Contact

Green hydrogen from biogas

By

September 15, 2020

Image titel:

Sources:

Green hydrogen from biogas

electricity costs
Levelized Cost of Electricity (Cent/kWh)

Hydrogen is considered the ideal raw material for a sustainable energy market transformation. However, some questions still await answers. Where will we get our hydrogen? Will we use the gray, blue, turquoise or green variant in the distant and not-so-distant future? Green hydrogen is produced using renewable energy sources and often generated via water electrolysis.

However, one of the biggest obstacles to using the gas, most of all in transportation, is its poor conversion efficiency. From the 100 kilowatt-hours of clean power fed to an electrolyzer, only 32 will end up in the fuel tank.

Advertisements

The remainder is lost during electrolysis, compression, delivery, and ultimately, during fuel cell conversion. By contrast, the efficiency of all-electric vehicles is around 73 percent [4]. This article will discuss the option of producing renewable hydrogen from biogas via steam reforming. A crucial advantage of this pathway is its astonishing efficiency. Compared to water electrolysis, biogas-sourced hydrogen has a cutting edge – in more ways than one.

Biogas facilities produce biogas from both biogenic waste and sustainable raw materials. Around 90 percent of the gas is fed to distributed cogeneration plants, thus producing both electricity and heat. The other 10 percent is processed into biomethane. In 2019, around 9,500 biogas systems were up and running in Germany, feeding 31.9 terawatt-hours into the national power grid [1, 3].

Advertisements

Yet, biogas is more than just a source of electricity and biomethane. Via steam reforming, the methane-rich gas can also be used to manufacture green hydrogen, whereby a catalyst refines and separates the hydrogen from the gas stream. Steam-reforming natural gas, with subsequent pressure-swing adsorption to remove impurities, is currently the most common hydrogen production method in all corners of the globe [8]. Small reformers, such as those required for CHP biogas plants, are already commercially available, indicating tried-and-true technology can be tapped immediately.

Bright prospects for the hydrogen industry
Biogas-sourced hydrogen can significantly improve energy efficiency. Instead of generating 31.9 terawatt-hours of electricity a year, German biogas plants could switch to steam reforming to produce around 58 terawatt-hours, or 1.7 billion kilograms of hydrogen annually (see fig. 1). By contrast, PV systems in Germany produced 47.5 terawatt-hours in 2019, and the country’s total PV generating potential would be only around 33 terawatt-hours’ worth of hydrogen [2, 3].

read more in H2-international August 2020

Authors:
Maximilian Schleupen,
M.Sc.Prof. Herbert Pfeifer; both for RWTH Aachen, Aachen, Germany
Dr. Joachim G. Wünning, WS Wärmeprozesstechnik GmbH, Renningen, Germany

Here are interesting and current articles on the topic of hydrogen – stocks and the stock market!

Economic prospects for companies in the hydrogen sector | Future, stocks & hydrogen companies on the stock exchange and more…

Which hydrogen companies will prevail in the competitive market in the long term? Get tips and cartwheels and learn more about risks or opportunities. Our stock market specialist and expert author Sven Jösting reports critically, independently and competently.

Apr 11 2024

Bloom Energy convincing in the long haul

Bloom Energy is planning a cooperation with Shell to use its SOEC technology for the large-scale...
Apr 11 2024

Ballard – Prospects better than current market valuation

The share price of Ballard Power is at an all-time low. The published figures for the fourth...
Mar 18 2024

Search for the ideal hydrogen storage

Interview with Thomas Korn, CEO of water stuff & sun Startup company water stuff & sun has...
Mar 15 2024

Is exponential growth slowing down?

Fuel Cell Industry Review 2022 Year 2022 saw fuel cell shipments creep up over 2021 numbers,...
Mar 11 2024

On the way to becoming a green hydrogen partner

Oman aims to score points with H2 infrastructure Wind, sun and loads of expertise – these...
Mar 07 2024

We can master a scale-up for green hydrogen

Interview with Dr. Kai Fischer, Director at RWTH Aachen The efficient scaling of green hydrogen...
Mar 07 2024

Frustration over continuing uncertainties

Interview with Jorgo Chatzimarkakis, CEO of Hydrogen Europe There is a lot that needs sorting out...
Mar 05 2024

“If ever there was momentum for hydrogen, it is now”

Interview with Dr. Jochen Köckler, chairman of Deutsche Messe “We’re bringing people together.”...
Feb 28 2024

H2Direkt: Blueprint for heating with pure H2

The energy providers Thüga und Energie Südbayern (ESB) as well as Energienetze Bayern have...
Feb 26 2024

Just switch over?

Hydrogen in the existing natural gas network Whether hydrogen contributes to the clean heating...
Feb 26 2024

Pilot plant for coating bipolar plates

At Fraunhofer FEP (Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und...
Feb 20 2024

55 MW electrolyzer to decarbonize Saarland

Hydrogen Regions series: HydroHub Fenne living lab The power plant site in Fenne, Völklingen, a...
Feb 20 2024

Chicken feathers as FC membrane material

Feathers from chickens or other poultry could in the future help make fuel cells more effective...
Feb 15 2024

SMEs demand more security

Guest article by André Steinau, CEO of GP Joule Hydrogen After all, the Ampel Coalition leading...
Feb 15 2024

Accelerated expansion of renewable energies

RED III is here – Elsewhere, the wait continues Progress is being made at EU level – albeit...
Feb 12 2024

Picea 2 relies on lithium instead of lead

HPS presents new product generation The company HPS Home Power Solutions has unveiled a new...
Feb 12 2024

H2 production by photocatalysis

The direct generation of hydrogen from sunlight has long been considered the most elegant solution...
Feb 05 2024

Regional instead of international

Hy-Fcell has it difficult asserting itself The aspiration of Landesmesse Stuttgart with Hy-Fcell...
Feb 01 2024

Hydrogeit Verlag turns 20 years old

Hydrogeit Verlag is proudly celebrating its 20th anniversary as a renowned specialist publisher in...
Jan 26 2024

Stracke other H2Now managing director

BMV Energy GmbH is entering the market as another player in hydrogen refueling stations. The...

4 Comments

  1. Simon Arnold

    This raises the question – why not just produce biomethane. This becomes a drop-in fuel for use in existing infrastructure including diesel engines that can be reasonably simply converted to run on it

    Reply
  2. Vijay Beleri

    use of bio methane could be the first step towards this process. Need a lot of dedicated team work. Bio methane and subsequently green hydrogen has a lot of potential in our country (India). Hope it is established in a big way. Government can subsidise equipment eg. compressors which are the most expensive equipment in the process.

    Reply
  3. Yuriy Epshtein

    If somebody needs green hydrogen, the cheapest way – to produce it from biomethane

    Reply
  4. gordonchqd

    Green hydrogen from water electrolysis faces efficiency bottlenecks, biogas offers an intriguing and efficient alternative. As countries like Germany demonstrate, tapping into biogas’s potential could usher in a greener, hydrogen-powered future.

    Reply

Trackbacks/Pingbacks

  1. Around the world in 0.8 days - Emakina Blog - […] Green hydrogen from biogas. (2020, September 15). H2-International. https://www.h2-international.com/2020/09/15/green-hydrogen-from-biogas/ […]

Submit a Comment

Your email address will not be published. Required fields are marked *