System and method for producing ammonia

AU2023349727B2Pending Publication Date: 2026-07-16SIEMENS ENERGY GLOBAL GMBH & CO KG
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Patent Information

Application Number
AU2023349727
Authority / Receiving Office
AU · AU
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-09-30
Filing Date
2023-09-05
Publication Date
2026-07-16

AI Technical Summary

Technical Problem

Conventional ammonia production is energy-intensive and carbon-emitting, primarily relying on fossil fuels for hydrogen production, and the integration of renewable energy sources is challenging, especially in remote areas where cooling water is scarce.

Method used

An ammonia production system integrating an electrolizer powered by renewable energy to produce hydrogen and oxygen, utilizing a gas turbine operated with hydrogen to generate nitrogen, and employing a heat pump circuit for efficient energy conversion and cooling, eliminating the need for air separation systems.

Benefits of technology

This system enables more efficient, environmentally friendly, and economical production of green ammonia by leveraging renewable energy, reducing carbon emissions, and optimizing energy use through integrated energy conversion and cooling processes.

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Abstract

A system (1) for producing ammonia comprises an ammonia reactor (44) which is designed to produce ammonia (NH3) from a synthesis gas, the synthesis gas comprising hydrogen (H2) and nitrogen (N2), and the system also comprises an electrolizer (2) which is designed to produce hydrogen and oxygen from water, wherein: a compressor (6) is provided and is fluidically connected to the electrolizer (2) and is designed to compress the hydrogen (H2) coming from the electrolizer (2); and the compressor (6) is designed to compress mobile hydrogen (H2).
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Citation Information

Patent Citations

  • Chemical energy storage system and method based on synthetic ammonia

    CN113860329A

  • System and method for load balancing of intermittent renewable energy for an electricity grid

    US20170122129A1

  • Process for the preparation of ammonia and heavy water

    US4213953A