Hydrocracking Catalyst for Bio-oil Polymerization Suppression
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Solution Overview
Problem
Current bio-oil upgrading technologies face inefficiencies due to the formation of high molecular weight polymers during thermal decomposition of biomass, leading to low yield and coke formation, as existing catalysts fail to effectively suppress polymerization reactions and decompose high molecular weight compounds efficiently.
Innovation Solution
A hydrocracking catalyst comprising a zeolite carrier with nickel (Ni), ruthenium (Ru), and cerium (Ce) supported on it, which is used to selectively decompose high molecular weight compounds in bio-oil, inhibiting polymerization and enhancing the conversion of bio-oil into lower molecular weight products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If thermal decomposition is used to convert biomass to bio-oil, then fuel production is achieved, but high molecular weight polymers form causing low yield and coke formation
Solution Approach 1:
A hydrocracking catalyst comprising a zeolite carrier with nickel (Ni), ruthenium (Ru), and cerium (Ce) supported on it is introduced as an intermediary substance to mediate between the thermal decomposition process and the final fuel product. The catalyst facilitates the decomposition of high molecular weight polymers into lower molecular weight compounds, converting harmful polymerization products into useful fuel components.
Solution Approach 2:
The catalyst changes the chemical parameters of the bio-oil by reducing molecular weight through hydrocracking reactions. The supported metals (Ni, Ru, Ce) on the zeolite carrier create active sites that alter the molecular structure, breaking C-C and C-O bonds in high molecular weight compounds and converting them to lower molecular weight fuel components, thereby improving yield and reducing coke formation.
2Reliability
If existing catalysts are used for bio-oil upgrading, then some conversion is achieved, but they fail to effectively suppress polymerization reactions and decompose high molecular weight compounds
Solution Approach 1:
The invention uses a composite catalyst material combining zeolite carrier with multiple supported metals (nickel, ruthenium, and cerium). This composite structure leverages the synergistic effects of different materials: the zeolite provides structural support and acidity, while the supported metals provide hydrogenation and hydrocracking activity. This composite approach enables both effective decomposition of high molecular weight compounds and suppression of polymerization reactions, achieving high reliability in bio-oil upgrading.
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 significantly increases the yield of hydrodeoxygenation reactions by effectively reducing the molecular weight of high molecular weight compounds and suppressing polymerization, thereby improving the overall hydrocracking efficiency and bio-oil upgrading process.
Implementation Method 1
a hydrocracking catalyst comprising a zeolite carrier with nickel (Ni), ruthenium (Ru), and cerium (Ce) supported on it, which is used to selectively decompose high molecular weight compounds in bio-oil
Implementation Method 2
suppressing polymerization reactions and decompose high molecular weight compounds efficiently
Data Source
AI summary
Disclosed herein are a catalyst for hydrocracking reaction of high molecular weight components in bio-oil, a method for preparing the same and a method for bio-oil upgrading using the same. The catalyst includes a zeolite carrier; and at least one metal selected from the group consisting of nickel (Ni), ruthenium (Ru) and cerium (Ce) supported on the carrier. The catalyst promotes the hydrocracking of high molecular weight compounds contained in the bio-oil, but also inhibits the polymerization reaction of the decomposed product, thereby more effectively enhancing the hydrocracking reaction of the bio-oil.