Green hydrogen opens the door to net zero
Green hydrogen is CO2-neutral because it is made using renewable energy, as opposed to blue and gray hydrogen, which are made from fossil fuels. Together with its derivatives, green hydrogen offers solutions for the decarbonization of many industrial sectors, and is especially important where direct electrification is not possible. MAN Energy Solutions provides holistic hydrogen solutions, enabling both the production of green hydrogen from renewable energy sources and the utilization of green hydrogen and its derivatives as net-zero fuels.
Hydrogen offers new ways
Hydrogen and its derivatives offer decarbonization options for the process industry, transportation, and power and heat supply where electrification is not an option. Industrial processes that run on hydrogen, ammonia, and methanol of fossil origin can change to green alternatives.
One example is the production of green steel using green hydrogen, which lowers emissions by 30-40%. In power and heat supply, our medium-speed gas engines can currently be operated with up to 25% hydrogen admixture. Synthetic natural gas allows the CO2-neutral operation of ships and power plants by using the existing infrastructure.
Hydrogen extraction and conversion
In electrolysis, the energy of the sun, water or wind is converted into hydrogen. The proton exchange membrane electrolysers (PEM electrolysers) used for this process are manufactured by MAN Energy Solutions and its subsidiary H-TEC SYSTEMS.
The resulting green hydrogen is then either stored, used directly as a fuel, mixed with natural gas, or converted into other fuels such as synthetic natural gas (SNG), green ammonia or green methanol using the power-to-X process. MAN DWE® offers reactors for these hydrogen-to-X processes.
MAN hydrogen solutions
MAN gas-powered engines are H2-ready and operable in
stationary mode with a hydrogen content of up to 25% by volume in a
gas-fuel mix. This includes the MAN 35/44G TS, 51/60G and 51/60G TS gas
engines. 100% H2 combustion is in development.
SNG as a short- and
Until processes have been adapted to hydrogen, SNG is a CO2-neutral alternative to natural gas for the transition period. Currently, SNG made from hydrogen can be used in natural-gas-powered applications with minimal adaptation. Operators save
2 and can enhance their environmentally friendly reputation. Long-distance shipping is a good example of an application that cannot be simply electrified with batteries but where SNG is practical.
Hydrogen and SNG as door openers for net zero
Find out how green hydrogen and its derivatives make decarbonization possible for hard-to-electrify industries. In our white paper you can find out more about grey, blue and green hydrogen, electrolysis and methanation, Power-to-X, production, transport, and infrastructure.
Survey report 2022
Some time ago, we asked you about the relevance of future fuels for your business, and the opportunities and challenges you saw ahead for future-fuel production. From the numerous replies, we have extracted the most relevant results and are happy to share them.
Stationary engines of MAN Energy Solutions ready for green future fuels
In continuously developing the range of services for its portfolio of four-stroke engines, MAN Energy Solutions enables its customers to exploit a multitude of synthetically manufactured, climate-neutral fuels in the operation of ships or power plants. Already today, MAN engines using power-to-X fuels such as synthetic natural gas (SNG) can be operated totally climate-neutrally.
MAN customers will in due course be able to use other, so-called 'future fuels' –such as ammonia, methanol and hydrogen – also produced in a climate-neutral manner. While these fuels are not currently available on the market, their use in MAN units will, however, be possible through the incipient start-up of green-fuel production facilities. These, in turn, will further reduce harmful emissions and reliably meet future, stricter environmental requirements and regulations.
The company's 35/44G TS, 51/60G and 51/60G TS gas engines relevant for use in power stations are already 'H2-ready' and can be operated with a hydrogen proportion of up to 25% by volume in the gas mixture. By 2025, the units should also be updated and capable of operation on 100% hydrogen.
The 51/60DF and 51/60DF TS multi-fuel engines’ CO2 emissions can be additionally reduced through the use of biofuels. "Full operation with biofuels has already been tested in the field and is possible without any problems," said Alexander Stöckler, Head of the Power Plant Division at MAN Energy Solutions. Similarly, MAN engineers are preparing grounds for operation on ammonia and methanol by the end of 2022.
"We are currently working on a realization concept for operation on ammonia and methanol and are confident that we will begin to implement this by the end of 2022," explained Stöckler. "As of yet, neither fuel plays a role in energy generation but they may have significant potential for the future. Therefore, we are observing the situation very keenly and are in close communication with our customers. As soon as our customers are ready, our engines will be too."
Even now, engine power stations with combined heat and power are already making a considerable contribution to climate protection. "Modern plants already achieve overall efficiencies of over 90% when operating with traditional natural gas," added Stöckler. "By gradually adding hydrogen, SNG or alternative fuels, the climate footprint of such plants can be reduced even further. We will also make the conversion of existing plants to full operation with future fuels possible."
MAN Energy Solutions traditionally follows a life cycle concept, which the company also sticks to when it comes to future fuels. "In addition to new-engine business, we are also always thinking in terms of retrofitting the existing fleet," said Bernd Siebert, Head of Four-Stroke Retrofitting at MAN PrimeServ, MAN Energy Solutions’ after-sales brand. "Power plants have a lifetime of several decades. After retrofitting, engines already in the field have the same capabilities as our new engines. This is how we safeguard, not only the climate, but also our customers’ investment."
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