selected from Group 6 and Group 9 and 10 metals, an amine component, and a non-amine containing polar additive. The composition is useful in the hydroprocessing of hydrocarbon feedstocks. The composition is prepared by incorporating a metal solution into a support material followed by incorporating there¬ in an amine component and a non-amine containing polar additive.