Porous Catalyst Adsorption Compression Reaction Rate

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Solution Overview

Problem

Conventional methods for selecting catalysts for catalytic chemical reactions are inefficient and burdensome, lacking a systematic approach to achieve enhanced reaction rates.

Innovation Solution

A method involving the use of porous or particulate catalysts that utilize the potential energy of adsorption compression or adsorption stretching to overcome the activation energy barrier for chemical reactions, by selecting catalysts based on their adsorption isotherms and determining the optimal conditions for maximum energy of adsorption compression or stretching.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional factorial experiments are used to determine optimal catalysts and conditions, then catalyst selection can be performed, but the process is burdensome and inefficient

Engineering Contradiction:
Improvecatalyst selection efficiencyVSAvoidtime for catalyst screening
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent changes the fundamental parameter for catalyst evaluation from reaction rate (kinetic approach) to adsorption energy (thermodynamic approach). By using adsorption energy measurements from isotherms, the patent enables direct prediction of catalytic activity without time-consuming factorial experiments, thereby improving efficiency and reducing time loss in catalyst selection

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the mechanical/experimental trial-and-error system (factorial experiments) with a theoretical/computational system based on adsorption energy calculations. This substitution eliminates the need for extensive physical experimentation by using thermodynamic parameters to predict and optimize catalytic performance

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If catalysts operate using only kinetic energy to overcome activation energy barrier, then reactions can proceed, but reaction rates are limited

Engineering Contradiction:
Improvereaction rateVSAvoidactivation energy barrier
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent applies preliminary action by having reactants adsorb onto the catalyst surface before the reaction occurs. This adsorption process pre-concentrates reactants and pre-positions them on the catalyst, creating a favorable thermodynamic state that reduces the activation energy barrier and enables faster reaction rates without requiring additional kinetic energy input

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent changes the energy parameter from purely kinetic energy to include potential energy from adsorption. By utilizing the potential energy stored in adsorbed species, the system overcomes the activation energy barrier more efficiently, leading to enhanced reaction rates without increasing the kinetic energy of reactants

Inventive Principle:
Principle #35Parameter changes

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 significantly enhances the rate of catalytic chemical reactions by reducing the activation energy barrier, allowing for the identification of catalysts with the highest thermodynamic adsorption capacity and energy of adsorption compression, thereby optimizing reaction rates and conditions.

Implementation Method 1

exposing the at least one of a porous or a particulate catalyst to molecules for the chemical reaction such that at least one of the reactant molecules are adsorbed and compressed on or in the at least one of a porous or a particulate catalyst thus storing potential energy from the adsorption compression

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 2

exposing the at least one of a porous or a particulate catalyst to molecules for the chemical reaction such that the molecules are adsorbed such that at least one or more of the reactant molecules' intramolecular bonds are stretched thereby using the energy of adsorption to reduce the intramolecular potential energy of the stretched bonds and thereby reduce the activation energy barrier to reaction

Methodology Applied
Scientific EffectAdsorption stretching: Adsorption

Implementation Method 3

providing at least one of a porous or a particulate catalyst that has a structure and composition to catalyze the chemical reaction using potential energy of adsorption compression or adsorption stretching

Methodology Applied
Scientific EffectAdsorption compression: Adsorption

Implementation Method 4

exposing the at least one of a porous or a particulate catalyst to molecules for the chemical reaction such that at least one of the products of the reaction are compressed after they are formed on or in the at least one of a porous or a particulate catalyst increasing the rate of desorption of that reaction product and thereby increasing the overall rate of reaction

Methodology Applied
Scientific EffectAdsorption compression: Adsorption

Data Source

PatentUS12311346B2Increasing rates of catalytic chemical reactions by operating under conditions of adsorption compression
Publication Date: 2025.05.27 JOHNS HOPKINS UNIVERSITY
  • US12311346B2 patent drawing
  • US12311346B2 patent drawing
  • US12311346B2 patent drawing

AI summary

A catalyst includes at least one of a porous or particulate material having a plurality of active sites that attract reactants thereto. The active sites have a spacing within a predetermined range so as to enable a chemical reaction to be enhanced through use of potential energy of intermolecular adsorption compression or intramolecular adsorption stretching of one or more reactants to decrease the activation energy barrier or by adsorption compression of one or more reaction products leading to an increased desorption rate for the reaction product molecule and thereby an increased overall rate of reaction.