Broadening horizons for hydrogen combustion

Ernesto Cattaneo, Head of Innovation Projects at furnace specialist Stara Glass and Chiara Caccamo, Research Manager at SINTEF Energy, one of Europe’s largest independent research organisations, spoke exclusively to Glass Worldwide about winning €24 million in funding for the HORIZON H2GLASS project and how this could revolutionise the glass industry. The full version of this article appears in the Jan/Feb 2023 issue that has been mailed globally and is also now available free of charge in the digital archive*.

Broadening horizons for hydrogen combustion

Despite working together for the best part of a year, Ernesto Cattaneo and Chiara Caccamo didn’t actually meet in person whilst preparing their proposal for Horizon Europe’s call for proposals regarding replacement of fossil fuels with hydrogen. The experts from Stara Glass and SINTEF, based in Italy and Norway, respectively, were finally able to convene in Germany at glasstec 2022 where they discussed the success of their long-distance collaboration, which resulted in a €24 million grant from the European Union to study full hydrogen combustion in the glass industry and to push automation and control at higher levels.

The glass industry nowadays has come to a point in which it will take some direction to sort the issues with carbon emissions and the solutions that have been already widely identified: electrification, carbon capture and hydrogen,” explains regular Glass Worldwide contributor and Head of Innovation Projects at furnace specialist Stara Glass, Ernesto Cattaneo. “We answered Horizon’s call about hydrogen.”

Horizon Europe is the European Union’s key funding programme for research and innovation. The EU budget supports the large-scale deployment of renewable and low-carbon hydrogen to meet the continent-wide target of 55% reduction of greenhouse gas emissions by 2030 compared to 1990 levels, and climate neutrality by 2050. Funding is intended to provide support to researchers and innovators to drive systemic changes to ensure a ‘green, healthy and resilient EU’.1

Horizon Europe H2GLASS

We, as Stara Glass, are of course doing all of that [decarbonising] action because we are glass furnace designers,” says Mr Cattaneo. For instance, Stara’s Centauro furnace utilises thermal power/recovered heat, while the company is a partner in the ongoing LIFE SUGAR project, co-funded by the European Union’s Life Programme, which focuses on using heat recovered from furnace waste gases to power a steam-methane reforming (SMR) reaction for producing hydrogen and energy-dense syngas.

We became involved in the Horizon project [due to] SINTEF (Norway’s research centre) presented by Chiara Caccamo who acts as the Project Co-ordinator,” continues Mr Cattaneo. “The glass industry is a super energy-demanding field and SINTEF realised that hydrogen could be applied to solve the carbon issue.”

SINTEF is proficient in managing large research projects, in co-operation with international participants through EU grants. Putting together the proposal for the Horizon project, Ms Caccamo was conscious that, compared to other energy-intensive sectors suitable for H2 utilisation, e.g. iron/steel and chemicals, “the glass industry and the aluminium industry were the ones lagging behind” in terms of funding for projects addressing the replacement of fossil fuels with H2. “There’s a need for the glass industry to receive funds to be able to innovate,” she insists.

Also, you must recognise that there are no real alternatives to glass,” interjects Mr Cattaneo. “Glass is really energy-demanding: glass is produced at more than 1,400°C. But it’s either glass or plastic… and we know what it means, that it must be glass!"

Once, emissions were not a problem,” he continues. “If you look at the priorities of glass production until the 50s, the 60s, the only issue was to have a good quality. After that, they realised they should lower the consumption; then, 15–20 years ago they realised that nitrous oxides (NOx) were a problem and so we had to go in that direction and find solutions to that issue. Now, the problem is simple: the glass industry is producing 5% of European carbon dioxide emissions. It’s millions of tons… We have to do something and we have to do it soon.

Successful application

Through SINTEF, Ms Caccamo was able to organise a cluster of 23 companies who committed to a proposal for a project to decarbonise the glass industry using hydrogen for combustion (which produces water as a by-product) instead of furnaces running on fossil fuels. They applied to Horizon for project funding, with a total budget estimated at €33 million.

The success rate of a Horizon application is only a little superior to zero,” says Mr Cattaneo drily, recalling the nail-biting process they endured. “There is a lot of competition because the different projects are financed in different ways. Horizon is one of the better-financed projects. Non-profit companies like universities and research centres are 100% financed. You can imagine the volume of competition we are talking about with this volume of money. It’s crucial to be perfect in the application.

Final project sign-off was down to Ms Caccamo, who notes that, “It’s a lot of prestige because you compete at the European level so it’s also important to factor in the right partners – you build a ‘family’ during the proposal phase: the level of interaction and the combination of partners and the transparency are critical.

Writing the application is very intense work,” agrees Mr Cattaneo. “It’s very co-operative work and if you have 23 companies, it’s really challenging. At the end – the last few days, when you are expecting the results, we became kind of best friends – we were exchanging messages: ‘When do they announce…?!’

So when did they receive the news about their proposal?

The momentous occasion is etched in Ms Caccamo’s memory: “30th July 2022,” she answers with a smile. “Around one o’clock.

I remember it very well!” adds Mr Cattaneo. “I was going out to a restaurant and she calls me – she’s in Norway so normally we text – I saw her name on the phone ringing and I started screaming! In fact I had an unforeseen round of grappa after lunch,” he laughs.

The European Union awarded €24 million funding to H2GLASS at the end of July 2022 and has started the Grant Agreement process. Innovations generated by H2GLASS reportedly have the potential to create 10,000 new jobs and unlock €1–5 billion of revenue for glass technology deployment, as well as generating investments of upwards of €17 billion and 200,000 new jobs for green H2 – all this while cutting emissions by about 80%.2 The start date for the project is January 2023.

So now we are finalising the Grant Agreement, which is the contract with the European community,” explains Ms Caccamo. “We are in the legal phase of the project and then after we sign off everything we can start work."

We have a timescale of four years,” she continues. “We plan to start the first experiments in two years from the start, around 2025.

How viable is hydrogen?

There is huge scope for hydrogen – the most abundant element in our known universe – to play a key role in future energy systems as the EU moves away from its dependency on fossil fuel. “Unfortunately, you cannot find pure hydrogen, on earth, you must produce it somewhere,” notes Mr Cattaneo.

Fossil-based ‘grey’ hydrogen sourced from natural gas is the most common type used at present. Also made from natural gas, low carbon ‘blue’ hydrogen is a cleaner option because CO2 emitted during its production is captured and stored underground. Hydrogen for H2GLASS will be created through a ‘portable’ electrolyser; this hydrogen production method is almost emission-free and its only by-product is water.3

There are “a lot of viable solutions” for hydrogen to replace fossil fuels in the glass melting process, believes Ms Caccamo. However, “there are many factors to be considered for success – it depends on the factory; it depends on policies, how they will consent industry to adopt hydrogen depends a lot on the cost of the installations, the availability of the infrastructures (gas grid) … there are a lot of parameters,” she cautions. “We just say that with Horizon, it will be a joint effort.”

We can take care of the technical viability,” she continues. “We can sort the industrialisation part, but then when it comes to costs we will need also the support of policy makers and governments… Because as of now hydrogen is expensive, we know that, and we also need a lot of investment in renewables in order to produce the quantity of hydrogen that is required.”

Research Manager at SINTEF, and Ernesto Cattaneo, Head of Innovation Projects Stara Glass.

Partnering with glassmakers and R&D specialists

Five glassmakers have partnered with the H2GLASS project: NSG Group, which manufactures glass under the Pilkington brand; Steklarna Hrastnik, a technology company from Slovenia; Owens Corning, a specialist in the composites industry making glass fibre reinforcements, technical fabrics and non-woven veils; Zignago Vetro, a leader in the glass packaging industry; and Vetrobalsamo, an Italian glass manufacturer specialising in the production of customised bottles.

The glassmakers will contribute “dealing with the industrial perspective and viability for their plants in the industrial trials, so their involvement is critical and huge,” says Ms Caccamo. “They are investing a lot in this project. [Besides] the funds from the European community, investment by the glass industry has also been large.

"Competitive restrictions between manufacturers are not an issue because product individualisation takes place mainly in the colder area where the production happens,” points out Mr Cattaneo. “The furnace and the combustion, they can share. And also we made a point of including glassmakers from different sectors: one does float; one does fibre; one does containers… We wanted to demonstrate the feasibility of hydrogen combustion.

The industrial feasibility because the theoretical one we know,” stresses Ms Caccamo. “So the point is, like you said, the industrial and economic viability.”

It’s easy to imagine this pair keenly debating the finer points of the project, a thousand miles apart…

Also among the 23 H2GLASS project partners are a number of industrial and research institutions and engineering companies, including Stazione Sperimentale del Vetro, STAM Tech, Aston University, and the University of Nottingham.

Glass universities will be involved mainly for the part of digital twinning – the translation of the ‘static’ models from the technical experts into run-time, digital copies,” clarifies Mr Cattaneo.

Testing the technology

Experiments using hydrogen as a furnace fuel source will be carried out at partners’ industrial facilities premises. “They will make available a manufacturing line which will be the pilot line manufacturing place where we can test the supply of hydrogen and see the behaviour of the components and the impact on the process parameters,” explains Ms Caccamo. “But before that there will be a lot of testing under simulated conditions – small scale experiments testing at the facilities that we have available at SINTEF and other partners’ premises. It will [enable the project to] analyse the thermal behaviour of the hydrogen flame, heat transfer [as well as] emissions, efficiencies…

Who is expected to make the first samples with 100% H2 in H2GLASS with this new process?

I would say Steklarna,” opines Mr Cattaneo.

Well, let’s not forget that H2GLASS Consortium hosts the state of the art of the use of H2 for glass making (Pilkington and Steklarna have already produced it), so Steklarna would be one,” agrees Ms Caccamo. “Probably also Owens Corning [will be] among the first ones in the project.

Hydrogen-based manufacturing will eventually take place in the factory of every glassmaker involved, providing data from a variety of production methods, facility/furnace sizes.

Hydrogen in glass furnaces is an extremely intensive field,” emphasises Mr Cattaneo. “This can mean 10MW, 20MW as a power demand. For hydrogen in the Horizon project, if you need 10MW [to power the furnace] you probably need more to generate! We have a lot of challenges. What’s good is that the European Union evaluated [that] we are approaching the challenges in the best way.

Also of note is the involvement of the aluminium industry. “To prove the transferability of our technology, we have a demonstrator in the aluminium industry,” explains Ms Caccamo. Norsk Hydro ASA, an aluminium and renewable energy company headquartered in Oslo, Norway is part of the H2GLASS consortium – “they will test the commodities too and [extend] the viability of the solutions to other sectors that share the same challenges as the glass industry, so I believe this is very important. With the two important materials like glass and aluminium [working in conjunction] … the impact can be really huge.

Deep automation

In parallel to hydrogen combustion, the H2GLASS project is also pursuing the goal of a ‘dark factory’. (The term comes from the idea that this new type of smart factory will automate production operations/tasks/repairs, allowing remote control of overall operations, providing decision support under several conditions, and improving the intrinsic safety of the operators.)

One of the ways in which the glass industry should also evolve is [more] automation,” states Mr Cattaneo. “The concept of a dark factory doesn’t mean that fewer people will work in the factory – it means that there will be support [for] the decision; there will be simulation that helps drive the furnace. Everything has to be simpler, more solid; everything has to be, let’s say, consolidated and supported. Also, the decision support is very important because working in a glass factory is stressful: it’s warm; it’s noisy… We are trying to bring people away from the hot zone as much as possible.

Digitalisation in general can improve the quality of life in a hot environment,” agrees Ms Caccamo. “It was important to push on both sides [both hydrogen and automation] because … this is a whole design [approach].

We don’t expect to have a glass industry without people,” stresses Mr Cattaneo. “A furnace manager is always required. We are trying to limit the risks to support the decisions and to automate as much as we can – for example a performance-saving cleaning operation can be an automatic system, instead of needing to have an advanced operator to go down and clean.

It’s important to lay out the basics: some grounding in technology to allow the future of dark factories,” believes Ms Caccamo. “The intent is not of course to replace people but to lift up the skills required. It will allow probably some gender equality too because the kinds of skills required are starting in the universities, so we need engineers, I.T. programmers, experts in simulation, quality experts, people who can interpret the data, so it has many very positive aspects… it’s an evolution of the industrial workforce, I would say.

Building an expert board

Stara Glass has form in participating in research, development and innovation projects. In May 2021 UK-based industry-backed research and technology organisation Glass Futures selected Stara Glass to design the 30tpd experimental furnace for its global Centre of Excellence at St Helens, and Ernesto is involved in several of the association’s innovation groups. Unsurprisingly, then, Glass Futures is in contention as a H2GLASS project stakeholder. “Surely they will be interested in the project,” says Mr Cattaneo. “And surely they are stakeholders – they are already interested, and we intend to involve them in the project as much as possible.

It’s an important part of the project developing these relationships and mixing synergies with the relevant stakeholders,” notes Ms Caccamo. “We want to build a sort of expert board within the project so we will invite several stakeholders to participate [and] Glass Futures will be a candidate. The role will be to share their experiences inside the project and help design the role of hydrogen in the glass industry in the future.

Having secured the involvement and support from so many experts in their fields, as well as approbation and funds from the European Union, the H2GLASS project aim of fostering a revolution of the glass industry already appears to be off to a good start.

It’s a collaboration that everyone will benefit from,” states Ms Caccamo.

Such a huge study with such rich financing, with such big attention, with such a great participation is unprecedented,” reflects Mr Cattaneo. “We are extremely proud to be leading this.

When glasses of Prosecco materialise on the Stara Glass stand, he proposes a toast: “Here, today, to the project.

Salute!

 

1 https://single-market-economy.ec.europa.eu/industry/strategy/hydrogen/fu...

2 https://blog.sintef.com/sintefenergy/the-glass-decarbonisation-challenge/

3 https://ec.europa.eu/info/news/focus-hydrogen-driving-green-revolution-2...\

Further Information: 

web: www.staraglass.com / www.sintef.no

Image: H2Glass in numbers / Chiara Caccamo, Research Manager at SINTEF, and Ernesto Cattaneo, Head of Innovation Projects Stara Glass.

 

* The full version of this article appears in the Jan/Feb issue that has been mailed globally. The digital version of this issue can also currently be read free of charge in its entirety in the Digital Archive (sponsored by FIC) of over 60 issues of Glass Worldwide at https://www.glassworldwide.co.uk/Digital-Issues. To receive the paper copy, all future issues and a free copy of the Who’s Who / Annual Review yearbook, subscribe now at https://www.glassworldwide.co.uk/subscription-choice