Method for Producing a Synthetic Fuel and System for Carrying Out Such a Method

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

The patent describes an eco-friendly process and system for producing synthetic fuel by integrating a water electrolysis unit, a biogas plant, a gas combustion unit, and a fuel synthesis plant. It uses renewable hydrogen (from water electrolysis) and carbon dioxide (from biogas combustion offgas) as the main feedstocks for synthesizing fuels such as methanol. The process is designed to maximize use of renewable and non-fossil carbon sources, minimize waste CO2 emissions, and can be implemented with existing block-type thermal power stations and biogas facilities.

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

• Decentralized production of synthetic fuels like methanol in rural or agricultural areas with biogas plants
• Green fuel supply for transportation sectors, especially where electrification is difficult
• Utilization of excess renewable electricity for hydrogen production and synthetic fuel synthesis
• Carbon recycling and emission reduction initiatives in agricultural and waste treatment industries
• On-site sustainable fuel manufacturing for remote industrial or community applications

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces reliance on fossil fuels by using renewable hydrogen and biogenic CO2 sources
• Significantly lowers greenhouse gas emissions by recycling CO2
• Enables decentralized, local production of synthetic fuels, reducing transportation and logistics costs
• Simplifies CO2 capture from offgas compared to traditional methods, increasing process efficiency
• Enhances energy integration by utilizing generated heat and electricity on-site
• Retrofits existing infrastructure (such as biogas plants and block heating power stations), requiring modest modifications

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Patent Abstract

The present invention relates to a process for producing a synthetic fuel, comprising the steps of: a) splitting water (H2O) into oxygen (O2) and hydrogen (H2) using an electrolyser (2); b) producing a biogas comprising methane (CH4) and carbon dioxide (CO2) using a biogas plant (6); c) producing power and/or heat in a gas combustion plant (8) using biogas (CH4, CO2) produced in the biogas plant (6) and oxygen (O2) obtained from the electrolysis; d) treating the offgas including water (H2O) and carbon dioxide (CO2) that leaves the gas combustion plant (8) in such a way that water (H2O) is at least partly removed therefrom, especially by means of condensation; and e) producing synthetic fuel in a fuel synthesis plant (15) using carbon dioxide (CO2) obtained from the offgas from the gas combustion plant (8) and hydrogen (H2) obtained from the electrolysis. The invention further relates to a system (1) for performing the process.