(VTT) Power-to-liquids technologies are on their way to commercialisation in scale and production of synthetic e-fuels is no longer science fiction. E-fuels offer a way to expand the carbon-neutral transport
Tag "precursors/biointermediates"
(Ripon Advance News Service) U.S. Reps. Mariannette Miller-Meeks (R-IA) and Ashley Hinson (R-IA) joined U.S. Sen. Joni Ernst (R-IA) and their Iowa Republican colleagues in urging the Biden administration to address
by Jim Lane (Biofuels Digest) Virent, a subsidiary of Marathon Petroleum developed its BioForming technology to create fuels and chemicals from a wide range of naturally occurring, renewable resources. And
by Tom Bryan and Katie Schroeder (Ethanol Producer Magazine) Hundreds gathered for the main session of 38th International Fuel Ethanol Workshop & Expo Tuesday in Minneapolis, Minnesota, as some of the
by Craig Bettenhausen (Chemical & Engineering News) Airlines are eager to switch to renewable, low-carbon fuel—as soon as there’s enough to go around — On June 6, Malaysia Airlines flew
by Gaulthier Blangez* (Time to Fly and Advanced Biofuels USA) Advanced Biofuels USA, in collaboration with Time to Fly, is proud to publish a guide to sustainable aviation fuels (SAF)
by James Temple (MIT Technology Review) The startup used plant matter and bio-oil to sequester thousands of tons of carbon. The question now is how reliable, scalable, and economical this
by Gary Martin (Las Vegas Review-Journal) A Nevada plant can begin turning tons of garbage into a synthetic oil that can be refined into fuel for airplanes after an Environmental Protection
by John Fialka (E&E News) The Department of Energy and Southwest Airlines are teaming up to test the technologies needed to turn farm waste into jet fuel. A partnership between
by Jim Lane (Biofuels Digest) Licella’s Cat-HTR decarbonization platform could help customers meet their net-zero carbon commitments, said Dr. Alan Del Paggio, Licella’s SVP Americas, at the recent ABLC. How
by Josh Pedrick, Arsalan Syed and Corey Lavinsky (S&P Global) As the US ethanol industry pursues carbon capture and sequestration projects, producers are looking at the effects of lower carbon intensities
(Southwest Airlines/PR Newswire) Carrier’s first-of-its-kind investment supports the development of technology intended to commercialize sustainable aviation fuel — Southwest Airlines Co. (NYSE: LUV) (“Southwest” or the “Company”) today announces an investment into
(Johnson Matthey/Biobased Diesel Daily) Johnson Matthey and BP announced May 25 that their codeveloped, groundbreaking Fischer Tropsch CANS™ technology and Johnson Matthey’s innovative reverse water gas shift technology, HyCOgen™, have been
(Fulcrum BioEnergy) World’s first waste to fuels plant achieves major milestone with the production of syngas from landfill waste — Fulcrum BioEnergy, Inc., a pioneer in the creation of net-zero carbon,
by Luke Geiver (Ethanol Producer Magazine) The world’s major airlines are racing to decarbonize air travel by backing and using sustainable aviation fuel. Much of it is now being produced
(Coryton) … Consequently, Coryton firmly believes that we need to move away from the focusing on the tailpipe emissions as this effectively 1) ignores the upstream carbon emissions associated with
(Renewable Carbon Initiative) CO2 Reduction potential of the chemical industry through carbon capture and utilisation (CCU); Renewable Carbon Initiative (RCI), CO2 Value Europe (CVE) and nova-Institute publish a study showing
(NEXT-ChemX Corporation/Globe Newswire) NEXT-ChemX Corporation’s (OTC: CHMX) Chief Scientist, Dr. Nikolai Kocherginsky and Chemical Engineer, Sumukh Metawala, made a presentation entitled “Membrane-Based Oil & Biodiesel Washing” during the 2022 American Oil Chemists’ Society
by Helena Tavares Kennedy (Biofuels Digest) Alder Fuels’ Chief Technology Officer, Derek Vardon, shared this illuminating slide guide at ABLC highlighting how they are seeing a future of gathering energy
(U.S. Department of Energy) Since 2018, a multi-laboratory consortium, funded by the U.S. Department of Energy Bioenergy Technologies Office (BETO) and guided by an industrial advisory board, has focused on adding co-processing of
by Jim Lane (Biofuels Digest) BTG Bioliquids develops fast pyrolysis technology and FPBO applications as well as the commercialization of such technology and production of fast pyrolysis bio-oil. The BTG team
by Jim Lane (Biofuels Digest) There’s Big Oil, Big Ag, Big Tech, Big Pharma there’s the Big Apple, the Big Easy, and now that Enerkem is joining the ranks of the
(Porsche) Porsche is investing USD 75 million in HIF Global LLC. In return, the sports car manufacturer is acquiring a long-term stake in HIF Global LLC, a holding company of
(Sekisui) Aiming to Build a New Social System for Resource Recycling — SEKISUI CHEMICAL CO., Ltd. (President and Representative Director, Keita Kato; hereinafter, “SEKISUI CHEMICAL”), INCJ, Ltd. ( President and COO,
by Jim Lane (Biofuels Digest) There’s a difference between renewable carbon and circular carbon, as noted in this illuminating ABLC slide guide from Axens. How does their circular carbon tech
by Erin Voegele (Biomass Magazine) The Canadian government on March 30 awarded funding to several biofuel and bioenergy projects, including those focused on liquid transportation fuels, biocarbon, renewable natural gas (RNG),
(nova Institute) Large scale investments in CO2-based ethanol, methanol and aviation fuel are just around the corner – supporting climate protection and independence from fossil fuels. Participants of the “Conference on
by S. Heather Duncan (Oak Ridge National Laboratory) Scientists with the Center for Bioenergy Innovation at ORNL highlighted a hybrid approach that uses microbes and catalysis to convert cellulosic biomass
by Christopher Surgenor (GreenAir Online) SWISS and the Lufthansa Group have entered into a strategic collaboration with solar aviation fuel pioneer Synhelion, which will enable SWISS to become the first airline to
(Bio Market Insights) Around 3.5 billion years ago, plants became able to turn sunlight and carbon dioxide into energy. Researchers in the field of artificial photosynthesis are figuring out how humans
by Jim Lane (Biofuels Digest) How do we address the growth and emissions of the aviation sector? How does Alder Fuels enable the conversion of biomass into transportation fuels? How
RNG, Renewable Fuels from Solar, Waste Wood & Carbon: The Digest’s 2022 Multi-Slide Guide to Aemetis
by Jim Lane (Biofuels Digest) Third generation tech is what Aemetis calls it – using renewable fuels for carbon capture & sequestration siphons carbon from the atmosphere into crops which
(AECOM) AECOM, the world’s trusted infrastructure consulting firm, today announced it has signed a strategic agreement with Genifuel Corporation to scale production of carbon neutral sustainable aviation fuel (SAF) and biogas
by Jim Lane (Biofuels Digest) NREL is focusing on commodity productswith sufficient market sizes to aid biofuels production (e.g., adipic acid), working with Lignin Util. & SepConfor lignin substrates, and
by Martina Gini (Earth.org) … Over 370,000 flights have taken to the skies using SAF since 2016 and it is estimated that implementing this fuel could contribute nearly 65% to the reduction in
by Valerie Sarisky-Reed (U.S. Department of Energy) … The journal Nature Biotechnology recently published a paper featuring cutting-edge work funded by the U.S. Department of Energy’s Bioenergy Technologies Office (BETO). The article details
(Chemical Processing) Novel electrocatalyst-based system operates at mild conditions and produces hydrogen — A research team at the U.S. Department of Energy’s Pacific Northwest National Laboratory (PNNL), Richland, Wash., has developed a patent-pending system
by Jim Lane (Biofuels Digest) Bruce Dannenberg, CEO of Phytonix shared this illuminating slide guide at ABLC Connect highlighting how Phytonix utilizes cyanobacteria engineered via synthetic biology to produce 1-butanol
by Jim Lane (Biofuels Digest) … Topsoe’s Mikala Grubb stepped in. “What we have is a solids to liquids conversion problem.” The room went quiet, quiet like a church. “750 delegates
(Greasezilla) Downey Ridge Environmental Company, developer of Greasezilla® fats, oils and grease (FOG) and used cooking oil (UCO) separation and processing system, is partnering with LEND Environmental to accelerate recycling
by Andreea Moyes and Peter Nowobilski (AIR bp and bp/Biofuels Digest) With the aviation industry committed to curtailing lifecycle carbon emissions, sustainable aviation fuel (SAF) has an important role to play.
by Jim Lane (Biofuels Digest) In Illinois, news arrived that LanzaTech will go public in a merger with the NASDAQ-traded blank check firm AMCI Acquisition Corp II. The deal is reported
by Erik F. Ringle (National Renewable Energy Laboratory) With Extensive Data, Broad Analyses, and Detailed Models, NREL Scientists and Collaborators Stake the Boundaries of Producing Chemicals and Fuels From Carbon Dioxide,
by Larry Lee (Brownfield Ag News) The ethanol industry is working to expand further into the renewable jet fuel market. A panel of ethanol researchers and fuel producers told their colleagues and
(Renewable Fuels Association) In his annual State of the Industry Address, Renewable Fuels Association President and CEO Geoff Cooper said that, while the U.S. ethanol industry has a long history of capitalizing
by Jim Lane (Biofuels Digest) Converting low-value biomass to bio-crude oil upgradable to advanced biofuels and chemicals at existing refineries via hydrofaction is hot. Find out how Steeper Energy is
by Helena Tavares Kennedy (Biofuels Digest) Just in the last few days, it’s been all about low carbon, lower carbon, net-zero carbon – and all of it from waste. Virgin Group
(Comstock Mining) Technologies Enable Dramatic Reduction in Carbon Intensity for America’s Decarbonization Portfolio — Comstock Mining Inc. (NYSE: LODE) (“Comstock” and the “Company”) today announced its submission of comments to the
RFA Supports EPA’s Proposed 2022 RFS Volumes, Urges Agency to Abandon Retroactive Cut to 2020 Volume
(Renewable Fuels Association) In comments submitted today (February 4, 2022) to the U.S. Environmental Protection Agency, the Renewable Fuels Association expressed strong support for the agency’s proposed 2022 renewable volume obligations (RVO)
by Erin Voegele (Ethanol Producer Magazine) Members of the biofuel industry who wish to comment on the U.S. EPA’s proposed rule to set 2020, 2021 and 2022 Renewable Fuel Standard renewable
(U.S. Department of Energy) The U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Bioenergy Technologies Office (BETO) has released a new request for information (RFI) on several priority areas
by Helena Tavares Kennedy (Biofuels Digest) Like a feeding frenzy that doubles Godzilla’s size, in West Virginia, Downey Ridge Environmental Company, developer of Greasezilla FOG (fats, oils & grease) separation and
by Mikala Grubb (Haldor Topsoe) The global transition to sustainably produced fuels offers refiners, biorefiners, and investors a once-in-a-generation-sized opportunity. The key to taking it will be advanced feedstocks, as
by Jim Lane (Biofuels Digest) In recent days, we’ve had 10 stories that shook the world. The players are so big, the technologies so ambitious, the scale so huge and the
(Johnson Matthey/PR Newswire) – Launch of HyCOgen will play a key role in enabling captured CO2 and green hydrogen to be converted into sustainable aviation fuel; – In combination with FT CANSTM technology, Johnson Matthey delivers an integrated, scalable
(UGI Corporation) UGI Corporation (NYSE: UGI) announced today that it has entered into a 15-year agreement with California-based technology developer, Vertimass, to utilize their catalytic technology to produce renewable fuels from renewable-ethanol in the U.S. and Europe.
by Douglas L. Faulkner and Michael McAdams (Leatherstocking LLC /“The Cleantech Conservative” and Advanced BioFuels Association/Biofuels Digest) … The Agency has now moved to approve bio-intermediates, so that manufacturers could earn
by Helena Tavares Kennedy (Biofuels Digest) 6 DOE National Labs and 6 Universities are partners with the Joint BioEnergy Institute to help transform the maximum amount of carbon available in bioenergy
by Jim Lane (Biofuels Digest) A mere “The Year in Rewind” as we sail into 2022? Not the good ship Digest! Instead, we dust off our crystal ball and offer our
by Jim Lane (Biofuels Digest) As you wait for the clock countdown to 2022 today, check out this slide guide
by Susan van Dyk and Jack Saddler (IEA Bioenergy Task 39) Biojet/ Sustainable Aviation Fuels (SAF) must play a major

(Environmental Protection Agency/Federal Register) The Environmental Protection Agency (EPA) is announcing a virtual public hearing to be held on January
by Mallikarjun Navalgund (Praj Industries/Biofuels Digest) … Ethanol is a currently available solution and is being deployed to mitigate emissions from
by Jim Lane (Biofuels Digest) Did you know Avantium’s two lead products are FDCA, the chemical building block for PEF,
by Mark E. Griffin (University of Wisconsin–Madison) University of Wisconsin–Madison researchers have demonstrated a new process for transforming a plentiful
by Helena Tavares Kennedy (Biofuels Digest) Why they do what they do, what net-zero fuels really means, how agriculture and
(Blue Biofuels/Globe Newswire) Blue Biofuels, Inc. (PINK: BIOF) Blue Biofuels, Inc. (the “Company” or “BIOF”) and the United States Department of Agriculture’s Agricultural
by Helena Tavares Kennedy (Biofuels Digest) Zara clothing made from steel factory waste emissions thanks to LanzaTech, adidas and Allbirds scaling
by Erin Voegele (Ethanol Producer Magazine) The Biden administration has signaled its intent to publish a proposed rule setting Renewable Fuel
(National Renewable Energy Laboratory) In the Push To Settle the Red Planet, One Startup Company Thinks NREL’s Ethylene-Emitting Cyanobacteria Offer
(LanzaTech) Today, LanzaTech has announced a collaboration with Inditex that led to the design of a capsule collection for the retail
by Asanga Padmaperuma (U.S. Department of Energy) Techno-economic analysis is the first to model PNNL technology across wastewater facilities — Wastewater—American households
(Growth Energy) Today (December 7, 2021), Growth Energy CEO Emily Skor offered a mixed review of the U.S. Environmental Protection Agency’s
by Stephanie Kelly and Jarrett Renshaw (Reuters) The Biden administration is expected to propose expanding the kinds of renewable fuel production
by Jim Lane (Biofuels Digest) Gevo’s Chief Carbon and Innovation Officer, Paul Bloom, shared this illuminating slide guide at ABLC
(Sulzer Chemtech/Biofuels Digest) A broad range of Sulzer’s leading separation technologies are playing a key role in the EU funded project
(U.S. Department of Energy) The first United Airlines passenger flight to fly using 100% sustainable aviation fuel (SAF) will depart today
by Estella Shi (Hydrocarbon Processing) In October 2021, the EIA began publishing expanded data on biofuels other than ethanol in their
by Jim Lane (Biofuels Digest) If you missed the ABLC presentation by Andreas Reindl, Clariant’s Business Line Biofuels & Derivatives,
by Jacob Dick (Beaumont Enterprise) An expanding biofuels producer officially has selected a site in Beaumont as the new home for
by Craig Bettenhausen (Chemical & Engineering News) The deal would be an expansion for Gevo and a move away from
(Gevo) Gevo, Inc. (NASDAQ: GEVO) is pleased to announce it has signed a memorandum of understanding (MoU) with Sweetwater Energy,
by Erik Kobayashi-Solomon (Forbes) A visit this summer to New Zealand-American synthetic biology company, LanzaTech, opened my eyes to what
(Alder Fuels/PR Newswire) In a historic first, Colombia could become a “green” crude, carbon-negative exporter thanks to a strategic alliance between the Government
(Praj) Praj Industries Limited (Praj) and Indian Oil Corporation Limited (IndianOil) have inked an MoU to explore opportunities to fast-track
by Ken Colombini (Renewable Fuels Association) Three cities straddle the curve at the very south of Ohio: Huntington, W.Va.; South Point, Ohio; and
(Lummus Technology/PR Newswire) -Lummus and Braskem execute MoU for joint licensing two projects of leading technology to produce green ethylene
by Jim Lane (Biofuels Digest) It’s a simple idea, using renewable electricity to induce carbon dioxide and hydrogen to form a
by Jim Lane (Biofuels Digest) Baby, it’s cold outside, and LanzaTech is working on a flexible Alcohol-to-Diesel process for producing
by Kim Chipman (Bloomberg Green) …Shares of Green Plains Inc. rebounded to a seven-week high after the U.S. ethanol maker
by Richard Pallardy (Neste) Plant biomass, or lignocellulose, is the most abundant renewable carbon source on the planet. It has
(On, Inc./CISION) Swiss sports brand On leads supply chain coalition to reshape carbon waste into running shoes — Main Facts: – On announces
(Carbon Recycling International) Carbon Recycling International (CRI) and Johnson Matthey (JM) have agreed on a long term exclusive catalyst supply agreement
(Carbon Recycling International) … Chinese petrochemicals corporation Jiangsu Sailboat Petrochemicals Co. ltd has signed an agreement with Icelandic technology company Carbon
(AutoEvolution) A gorgeous Azure Purple Bentley Flying Spur Hybrid prototype just drove across Iceland using only energy from waste straw
(LanzaTech) LanzaTech to work with Spray Engineering Devices Limited on Sustainable Ethanol Project — Spray Engineering Devices Limited (SED), a multidisciplinary
by Jim Lane (Biofuels Digest) … So, here’s what our intrepid team led by Jeffrey Blackburn and Wei Xiong did. Knowing that plants have two
by Dominic Perry (Flight Global) Sustainable aviation fuel (SAF) producer LanzaJet is “just around the corner” from bringing the cost of
(Gevo) ADM (NYSE: ADM), a global leader in nutrition and agricultural origination and processing, and Gevo, Inc., (NASDAQ: GEVO), a pioneer
(Repsol (Google translation)) Repsol increases its renewable diesel production capacity from waste with the processing in the Coruñés complex of
by Park Sae-jin (Aju Business Daily) For the first time in the world, researchers from a state-run institute have found
(SEKAB) A hundred percent renewable gasoline has been developed by the Product Design Team at Repsol Technology Lab. The study
(Albert-Ludwigs-Universität Freiburg) Researchers find the enzymatic link in the formation of methane from fatty acids by cooperating microorganisms — Microbial production
by Ulrik Frøhlke (Haldor Topsoe) • With the demonstration plant, Topsoe will validate its electrified technology for cost-competitive production of
by Jim Lane (Biofuels Digest) Do biofuels have potential for the maritime sector? Should BETO implement a biofuels program for
(Gevo) Gevo, Inc. (NASDAQ: GEVO) and Axens North America, Inc. (Axens) have entered into an agreement that establishes a strategic alliance
(National Renewable Energy Laboratory) Scientists at the National Renewable Energy Laboratory (NREL) developed a fully integrated process to produce a promising
by Jim Lane (Biofuels Digest) If you missed the recent DigestWebinar, here’s your chance to delve into the tech emerging
(Biofuels International) LanzaTech is partnering with the Energy Department’s Argonne National Laboratory (ANL) to build and operate a pre-pilot facility to produce sustainable
by Jim Lane (Biofuels Digest) Dr. Pramod Kumbhar, President and CTO of Praj shared this illuminating slide guide on their
by Jim Lane (Biofuels Digest) If you missed the recent HydrogenConnect session, here’s your chance to check out the exclusive Digest
by Jim Lane (Biofuels Digest) Cellulose, lignin, wastes, proteins, starches – all biomass feedstocks, but what building blocks, secondary chemicals,
(Cision/Setra) Production is now underway at Pyrocell’s plant in Gävle. The new and groundbreaking factory is turning sawdust into bio-oil.
(Gevo) Gevo, Inc. (NASDAQ: GEVO), announced that it has received a patent from the United States Patent and Trademark Office (“USPTO”)
by Erik Kobayashi-Solomon (Forbes) As I explained in my first overview article in this series, LanzaTech is an industrial chemicals business. But to describe
(LanzaTech) The U.S. Department of Energy’s Bioenergy Technologies Office announced more than $64 million in funding for 22 projects focused on developing technologies
by Erin Voegele (Biomass Magazine) The U.S. Energy Information Administration on Sept. 3 for the first time released U.S. capacity data
by Jim Lane (Biofuels Digest) Licella commissions world’s largest operating hydrothermal liquefaction facility — In Australia, Licella has completed initial commissioning
(Blue Biofuels/Globe Newswire) Blue Biofuels, Inc. (the “Company”) is pleased to announce that it filed two more patents that follow on
(U.S. Department of Energy) Projects align with administration’s new goal of decarbonizing the aviation sector by 2050 – – As part
(White House) New Actions Aim to Produce Three Billion Gallons of Sustainable Fuel, Reduce Aviation Emissions by 20% by 2030,
(Gevo) Gevo, Inc. (NASDAQ: GEVO), announced that it plans to install an alcohol-to-hydrocarbon process pilot unit at its facility located in
by Jim Lane (Biofuels Digest) Want to know who’s doing what, where, how and with whom in renewable chemicals and biomaterials?
(Advanced Biofuels Canada/EIN Newswire) Advanced Biofuels Canada’s (ABFC) website now includes an interactive Sector Map that showcases its members’ North
by Jim Lane (Biofuels Digest) Enabling biorefineries to achieve 50% reductions in time to bioprocess scale-up, as compared to the
by Keith Button (Aerospace America) The air transport industry lacks enough suppliers of sustainable aviation fuel to meet the anticipated demand
(Colorado State University) Colorado State University scientists are partners in a three-year grant of up to $3.5 million from the Department
by Darius Snieckus (ReCharge) Prototype of innovative technology that will produce e-fuel using a pyrolysis oven to avoid generating CO2
(Emerging Markets Online) New study! Renewable Diesel & Sustainable Aviation Fuels 2030, Vol 2. (249 pages, August 2021) focuses on low-carbon
(Maersk) European Energy will establish a new e-methanol facility in Denmark and provide renewable energy to fuel it. — A.P. Moller
(Pacific Northwest National Laboratory/Phys.Org) A patented process for converting alcohol sourced from renewable or industrial waste gasses into jet or diesel
by Meghan Sapp (Biofuels Digest) In Washington, Koole Tankstorage Botlek B.V. (Koole) and Neste Oyj (Neste) asked the Envrionmental Protection Agency to
(Bio Market Insights) While it may sound like an unappealing bodily process, anaerobic digestion is a crucial method to create biogas
by Tom Brown (ICIS/Biofuels Digest) … A factor that could stand to drive wider deployment of biofuels could be its relative
by Jim Lane (Biofuels Digest) This week we are sharing some of the hottest 2021 ABLC Digital presentations and you won’t
by Zia Abdullah (National Renewable Energy Laboratory) National Renewable Energy Laboratory (NREL) researchers can accurately predict reaction rates and optimal
(U.S. Grains Council) Conclusions of a recently released study show growing ethanol use in India has been linked to increased demand
by Helena Tavares Kennedy (Biofuels Digest) … The good news is for the first time since the creation of the Innovation
by Jim Lane (Biofuels Digest) Algae biofuel AND high value co-products from residuals across algae strains? Are there co‐products that
by Jim Lane (Biofuels Digest) Where I come from, rubbish is used as a verb, meaning to denigrate, and there’s been
by Jim Lane (Biofuels Digest) LanzaTech’s Dr. Laurel Harmon shared this illuminating slide guide at the BETO Peer Review on
(Blue Biofuels) Alliance BioEnergy Plus Inc., DBA Blue Biofuels, (the “Company”) is pleased to announce that it filed 3 additional patents
by Jim Lane (Biofuels Digest) … Bio2oil was founded with the aim of commercializing the Hydrothermal Liquefaction technology (HTL). It’s a
by Jim Lane (Biofuels Digest) LanzaTech, Purdue and PNNL are working together to develop a commercially viable process to convert
(Maryland Energy Innovation Accelerator) MEIA ‘s 2021 Pitch Competition was a smashing success. Congratulations to Grand Prize winner Manta Biofuel, and
by Meghan Sapp (Biofuels Digest) In the Netherlands, Ship & Bunker reports that Vertoro has won a EUR2 million grant from
by Jim Lane (Biofuels Digest) You’ve probably seen the IATA Tech Roadmap and ICAO’s goals for aviation’s CO2 emissions to decrease,
Bioconversion Improvements: The Digest’s 2021 Multi-Slide Guide to Biorefinery Waste for Bioplastics
by Jim Lane (Biofuels Digest) Being in a big state, Texas A&M University has some big goals like overcoming the
by Jim Lane (Biofuels Digest) Dan Anderson from Pacific Northwest National Lab shared this illuminating slide guide at BETO’s Peer
Biofuels Producers Urge Changes to RFS Rule to Boost Aviation Fuel
(Inside EPA) Biofuels producers, airlines and others are urging changes to EPA’s proposed renewable fuel standard (RFS) rules to provide more flexibility to produce sustainable aviation fuel (SAF) that is