Stillwater Technology Development

As California Burns, Diesel Trucks Clean the Air

August 25, 2020 ,

August 25, 2020 By Gary Yowell For the past week, dozens of lightning-induced wildfires have raged in California, resulting in unhealthy, smoke-laden air. The air quality is so poor that it has exceeded particulate matter (PM10 and PM2.5) ambient air quality standards. PM10 is smoke that can be trapped on a 10-micron filter, PM2.5 is even smaller smoke particles that...
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How Does California’s New Advanced Clean Trucks Rule Affect Diesel Demand?

July 13, 2020 ,

July 13, 2020 By Gary Yowell On June 25, 2020, the California Air Resources Board (CARB) adopted the Advanced Clean Trucks (ACT) rule which seeks to accelerate the adoption of zero-emission vehicles (ZEVs) in the medium-and heavy-duty truck sector and reduce harmful emissions generated from on-road mobile sources. Medium- and heavy-duty vehicles include the largest and heaviest pickup trucks and...
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The Search for Zero

July 6, 2020 , ,

July 6, 2020 By Adam Schubert A number of Stillwater’s clients come to us with questions concerning ethanol-free gasoline (E0).  These questions include items such as: Who uses E0 and why? How much E0 is being sold and where? What are the economics behind the product? In this article, we provide brief answers to those questions and more. Before diving...
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Food for Thought: Overly Aggressive NOx Reduction Has Delayed California’s Ozone Attainment by 15 Years

February 12, 2020 , ,

February 12, 2020 By Gary Yowell The California Air Resources Board (CARB) has a long and proud history of ambitious reductions to air pollution which CARB deems necessary to meet ambient air quality standards. Continuing this 50-year trend, CARB is considering reducing its heavy-duty vehicles’ nitrogen oxides (NOx) standard by 90%. This new NOx standard[1] would require extensive and expensive...
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95 RON Gasoline and the Political CAFE Ping-Pong Game

January 15, 2020 , , , ,

January 15, 2020 By Ron Pike In an effort to further reduce hydrocarbon consumption in the U.S., 95 RON (Research Octane Number) gasoline has been suggested as a way to help achieve proposed higher corporate average fuel economy (CAFE) requirements. A higher RON allows an internal combustion engine to run at a higher compression ratio, achieve more power, and, therefore,...
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An Updated Guide to EPA’s Tier 3 Gasoline Sulfur Standards

January 5, 2020 , , , , ,

January 5, 2020 by Mike Leister and E.J. Ledet Effective January 1, 2017, the U.S. Environmental Protection Agency (EPA) began requiring all U.S. gasoline to meet an annual 10 parts per million (ppm) average sulfur requirement as part of its new Tier 3 vehicle and fuel regulations. (Stillwater wrote a quick guide to Tier 3 back then, and it’s still...
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Clean Marine Fuel in 2020: An Opportunity for Biofuel?

September 1, 2019 , ,

September 1, 2019 by Mike Newman of Parhelion Underwriting  2018 saw the shipping industry take its first steps towards addressing the challenge of climate change when, at its 72nd session in April, IMO’s Marine Environment Protection Committee (MEPC) adopted an initial strategy to reduce greenhouse gas (GHG) emissions from shipping by at least 50% by 2050. The United Nations body...
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How Do ZEV Emissions Stack Up Against Super-Clean Gasoline and Diesel Engines?

August 21, 2019 , , ,

August 21, 2019 by Gary Yowell In 1990, California adopted the Zero Emission Vehicle (ZEV) Mandate designed to help achieve the state’s long-term emissions reduction goals by requiring manufacturers to sell specific quantities of battery-electric, fuel cell, and plug-in hybrid electric vehicles. The ZEV mandate has seen several modifications over the past three decades, and now there is a growing...
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Sustainable Aviation Fuels Prepare for Takeoff in Washington State

March 13, 2019 , ,

March 13, 2019 By Kendra Seymour My colleagues Megan Boutwell, Jim Mladenik, and I attended the first-ever Washington Sustainable Aviation Fuels (SAF) Summit last week in Seattle. The summit was hosted by Earth Day Northwest 2020 and presented by Boeing, Alaska Airlines, Delta Air Lines, and the Port of Seattle. Washington Governor and U.S. Presidential Candidate Jay Inslee even made...
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CORSIA 101 – A Beginner’s Guide

February 20, 2019 , ,

What is CORSIA? CORSIA (the Carbon Offsetting and Reduction Scheme for International Aviation) is a program administered by the International Civil Aviation Organization (ICAO) with a goal of capping CO2 (carbon) emissions from international aviation at 2020 levels. A future goal is to reduce net carbon emissions fifty percent by 2050 compared to 2005 levels. Carbon emissions from domestic aviation...
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U.S. LNG Bunkering Implementation and Safety Practices

February 1, 2019 ,

February 1, 2019 By John Wolff On December 4, 2018, the U.S. Coast Guard (USCG) hosted its 2018 Liquefied Gas Senior Executive Forum in Houston. The program was co-sponsored by the Society of International Gas Tanker and Terminal Operators (SIGGTO) and the Society of Gas as a Marine Fuel (SGMF). The forum’s speakers addressed many aspects of using LNG as...
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War Story: “Go figure it out”

October 15, 2018 , , , ,

by Brian Conroy When Stillwater Associate Brian Conroy worked for BP in 2006 as Global Sales and Market Development Manager of Specialty Chemicals, he was offered an opportunity to try something new. With a background in chemicals, beginning in research and progressing to various roles in business, he was ready for the change. BP’s CEO had mandated the launch of...
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War Story: California’s Lengthy Multi-Media Evaluation Process

September 12, 2018 , , ,

September 12, 2018 By Jessica Loomis Twenty years ago, methyl tert-butyl ether (MTBE) was a common additive used to oxygenate and raise the octane number in gasoline, but when incidents of MTBE leaking occurred from underground storage tanks at gas stations in California, groundwater contamination became a growing issue. MTBE isn’t particularly toxic, but its taste and odor can render...
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The Renewable Fuel Standard – Part 3: Where to from here? 

September 1, 2018 , ,

September 1, 2018 by Brian Conroy  This is the third and final segment in a series of articles on the Renewable Fuel Standard (RFS). In part one, we discussed the context around the passage of RFS. Part two covered the program’s primary goals and the progress to-date toward each goal. Today we conclude our series by looking down the road to discuss a new way to think about...
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Bio-Isobutanol – Overview and Challenges 

July 8, 2018 , ,

July 8, 2018 by Adam Schubert  On June 12th, 2018 the U.S. Environmental Protection Agency (EPA) announced that it had granted to Butamax Advanced Biofuels, LLC (Butamax) registration of blends of up to 16 volume percent (vol%) isobutanol in gasoline. Prior to granting this registration, EPA took the unusual step of seeking public comment due to, as EPA put it, the significant possibility that such isobutanol-gasoline blends had the potential for widespread use.   Overview  Butamax and its competitor, Gevo, have...
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FLASH ANALYSIS: CARB’s Latest LCFS Rulemaking – Are the goalposts moving?

February 22, 2018 , ,

February 22, 2018 On February 20th, the California Air Resources Board (CARB) released Unofficial LCFS Rulemaking Documents for public review. These proposed amendments will be considered at a CARB Board hearing in April 2018 and voted on at a second hearing in mid-to-late 2018. In the past, CARB has released draft rulemaking documentation before public workshops, but this release –...
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California Carbon Info: Analysis of CCO usage for 2016 compliance obligation

February 10, 2018 , , ,

As the passage of AB 398 has strengthened and extended California’s Cap and Trade program, we think our readers will benefit from a spotlight on the trends in the carbon credit market. As such, we periodically feature guest articles on California’s Cap and Trade program from our friends at CaliforniaCarbon.info. CaliforniaCarbon.info is a comprehensive information service covering the Western Climate Initiative...
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What’s New in California’s Final 2017 Climate Change Scoping Plan?

January 17, 2018 , ,

January 10, 2018 By Miriam Stern Last month, the California Air Resources Board (CARB) approved the final version of California’s 2017 Climate Change Scoping Plan, a blueprint for reducing Greenhouse Gas Emissions (GHGs), bolstering clean energy, and improving air quality. We previously summarized the proposed Scoping Plan (drafted early last year), and, while the overall framework in the final plan...
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California Carbon Info: California Emissions Decline Faster than Cap in 2016

November 6, 2017 , , , ,

As the passage of AB 398 has strengthened and extended California’s Cap and Trade program, we think our readers will benefit from a spotlight on the trends in the carbon credit market. We will be featuring guest articles on California’s Cap and Trade program from our friends at CaliforniaCarbon.info. CaliforniaCarbon.info is a comprehensive information service covering the Western Climate Initiative...
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California Carbon Info: Analyzing California’s offset demand

September 13, 2017 , , , ,

As the passage of AB 398 has strengthened and extended California’s Cap and Trade program, we think our readers will benefit from a spotlight on the trends in the carbon credit market. Starting this month, we will be featuring guest articles on California’s Cap and Trade program from our friends at CaliforniaCarbon.info. CaliforniaCarbon.info is a comprehensive information service covering the...
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California’s 2030 Scoping Plan: Changes for the Transportation Fuels Sector

June 6, 2017 , ,

June 6, 2017 by Kendra Seymour Introduction Last week President Trump withdrew the U.S. from the historic Paris Climate Agreement, signaling a lack of commitment at the federal level to combatting climate change. Many states, municipalities, and companies, however, have voiced continued support for the Paris Agreement and have affirmed their intention to fulfill the tenets of the Agreement. Sub-national...
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Another upset at the Torrance Refinery

November 17, 2016 , ,

November 16, 2016 The former ExxonMobil refinery in Torrance, CA experienced an upset this week. As news helicopters circled above, the local fire department fought a fire that appeared to be in the alkylation unit. Thankfully, the media were reporting yesterday that there were no serious injuries. Today, OPIS reported that the refinery was back operating at full rates, although...
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What Accounts for the Recent Surge in Cellulosic Biofuels Production?

May 19, 2015 ,

May 7, 2015   by Dave Hirshfeld, MathPro Inc. EPA has pledged to issue proposed renewable fuels volume requirements for 2014, 2015, and 2016 by June 1 and final renewable fuels volume requirements for all three years by November 30. These volume requirements set the annual Renewable Volume Obligations (RVO) for refiners and other obligated parties with respect to renewable...
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