Tag Archives: biodiesel

Rio Tinto to explore Pongomia seed-based biofuels optionality in Australia

Environmental, Power supply for mines, Sustainable mining, , , , , , , ,

Rio Tinto says it will develop Pongamia seed farms in Australia as part of a new biofuels pilot to explore the potential of Pongamia seed oil as a feedstock for renewable diesel, a cleaner alternative to traditional fossil fuels.

The pilot aims to determine if Pongamia seed oil can contribute to Rio Tinto’s renewable diesel needs while potentially contributing to the growth of a new biofuel sector in Australia. Rio Tinto is in the final stages of acquiring approximately 3,000 ha of cleared land near Townsville, in north Queensland, to establish farms to study growth conditions and measure seed oil yields.

Rio Tinto has partnered with Midway Limited to oversee the planting and management of the Pongamia seed farms. Midway Limited will engage with nurseries, agricultural experts and research organisations throughout the pilot, and prioritise opportunities for Traditional Owners and local communities.

As part of its ongoing efforts to achieve net-zero Scope 1 and 2 carbon emissions by 2050, Rio Tinto says it is actively exploring the potential of biofuels in the low-carbon energy mix. The company sees biofuels as an avenue to reduce reliance on fossil diesel, while fleet electrification technologies mature. Rio Tinto is also investigating how biofuels could be used in scenarios where electrification may face practical limitations.

In the US, Rio Tinto’s Boron, California operation became the first open-pit mine in the world to complete the full transition of its heavy machinery to renewable diesel. The company’s Kennecott copper operation in Utah will also replace its fossil diesel consumption with renewable diesel this year.

Rio Tinto Chief Decarbonisation Officer, Jonathon McCarthy (pictured above), said: “Diesel accounts for around 10% of our emissions footprint in Australia. While we continue to pursue electrification as the long-term solution for displacing the majority of our diesel use, the Pongamia seed pilot is an important parallel pathway that could reduce our reliance on diesel in the mid-term. It also presents a compelling option for other applications that are challenging to electrify, including blasting and non-haul equipment.

“Australia does not yet have a biofuel feedstock industry sufficient to meet domestic demand. A sustainable biofuels industry here could enhance the region’s fuel security, create local economic opportunities, and contribute to emissions reductions targets. We are excited about the potential of the Pongamia seed pilot and look forward to partnering with Midway Limited and north Queensland communities.”

Midway Limited Managing Director, Tony McKenna, said: “We are very excited to be partnering with Rio Tinto on this innovative pilot project. We are proud to be playing an important role in helping develop a sustainable domestic biofuel industry.

“The collaboration continues the growth of our position as trusted providers with the capability and experience to deliver a variety of projects for emitters who are committed to seeking alternative solutions to reduce their net emissions.”

This pilot follows a smaller-scale trial at Rio Tinto Gove operations in the Northern Territory where Pongamia saplings were planted to learn more about their response to low soil quality, heat and other climatic conditions in northern Australia.​

Pongamia (Millettia pinnata) is a legume tree native to Australia. It is fast-growing, resilient and produces oil-rich seeds that can be processed into renewable diesel, which offers a significant reduction in life-cycle carbon emissions compared to fossil fuel diesel, Rio Tinto says. Pongamia seed can be harvested annually, leaving the trees and soil intact to store carbon dioxide. ​

Perkins premieres new off-highway engine, reveals future fuel-agnostic plans

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Perkins says it is addressing evolving industry demands for improved fuel efficiency and performance with a “next-generation” 13-litre diesel engine suitable for off-road applications.

Available in 2026, the Perkins® 2600 Series engine platform is designed for demanding requirements, as well as the realities of moving towards a lower-carbon future.

Perkins says the new 2600 Series achieves best-in-class power density, torque and fuel efficiency for heavy duty off-highway applications, with applications in mining, including excavators, dozers, drills, trucks, feeders, screens and pumps, among others.

It comes with eight power ratings from 340 kW to 515 kW, offering up to 3,200 Nm of peak torque. Industrial open power units configured with engine-mounted aftertreatment and cooling packs will also be available from the factory to reduce installation and validation costs for OEMs, the company said.

Perkins will offer 2600 Series engines configured to meet the emissions standards of higher regulated countries, such as EU Stage V, U.S. EPA Tier 4 Final, China Non-road IV, Korea Stage V, and Japan 2014, as well as versions for lesser regulated countries. The engines are compatible with renewable liquid fuels such as 100% hydrotreated vegetable oils (HVO), B100 distilled Biodiesel and up to B100 fatty acid methyl ester standard biodiesel.

Additionally, the platform’s core architecture supports the future development of spark-ignited natural-gas and hydrogen fuel capabilities, according to the company.

To date, engineers have completed more than 20,000 hours of design validation on the 13-litre engine platform, with early OEM pilots available in 2025 and commercial production scheduled to begin in 2026.

Speaking at a press event held in London yesterday, Product Marketing Manager, Allen Chen, said prototypes were already out in the field in construction, agriculture and material handling applications, some of which were testing the highest power category.

He also said the new design piggybacked off the development of the smaller 904 Series engine, and was engineered for “tomorrow” with options for a drop-in exhaust gas recirculation system should future regulations require further emission reductions.

Hybrid power options – diesel-electric, among them – were also front of mind when designing this engine, Chen added.

Perkins says it is continuously developing and optimising a large, fast-growing portfolio of advanced power product and service solutions designed to help customers manage the energy transition to a more sustainable, lower-carbon future, including:

  • 48-, 300- and 600-volt lithium-ion battery solutions with modular designs and factory-installed telematics that Perkins is developing to optimise performance and packaging in numerous next-generation off-highway applications;
  • EU Stage V and U.S. EPA Tier 4 Final industrial diesel engines and industrial open power units that are already available to help OEMs reduce greenhouse gas emissions from their machines;
  • A full range of engines that today, without modification, can use a wide range of lower-carbon intensity drop-in fuels such as HVO and biodiesel;
  • Highly configurable integrated, end-to-end diesel-electric hybrid powertrains, suitable for a wide range of off-highway applications;
  • Connectivity solutions with hardware reading important engine data, displayed to the customer as timely insights; and
  • Aftermarket capabilities promoting sustainability through improved fuel efficiency and prolonged machine life cycles, such as Perkins Hypercare packages and overhaul kits to full replacement engine solutions.
Perkins says it has highly configurable integrated, end-to-end diesel-electric hybrid powertrains, suitable for a wide range of off-highway applications

At that same press event, Paul Moore, Head of Powertrain System Integration Engineering – Industrial Power Systems division, revealed details of “Project Coeus”, which has been established to come up with a “compact drop-in solution for flexible low carbon intensity power”. Such a solution would leverage hardware and software that allows the use of alternative fuels – ethanol, methanol, bio-methane and hydrogen – to be used within the Perkins engine portfolio.

Moore said a solution could be demonstrated in a machine in three years’ time that allowed such agnostic fuel supply options.

Jaz Gill, Vice President of Global Sales, Marketing, Service and Parts, said of the 2600 Series: “As the off-highway industry advances toward a lower-carbon future, equipment manufacturers still face expectations for long-term productivity and reliability in the world’s most demanding work environments. The new Perkins 2600 Series engine platform demonstrates how we’re leveraging our experience, intelligence and commitment to help OEMs navigate the energy transition with power solutions that deliver exceptional performance on the work site.”

The Perkins 2600 Series showcases the company’s commitment to innovations that support the success of customers by challenging traditional assumptions – which was evidenced by the 82 patents granted to date across the entire engine platform, the company said.

The engines are designed to perform at altitudes of up to 12,000 ft (3,658 m), and in extreme ambient temperatures as high as 60°C and as low as minus 40°C with aids.

The engine supports quality, reliability and easier maintenance through numerous design enhancements, including the integration of components as well as a reduction in the number of leak joints by more than 45%, the company says. Together, the upgrades result in lower fluids consumption and extended oil and fuel filter service intervals as long as 1,000 hours, reducing operating costs and downtime.

Perkins said: “2600 Series engines will offer telematics solutions enabling OEMs to collect, analyse and integrate key engine performance data within a connected intelligent platform. By modularising and eliminating components, its architecture is space-protected to accommodate configuration adjustments anticipated for future tiers of emission standards in the US and EU without relocating customer connection points. All eight power ratings for higher regulated markets will be available on a common core engine, enabling OEMs to reduce their inventory and integration costs.”

It added: “The combination of the all-new rear gear train, stiffer core architecture, and common rail fuel system reduces noise by up to 3 dB when compared with Perkins current 13-, 15- and single-turbo 18-litre engines.”

The launch came at the same time Perkins unveiled a new global strategy to advance sustainable power with a brand refresh – a move, it said, better reflects its commitment to helping customers confidently challenge conventional wisdom and explore new ways to achieve their power and climate-related goals.

A subsidiary of Caterpillar Inc. for over 25 years, Perkins says it pioneered diesel engine power in the 1930s and has continuously evolved to help customers navigate technological change and solve complex challenges. Since its founding, the brand has manufactured over 22 million engines – with more than 4.5 million in use in over 5,000 different applications today.

The new Perkins brand strategy communicates a clear promise – “delivering smarter solutions to advance sustainable power” – and a renewed sense of purpose rooted in helping customers build and power a better, more sustainable world, it said.

Shell on the future of fuel switching

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Mark Hannan, General Manager for Mining Decarbonisation at Shell, explores how mining operators can switch their fleets from diesel to low-carbon fuels as part of a wider transition to zero-carbon fuels.

The mining industry is in need of decarbonisation but delivering change at pace is a real challenge. There is huge pressure to achieve this when, it is estimated, 10% of the world’s energy-related greenhouse gas (GHG) emissions come from primary minerals and metals production, according to Nature Geoscience Magazine (2020).

For a mining company to achieve their decarbonisation goals, it is beneficial to maximise the benefits in the short term while providing greater flexibility for the long term. One such area that offers opportunities for this is fuel switching in mining fleets.

Decarbonisation drives the need for alternative fuels

No matter what stage a mining business has reached on its pathway to decarbonisation, it is important to review how its mobile assets impact the environment. McKinsey shows that between 40-50% of CO2 emissions in mining come from the diesel used for mobile assets.

Due to concerns around diesel fumes in confined spaces, the problem is largely being solved in underground sites – with some due to run entirely on battery-electric assets in the near term. In open-pit mines, where equipment is larger, emissions from diesel fuel are a challenge still to overcome, which is why fuel switching is essential to decarbonisation.

However, there are still many elements to consider when making the business case for alternative fuels. This includes the performance of alternative fuels in comparison with diesel, the capital investment needed to implement them and how widely available they are. That is before analysing the benefits of meeting emissions targets against the higher cost of using low-carbon fuels.

A net-zero future is coming, but it is not here yet

In the longer term, there are two diesel alternatives that will offer key routes to effective fuel switching: hydrogen and electricity.

Hydrogen is set to play a significant role in the decarbonisation of every industry – not least those featuring hard-to-abate sectors like mining. As well as reducing emissions in overall energy use across sites, hydrogen will provide a low-carbon alternative to diesel that also delivers higher energy density to drive the performance of mobile assets.

Government support for hydrogen power is growing rapidly and it is an area in which Shell is working closely with customers and original equipment manufacturers (OEMs) to drive innovation and deliver supply at scale. However, with hydrogen supply dependent on elements such as the availability and cost of technology, land, water, storage and transport, it is an alternative that will only start to present real impact from 2030 and beyond.

For off-highway equipment in mining, fleet electrification is often seen as a more relevant near-term solution. This is not surprising as electric power can not only contribute to reduced emissions but also help businesses shift away from their exposure to volatile diesel prices – potentially leading to a positive impact on total cost of ownership (TCO).

To help deliver on the mining industry’s longer-term aspirations for fleet electrification, Shell is developing a suite of modular end-to-end solutions for mining heavy-duty vehicles that decarbonises haul trucks while minimising the operational impact of electrification in a scalable, interoperable and sustainable way.

When looking to make the switch to electrification, mining companies must address the significant escalation in power demand that would come with full-scale electrification. Also, they will want to know the electricity is generated from renewable sources – helping them to reduce their Scope 1 and 2 emissions. Electrification powered by renewable energy will be a significant driver of change for mining sites, which is why Shell is working to overcome the barriers to increasing its renewable capacity – such as the need for upgrades to the grid and storage capabilities.

Low-carbon fuels offer an immediate next step for mining businesses

Hydrogen and electrification represent the future of fuel for mobility in mining. But, in the short term, there is another alternative that can act as a transition fuel and help lower emissions while businesses wait for hydrogen and electricity to become viable at scale: low-carbon fuels.

There are two types of low-carbon fuels relevant to mobility in mining:

  • Biodiesel – also known as Fatty Acid Methyl Ester (FAME); and
  • Renewable diesel – also known as Hydrotreated Vegetable Oil (HVO)

Though both are derived from organic biomass like waste vegetable oils and animal fats, there are differences in their chemical composition owing to a different manufacturing process that impact their use. For instance, biodiesel is the more affordable choice, yet most OEMs place a limit on the percentage it is possible to blend with conventional diesel due to quality concerns such as storage stability and performance in cold temperatures. Renewable diesel more closely resembles the composition of conventional diesel, meaning it can be blended in any ratio up to a concentration of 100%, but is more expensive due to the complexity in refinery processing. Crucially, both fuels offer a route to emissions reduction in mining – and a combination of the two is likely to be needed.

These low-carbon fuels offer a more immediate solution to the challenges of fleet decarbonisation in mining, without making costly investments in infrastructure. Not only can they be used in existing heavy-duty diesel engines, but, as long as they are in accordance with manufacturer advice, they also require no infrastructure investment. This makes them a more affordable short-term option that enables businesses to reduce emissions today while working to implement the ecosystem needed to transition to hydrogen and electricity tomorrow.

Overcoming the challenges of availability at scale

The merits of low-carbon fuels for a sites’ mobility needs might already be clear. After all, the technology is mature and it is easy to implement – certainly compared with hydrogen and electricity. However, there are still barriers to overcome before we see widespread adoption in the mining industry.

Availability and affordability are the two critical challenges. Despite its maturity, supply of low-carbon fuels is tight – especially given the remote regions that mining operations usually take place in. The need to comply with regional regulations on renewable fuels is also driving rising demand. For example, the EU Commission’s renewable energy directive has proposed increasing its target for renewable energy sources consumption by 2030 to 45% (up from its current goal of 32%).

Also, mining is not the only sector looking to alternative fuels to drive decarbonisation, meaning businesses will need to compete and trade with areas like commercial road transport to source low-carbon options. With more users needing access to alternative fuels, premiums for low-carbon fuels remain high. This can make low-carbon fuels less affordable and risks undermining any TCO improvements businesses can expect to realise from fuel switching.

It means that businesses are hesitant to act today as they wait for more capacity and greater competition to arrive – even though mining cannot afford to delay its emissions reduction efforts. That is why, at Shell, we are working to deliver additional capacity and competition. As well as investing in new production facilities (including a new biofuels facility in the Shell Energy and Chemicals Park Rotterdam, which will produce sustainable aviation fuel and renewable diesel made from waste in The Netherlands once it comes onstream), we are using our existing relationships with OEMs to help mining businesses get the most out of the low-carbon fuels they do have access to.

Collaboration will be critical to fuel switching success

Ultimately, if mining businesses are to meet their regulatory responsibilities while driving performance, they will need to unlock the opportunity that fuel switching provides. From low-carbon fuels to electrification to hydrogen, there is huge potential to reduce emissions while improving the TCO of mining mobility.

Successful fuel switching will require close collaboration with partners and suppliers to create a new fuel ecosystem by improving the availability and affordability of alternatives to conventional diesel. Only by working together will we deliver a new fuel future for mining, which is why Shell Mining is committed to supporting the industry on every step of its decarbonisation journey.

Photo credit: Getty Images

Sandvik and Finning partner on HVO biodiesel use in crushing, screening equipment

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Sandvik’s Mobiles business unit and Cat dealer Finning say they have successfully tested hydrotreated vegetable oil (HVO) with C series Cat® engines without making any modifications to the engine or fuel tanks.

The test could pave the way for the renewable synthetic diesel powering large, mobile crushing and screening equipment from Sandvik, the OEM said.

Forming a part in both company’s journey towards a more sustainable future, the use of HVO reduces net carbon emissions by up to 90% compared with conventional diesel, the companies say, with the HVO used by the companies only made from renewable feedstocks certified by The International Sustainability & Carbon Certification.

Its performance is similar to regular diesel, so the power output and uptime are not compromised, according to the companies.

The companies explained: “Hydrotreating of vegetable oils is a modern way to produce very high-quality renewable diesel fuels without requiring any changes to fuel logistics, engines, or exhaust aftertreatment devices. Unlike other biodiesels, HVO is not sensitive to low or high temperatures, or indeed to exposure to sunlight, as all oxygen is removed during the production process. Also, due to the use of hydrogen in the production process, HVO has an impressive shelf life, compared to other biodiesels. Since no iron or system changes are required, it can be considered a drop-in replacement for diesel.”

Jesper Persson, Vice President Life Cycle Services at Sandvik Mobiles, said: “We are committed to using engineering and innovation through our products to make the shift towards more sustainable business. With a host of innovations in the pipeline, including electrification of our offering, we are excited to be pioneers in the industry and invest in renewable fuel sources sustainable rock processing solutions.

“Working alongside Finning to performance-engineer the feasibility of HVO means we can collect data and monitor any impact on the performance and output. It’s an exciting step in our contribution to sustainability and we will work together with our customers and suppliers for more productive, safer, and innovative solutions.”

Steffen Barrett, Sales Manager – Industrial Engines, Finning UK & Ireland, said: “As Sandvik strive to balance environmental and business sustainability, we are ready to provide the solutions they need to achieve their goals. Our customers’ priorities are evolving toward a carbon-reduced future and our products and services are evolving with them.

“We are actively supporting the use of plant-based and waste-derived fuels in our engines as alternatives to traditional fuels. Our engines are engineered for use with a range of renewable fuels, including up to B100 HVO (EN15940 or ASTM D975), that have a significantly lower net carbon footprint than conventional diesel.”

Aemetis increases biodiesel market share in India mining sector

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Aemetis’ Universal Biofuels India subsidiary has been awarded a biodiesel supply contract with the three India government-owned oil marketing companies (OMC) in a public tender process.

The contract provides for ongoing deliveries of biodiesel to a variety of blending locations in an aggregate amount of more than $23 million during 2019 and is tied to the mining sector, Aemetis said. Biodiesel shipments are scheduled to begin this month.

The company said: “The total diesel market in India is approximately 25 billion gallons per year with 80% imported, of which less than 250 million gallons per year of biodiesel is currently blended.

“The 2018 National Biofuels Policy stated a plan to increase biodiesel blending to 5% of the diesel market, equal to more than 1.2 billion gallons per year. The OMCs in India supply about 70% of the fuel consumed in India, and the diesel fuel market has been growing at a rate of more than 5% per year.”

Eric McAfee, Chairman and CEO of Aemetis, said: “With the recent completion of our plant pre-treatment unit and expansion to 50 million gallons of capacity per year from low cost, high free fatty acid feedstock, the Aemetis team in India is executing on a rapid increase in production and revenues this year by broadening our customers to include government, logistics, mining, retail fuel stations and other sectors.

“As the only US company producing biofuels in India, Aemetis built and has now fully upgraded our India biodiesel and refined glycerin plant to use low cost feedstocks as a leader in this rapidly expanding market.”