Process and System for Providing Hydrogen Gas

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes an efficient process and system for providing hydrogen gas using a two-step cycle with a liquid organic hydrogen carrier (LOHC) medium. The process involves first releasing hydrogen gas from the carrier through a catalytic dehydrogenation reaction. The partially discharged carrier is then catalytically oxidized in a second reactor to generate heat, which is in turn used to drive the dehydrogenation step. The system effectively creates a self-sustaining cycle where byproduct heat is recovered, reducing external energy requirements for hydrogen release.

Use CasesContent extracted from patent full text and abstract with AI.

• Supplying hydrogen gas for fuel cell vehicles (cars, buses, trains, ships, etc.)
• Hydrogen refueling stations and infrastructure for distribution and storage
• Industrial hydrogen supply for chemical, metallurgical, or energy applications
• On-board generation of hydrogen for portable or stationary power units
• Integration with renewable energy systems for storing and releasing hydrogen as needed

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly improves the efficiency of hydrogen gas release by recycling reaction heat, reducing external heating needs.
• Enables a compact and integrated system suitable for both stationary and mobile applications.
• Minimizes carrier degradation and unwanted byproducts by controlling reaction conditions.
• Allows scalable and dynamic adjustment to match variable hydrogen demand, especially important for mobile and on-demand applications.
• Utilizes widely available (air) oxygen for the oxidation step, increasing system practicality.
• Can work with established LOHC systems to simplify storage, transport, and handling of hydrogen.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a process for providing hydrogen gas, comprising a catalytic dehydrogenation of an at least partially charged hydrogen carrier medium to an at least partially discharged hydrogen carrier medium in a dehydrogenation reactor (9), thereby releasing hydrogen gas, a catalytic oxidation of the at least partially discharged hydrogen carrier medium in an oxidation catalyst to form an at least partially oxidized hydrogen carrier medium in an oxidation reactor (28), and a transmission of heat generated in the oxidation reactor (28) to the dehydrogenation reactor (9). The catalytic oxidation comprises the conversion of at least one of the alkylene groups into a keto group.