In the News

Phys.org

July 17, 2017

The concentration of ultrafine particles less than 50 nanometers in diameter rose by one-third in the air of São Paulo, Brazil, when higher ethanol prices induced drivers to switch from ethanol to gasoline, according to a new study by a Northwestern University chemist, a National University of Singapore economist and two University of São Paulo physicists.

Environmental protection agencies across the world currently do not measure or regulate particles of this size, which studies have shown to be harmful to human health.

The research team also found when São Paulo drivers—some two million of them—switched back to ethanol because prices had gone down, the concentration of ultrafine particles also went down. This lockstep movement illustrates a very tight correlation between fuel choice and nanoparticles in the air.

"We studied São Paulo, but there are many North American cities, including Chicago, with similar air chemistry, especially spring through fall," said Franz M. Geiger, professor of chemistry in Northwestern's Weinberg College of Arts and Sciences.

"The push we are seeing in large cities away from gasoline and toward vehicles powered by ethanol, electricity or a mix of the two will result in a reduction of these ultrafine particles. This likely comes with a health benefit—these particles, below one micron, have the potential to get deeply into your lungs," he said.

Geiger and Alberto Salvo, an associate professor of economics at the National University of Singapore, led the unusual study—their second with São Paulo big data. The fact that São Paulo consumers can and do switch between fuels for reasons unrelated to air quality provided the researchers with a real-world laboratory for studying the effects of human behavior at the fuel pump on urban air pollution.

The study will be published July 17 by the journal Nature Communications. The prospect of increased biofuel use and mounting evidence on ultrafines' health effects make the results policy relevant, the authors write.

"With this knowledge, we hope more money and human resources will be invested in trying to understand and possibly monitor these ultrafine particles," said Salvo, who formerly was with Northwestern's Kellogg School of Management. "The big unknown is what type of particles are the most harmful to health."

The interdisciplinary team conducted a regression analysis of traffic, consumer behavior, aerosol particle size and meteorological data from January 2011 through May 2011. The data studied was from before, during and after the time of a major fuel switch due to a large fluctuation in ethanol prices.

The researchers also found the choice of fuel had no effect on the concentration of larger particles. These particles include fine particulate matter 2.5 microns in diameter (PM2.5) down to particles 100 nanometers in diameter. The U.S. and many other countries regulate PM2.5, but particles smaller than PM2.5 are not regulated.

Geiger and Salvo were fortunate to have access to aerosol particle size distribution data from an unrelated research project overseen by Paulo Artaxo and Joel Brito at the University of São Paulo. Artaxo and Brito's experiments captured data from before, during and after the major fuel switch. They are co-authors of the Nature Communications paper, along with Geiger and Salvo.

The Nature Communications study builds on an earlier study in which Geiger and Salvo found that an increase in ethanol use resulted in a significant increase in ozone concentrations in São Paulo. Officials, Geiger said, will need to weigh the increase in ozone against the decrease in nanoparticles when ethanol is used.

Next, for the third chapter of the story, the research team would like to determine what happened in terms of health outcomes in São Paulo as cars switched out of gasoline to ethanol and back to gasoline.

The paper is titled "Reduced ultrafine particle levels in São Paulo's atmosphere during shifts from gasoline to ethanol use."

Explore further: Study shows lower ozone pollution in Sao Paulo when drivers switched from ethanol to gasoline

Read the original story: Tiny Particles Increase in Air with Ethanol-to-Gasoline Switch

Agri-Pulse

July 12, 2017

By Sandra Cowherd

MINNESOTA, July 12, 2017 - In its latest newsletter, Minnesota-based Al-Corn Clean Fuel announced its undenatured yield averaged 2.911 gallons of ethanol per bushel in the second quarter. The co-op said this moved production closer to the “magic number” of 3 gallons of fuel ethanol per bushel. The increased yield was achieved through enhanced focus on current operations and improvements from a major expansion, which added new fermenters and addressed flooding issues.

Read the original story: Al-Corn Ethanol Production Closes in On 3-gallon Per Bushel Goal

Ethanol Producer Magazine

July 12, 2017

By Erin Voegele

The U.S. EPA has announced plans to hold a public hearing Aug. 1 in Washington, D.C., for its recently released rule to set 2018 renewable volume obligations (RVOs) under the Renewable Fuel Standard, along with the 2019 RVO for biomass-based diesel.

The agency released a prepublication version of the proposed rule on July 5. The proposal calls for approximately 19.24 billion gallons of renewable fuels to be blended into the national fuel supply next year. This includes 238 million gallons of cellulosic biofuel, 2.1 billion gallons of biomass-based diesel and 4.24 billion gallons of advanced biofuel. For 2019, the new proposal calls for the biomass-based diesel RVO to be maintained at 2.1 billion gallons.

In a notice posted to its website, the EPA said the hearing aims to provide interested parties the opportunity to present data, views, or arguments concerning the proposal. The agency may ask clarifying questions during the hearing, but will not respond to presentations at that time. Written statements and supporting information submitted during the public comment period will be considered with the same weight as information presented at the hearing.

Those wishing to testify at the hearing should notify the EPA by July 25. Additional information is available the EPA website

The EPA is expected to open a 45-day public comment period on the proposed rule following its publication in the Federal Register. A prepublication version of the rule can be downloaded from the EPA website.

Read the original story: EPA schedules hearing on RFS proposal for Aug. 1

Agri Pulse

July 10, 2017

By Ron Wulfkuhle

July 10th is U.S. Energy Independence Day, a time to celebrate Earth-friendly American ethanol. Last year alone, the ethanol industry created and supported 340,000 jobs and contributed roughly $42 billion to the U.S. Gross Domestic Product (GDP) – a number exceeding the total GDP of many countries. And, the production of more than 15 billion gallons of ethanol meant that the U.S. needed to import approximately 540 million fewer barrels of crude oil to meet the country’s demand for gasoline.1

One key to the future success of the U.S. ethanol industry, however, will be increased access to higher ethanol blends, such as E15. To date, American drivers have surpassed 1 billion miles on E15 and E15 is currently sold at more than 800 retail outlets across 29 states, with expansion expected to double.2 Greater access to E15 though, including during the high-volume, gasoline consumption summer months, is essential.

Looking ahead, retail partnerships will be key to continuing to expand the availability for higher ethanol blends. Earlier this year, Syngenta announced a $340,000 donation to the Prime the Pump Fund. Prime the Pump is helping high-volume, progressive-minded and industry-leading fuel retailers, who will demonstrate the performance, cost savings and profit opportunity of marketing higher ethanol blends, such as E15.

According to Growth Energy, the vehicles that E15 is approved for account for more than 87 percent of all those on the road today. And, nearly 20 million vehicles are approved for any blend of ethanol up to 85 percent ethanol. Clearly, we have the vehicles capable of using blends higher than E10, but consumers need greater access to stations capable of providing it. Efforts like Prime the Pump will help make that access a reality. The widespread availability of flex-fuel vehicles – as well as those eligible to use E15 – demonstrates that there is a market ready for a less expensive, higher octane, more environmentally friendly alternative fuel.

Consumers across the USA clearly benefit from the reduced cost of ethanol and lower emissions. However, rural America, specifically small towns and communities, benefit greatly as well. Syngenta’s Enogen® corn enzyme technology is one example of a technology advancement that allows ethanol plants to pay premiums to corn growers. These premiums are substantial with likely payouts of $34 million from ethanol plants to corn growers in rural communities this year alone. These dollars are then circulated in these communities, helping to generate tax dollars for schools and roads and keeping rural America vitalized.

New technologies are also helping to make ethanol even more sustainable. For example, approximately 10 percent of the corn kernel dry weight is fiber, and converting corn kernel fiber feedstock to cellulosic ethanol has been possible for some time. However, recent advances in technologies can enable commercial deployment today. In fact, the approximately 12 million tons of corn kernel fiber feedstock already available at U.S. dry grind ethanol plants each year could produce a potential 1.5 billion gallons of cellulosic ethanol – with no additional corn.3

In 2014, the U.S. Environmental Protection Agency added corn kernel fiber to the list of qualifying cellulosic biofuel feedstocks as part of the Renewable Fuel Standard (RFS). That same year, using Cellerate™ process technology, Quad County Corn Processors (QCCP) was the first commercial cellulosic facility – using corn kernel fiber as feedstock – and achieved EPA certification to generate D3 RINs. Through November 2016, QCCP’s output represented approximately 85 percent of D3 RIN ethanol produced.4 To date, QCCP has produced more than 6 million gallons of cellulosic ethanol.

Since the passage of the Energy Policy Act of 2005, ethanol has become an important success story. Ethanol is helping America reduce its dependence on foreign oil, lowering prices at the pump, improving the environment with lower emissions, and growing the economy with jobs that can’t be outsourced. Syngenta is proud to partner with corn growers and the ethanol industry to help provide consumers with the choice to purchase a superior, higher octane fuel and pay less.

Read the original story: Opinion: Increased Access to E15 Will Help to Drive U.S. Energy Independence

 

Congressman Collin Peterson

July 6, 2017

Press Release

Congressman Collin C. Peterson (D-Minn.) released the following statement after the Environmental Protection Agency (EPA) revealed its proposed renewable volume obligations (RVO) for 2018 and 2019 as required by the Renewable Fuel Standard.

“I am pleased that EPA correctly recognized corn ethanol as a robust industry capable of producing 15 billion gallons as required by statute,” Peterson said. “I will continue to work with EPA on market access issues like the Reid Vapor Pressure fix which is needed to improve consumer choices at the pump."

By law, EPA is required to release its final RVO numbers for 2018 and 2019 by November 30, 2017. Read the original release: Peterson on the EPA’s RFS Proposal

Senator Amy Klobuchar

July 5, 2017

Press Release

WASHINGTON, D.C. – U.S. Senator Amy Klobuchar (D-MN), a member of the Senate Agriculture Committee, issued the following statement following the release of the Environmental Protection Agency’s proposed 2018 and 2019 Renewable Fuel Standard volume requirements.

“Renewable fuels are a homegrown economic generator for Minnesota and for our country. It is good that the Administration has maintained ethanol volume requirements for 2018 and 2019. At the same time, reducing the blend targets of advanced biofuels could short-change the growth of clean energy innovation that creates jobs and strengthens rural communities. It is critical that the final rule is stronger for advanced biofuels and I will work with the Administration to push for improvements that support biofuel production in Minnesota and around the United States." 

For years, Klobuchar has led a bipartisan push for the EPA to release a stronger RFS to support American jobs and decrease dependence on foreign oil. Last November, the former Administration released a stronger final rule for 2017, which will require a record amount of biofuel to be mixed into our transportation fuel supply next year. Minnesota’s twenty ethanol plants and three biodiesel plants generate roughly $5 billion in combined economic output and have made our state the fourth-largest ethanol producing state in the country. In April, Klobuchar and Senator Chuck Grassley (R-IA) led a bipartisan group of 23 senators in urging the Administration to reject changes to the RFS that would upend stability and predictability for small businesses and rural communities.

Read the original release: Klobuchar on EPA Release of Proposed Renewable Fuel Standard Requirements

Senator Al Franken

July 5, 2017

Press Release

Sen. Al Franken issued the following statement after the Environmental Protection Agency (EPA) announced its proposed Renewable Fuel Standard (RFS) targets for 2018.

The new proposal would allow the biofuel industry to blend 4.24 billion gallons of advanced biofuels-like biodiesel-and 15 billion gallons of ethanol into our nation's fuel supply during 2018.

"The Renewable Fuel Standard creates good jobs, promotes homegrown energy, and decreases our nation's reliance on foreign oil," said Sen. Franken. "While I'm pleased that the administration plans to maintain the 15 billion gallon target for conventional ethanol, the targets for biodiesel and other advanced biofuels fall short of what the industry is capable of producing. EPA Administrator Scott Pruitt has said the final rule will be out by the end of November, and I'll be doing everything I can to push the administration to strengthen the RFS for producers in Minnesota and across our nation."

The RFS was created as a way to expand our country's energy portfolio by requiring that gasoline is blended with renewable fuels like ethanol and biodiesel.

Read the original release: Sen. Franken’s Statement on the Proposed 2018 Renewable Fuel Standard Targets

EPA

2017 Announcements for the Renewable Fuel Standard

Proposed Volume Standards for 2018, and the Biomass-Based Diesel Volume for 2019

Rule Summary:

On July 5, 2017 EPA issued proposed volume requirements under the Renewable Fuel Standard program for cellulosic biofuel, advanced biofuel, and total renewable fuel for calendar year 2018.  EPA also proposed biomass-based diesel volume standards for calendar year 2019.  The proposed volume requirements are listed in the table below.

2017 RVOs RFS

Additional Resources:

Proposed rule (PDF)(89 pp, 849 K, pre-publication, signed July 5, 2017, About PDF)