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http://gas2.org/2013/06/21/16-yr-old-evie-sobczak-turns-algae-into-bio
The US Environmental Protection Agency (EPA) has issued a proposed rulemaking for modifications to the Renewable Fuel Standard (RFS2) program. The proposal also includes various changes to the E15 misfueling mitigation regulations (E15 MMR), ultra low sulfur diesel survey requirements as well as other technical amendments.
The proposed rules include various changes related to biogas, including changes related to the revised compressed natural gas (CNG)/liquefied natural gas (LNG) pathway and amendments to various associated registration, recordkeeping, and reporting provisions. It also adds new pathways for renewable diesel, renewable naphtha, and renewable electricity (used in electric vehicles) produced from landfill biogas.
EPA is also proposing to allow butanol that meets the 50% GHG emission reduction threshold to qualify as an advanced biofuel. The rulemaking also proposes a clarification regarding the definition of crop residue to include corn kernel fiber and proposes an approach to approving the volume of cellulosic biofuels produced from various cellulosic feedstocks (the issue here being the percentage of cellulose in the feedstocks).
Renewable electricity, renewable diesel and naphtha produced from landfill biogas. In the final RFS2 rule, EPA established biogas as an advanced biofuel type when derived from landfills, sewage waste treatment plants, and manure digesters. EPA also established cellulosic diesel and cellulosic naphtha as eligible cellulosic biofuels; eligible feedstocks for these biofuels included cellulosic components of separated municipal solid waste but did not include biogas from landfills.
EPA is now proposing to include renewable electricity (when used in transportation) produced from landfill biogas feedstock as well as diesel and naphta produced from landfill biogas via the Fischer-Tropsch process as approved advanced and/or biomass-based fuels.
If the Fischer-Tropsch facilities produce at least 20% of their electricity demand at the facility from certain allowed sources, EPA is proposing that the renewable diesel and naphtha produced would further qualify as cellulosic biofuels.
Renewable CNG/LNG produced from biogas from waste treatment plants and waste digesters is still classified as an advanced biofuel. However, renewable CNG/LNG produced from biogas from landfills would qualify as a cellulosic pathway.
Advanced butanol pathway. EPA is proposing a new pathway that allows butanol made from corn starch using a combination of advanced technologies to meet the 50% GHG emissions reduction needed to qualify as an advanced renewable fuel.
This pathway applies to dry mill fermentation facilities that use natural gas and biogas from an on-site thin stillage anaerobic digester for process energy with combined heat and power (CHP) producing excess electricity of at least 40% of the purchased natural gas energy of the facility (the proposed "advanced butanol pathway").
Cellulosic volumes from cellulosic feedstock. For purposes of the RFS program, cellulosic biofuel is defined as "renewable fuel derived from any cellulose, hemicellulose, or lignin that is derived from renewable biomass and that has lifecycle greenhouse gas emissions, as determined by the Administrator, that are at least 60 percent less than the baseline lifecycle greenhouse gas emissions."
However, EPA points out, no plant matter can ever consist entirely of cellulose, hemicellulose and lignin; even feedstocks such as switchgrass, corn stover, and woody materials contain measurable proportions of other types of organic molecules.
Most "cellulosic" feedstocks contain approximately 80-95% cellulose, hemicellulose, or lignin. Corn kernels contain roughly 75% starch and less than 10% fiber (which includes the cellulosic components, as well as other materials), and soybeans are roughly 60% oil and protein and only about 15% fiber.
EPA is proposing allowing 100% of the volume of renewable fuel produced from specific cellulosic feedstock sources-crop residue, switchgrass, miscanthus, other grasses, wood and branches-to generate cellulosic renewable identification numbers (RINs).
EPA cites three justifications for this approach:
there can be significant variation in the amount of cellulosic content in any feedstock, which varies within a growing season, across samples, and across sites. Attempting to account for this variability would impose a significant administrative burden on producers and EPA;
the amount of the final fuel that is produced from the cellulosic portion of the feedstock is likely to be very high, particularly for fuels produced using a biochemical reaction; and
EPA has already made previous determinations in which a single RIN value was assigned to the fuel produced since it came primarily from one source even though it was also produced from incidental amounts of other sources.
The Biotechnology Industry Organization (BIO) welcomed the opportunity for public comment on the proposed RFS2 amendments and clarifications.
We appreciate EPA moving forward as rapidly as possible with these program amendments. Companies continue to make investments, put steel in the ground, create jobs and develop technologies that reduce dependence on foreign oil and contribute to a cleaner environment. They are preparing to make additional investments with assurance that US policy is committed to energy security and production of biofuels.
Finalization of new pathways will clear the way for companies to bring innovative technologies to the marketplace. Delays can determine whether these companies succeed or fail and whether investors remain confident. We look forward to working with EPA to rapidly finalize these new rules.
-Brent Erickson, executive vice president of BIO's Industrial & Environmental Section,
Resources
John Hofmeister, former President of Shell Oil Company and founder and CEO of Citizens for Affordable Energy (CFAE), is joining the Fuel Freedom Foundation (FFF) Advisory Board. Fuel Freedom is a non-partisan, non-profit organization dedicated to opening the fuel market to allow alternative fuels such as ethanol, methanol, natural gas and electricity fairly to compete with gasoline at the pump. CFAE's mission is to educate citizens and government officials about pragmatic, non-partisan affordable energy solutions.
"The purpose and the focus [of FFF] is exactly in line with what I promoted as president of Shell and subsequently as the founder of CFAE," Hofmeister said to Green Car Congress. "From [these organizations' standpoints], the reason we have to get away from doing nothing is that the public doesn't fully appreciate or understand the situation it faces with respect to fuels' futures."
We exist to better educate the public, to have the conversations that need to be had with government, corporate executives, NGOs, with all sectors of society, on future alternatives.
We have to look at the fuels marketplace from a short-, a medium-, and a long-term perspective. There will not be enough oil to stay on the path we're on globally over the short- and medium-, let alone the long-term. By the time we meet China's needs, India's needs, the developing world's needs, there just is not enough supply to rely 100% on oil as a transportation fuel. It's not going to happen.
-John Hofmeister
In his 2010 book Why We Hate The Oil Companies, Straight talk from an energy insider, Hofmeister suggested that Americans would be facing the beginning of gasoline lines in the 2016-2020 timeframe.
That onset of what he calls the "beginning of the energy abyss" was predicated on normal economic growth, including China's growth, he noted. Since writing the book, economic growth has been "stunted", and China's growth reduced. That, he suggested, might stretch out the beginning timeframe a little further.
It's inevitable. The industry that produces oil can't produce enough, unless the world doesn't grow. It's possible that we will have such expensive oil that we will stymie growth. How many people will suffer? How many poor will become poorer, while rich become richer because we have failed rational tests of creating alternative competitive fuels? We have a choice to condemn ourselves to an energy abyss in the name of the status quo and lack of enlightened leadership, or we can choose to develop alternatives.
Why aren't we more thoughtful about the future? Why don't we begin the journey towards a range of alternatives that delivers increased national security, increased economic security, and multiple choice for consumers?
I think in this regard, we are missing in the whole construct, a meaningful voice of government as an intermediary and an enabler to a better future when it comes to fuel choice. The US has been crippled for 7 years by high-priced fuel; the government has done nothing to speak of to address the issue.
-John Hofmeister
There are many options theoretically available, Hofmeister said, includingnatural gas for multiple transportation fuel applications: LNG, CNG, GTL synthetics, methanol for personal vehicles, even gasoline from natural gas. The organizations are also pushing electric vehicles as an important options, whether battery-based or hydrogen-fuel-cell based.
Analysis of the viability or attractiveness of the different options should rely on a mix of cost, resource availability, and carbon footprint, he suggested.
We need a competitor for oil. We need to open the market to replacement fuels like methanol, ethanol and natural gas. Competition will drive transportation fuel prices down, structurally and sustainably. These fuels are well within our reach, we can implement them into our existing system without the need to wait twenty years for fleet turnover. Fuel Freedom's approach to opening the fuels market by breaking the oil monopoly is America's next giant leap forward.
-John Hofmeister
In terms of taking steps forward, Hofmeister suggests that "first and foremost" there should be a serious, twin-path discussion on the future of natural gas as an alternative fuel, with specific focus about what works best for trucking and trains, and on what works best for personal vehicles. "Let's see what the market does to grow both, the industrial side and the consumer side. We haven't had that conversation yet."
Further, Hofmeister suggested, that even though EVs are off to a slow start, the US should continue to enable the infrastructure to be built to enable both types of electric vehicles, battery and hydrogen.
I think hydrogen fuel cell capability in the next 20-30 years will be more than people give it credit for. It's not a fix for tomorrow, it's too soon. But with the work going on and cost reductions already accrued in fuel cells and vehicles...I would hate to be taught by Japan and Germany how to do it, how to develop the infrastructure for hydrogen fuel cell vehicles. But that's quite possible.
-John Hofmeister
http://www.greencarcongress.com/2013/04/hofmeister-20130430.htm
The staff of the California Air Resources Board (ARB) is holding a public meeting on 23 April in Sacramento to discuss regulatory concepts for establishing fuel requirements for alternative diesel fuels (ADF), including biodiesel, renewable diesel and other emerging diesel fuel substitutes.
ARB's goal is to conduct public meetings leading to the development of a regulatory proposal for consideration by the Board this fall. Staff anticipates the regulatory concepts would involve new alternative diesel fuel provisions, as well as amendments to the existing diesel fuel regulation to accommodate the new ADF requirements and to update outdated provisions. This effort is not directed at other existing transportation fuel programs, such as those for compressed natural gas, liquefied natural gas, liquefied petroleum gas, hydrogen,or electricity.
At the April meeting, ARB staff will discuss its biodiesel literature search, completed and on-going emissions research studies, as well as preliminary regulatory concepts for ADFs. ARB staff posted a white paper describing its initial regulatory concepts for an ADF regulation.
With the advent of the federal Renewable Fuels Standard (RFS) and the California Low Carbon Fuel Standard (LCFS), fuel suppliers will now look to expand their product slates to include more renewable and low carbon replacements for conventional gasoline and diesel. While more innovation may be anticipated in ensuing years of lower carbon and higher renewable fuel standards, there are already notable innovations today. Biodiesel, with its unique chemistry, has the potential to replace conventional petroleum diesel and can be considered an ADF. Likewise, other innovative diesel fuel replacements are entirely hydrocarbon based and may be used as blendstocks to produce commercial CARB petroleum diesel. The latter innovations include renewable diesel, gas to liquid (GTL) diesel and other synthetic diesels.
Some of these diesel fuel substitutes legally exist in commerce today and are controlled through industry consensus standards. Such fuels-related industry consensus standards seek mainly to address both vehicle performance and fuel production quality issues. By contrast, the multimedia impacts from the substitute diesel fuels are generally addressed by state or federal government agencies.
The ARB's current diesel fuel regulations are geared toward providing a pathway for certifying hydrocarbon-based variations on petroleum diesel formulations, but they are ill-suited to providing a market pathway for newer, innovative alternative diesel fuels that are now coming into California in limited quantities. Over the past several years, California Air Resources Board (CARB) staff has endeavored to solicit stakeholder input via meetings and public workshops regarding the need for new regulations to address this gap. Likewise, staff has conducted essential research to understand the air quality impacts of biodiesel and various other diesel fuel substitutes. Much of this information had previously been presented at prior workshops. Based on stakeholder information and conclusions drawn from research, staff has developed regulatory concepts described below for establishing certainty for innovative fuels providers by setting forth a reasonable, multi-option process for getting their fuels approved for sale by ARB.
-"Draft Regulation Concepts"
For purposes of this proposed rulemaking, ARB will consider B5 (5% biodiesel) blends a legal California diesel fuel with no emissions mitigation required. ARB is working with the University of California at Riverside to develop data to determine whether there are significant adverse air-related impacts from the use of B5 blends sufficient to warrant mitigation in the future.
Further, CARB staff suggests that it would be appropriate to allow the use of compliant hydrocarbon-based renewable diesel and synthetic diesels either as neat fuels, or as blendstocks in the production of conventional petroleum CARB diesel fuel. A CARB biodiesel/renewable diesel study showed that renewable and synthetic diesels have comparable or better emission characteristics as compared to conventional petroleum-based CARB diesel.
While over time, ARB staff intends to develop regulations to establish a list of CARB recognized ADFs, biodiesel will be the first fuel to be formally recognized. ARB staff is this proposing a conceptual outline for fuel quality, blending, labeling and record-keeping, as well as enforceability.
Among the changes, staff proposes to amend California code to include the "B20-ready" diesel specifications; to update the diesel certification program (including updated certification engine); and other minor updates and changes. Staff also proposes to amend the certification program to include specific health and toxicity tests that were previously only required when additives were used. Additionally, staff proposes to add a cap limit of 28% by mass, aromatic hydrocarbon content.
University of Dayton Research Institute (UDRI) and Air Force researchers at Wright-Patterson Air Force Base have ramped up production of a new research fuel formula and a fuel derived from seed oils, and now have enough fuel to move from lab testing to testing in engines and auxiliary power systems.
The ACS journal Industrial and Engineering Chemistry Research published an article about the work on the fuel formula-a research jet fuel composition comprising methyl-branched tetradecane isomers-led by Heinz Robota, Ohio Research Scholar in alternative fuels and the Research Institute's alternative fuels synthesis group leader.
As the military and commercial aviation community certify the 50/50 blends of petroleum-derived and synthetic jet fuels for everyday use, decades of experience with the petroleum-derived specifications provide a foundation upon which to base performance expectations. However, for blends with higher synthetic content, potentially approaching 100%, the empirical foundation of current specifications no longer applies. Consequently, identifying the relationships between composition and specific properties relating to the full spectrum of fit for purpose specifications grows in importance. For example, the role played by alkyl aromatic compounds in ensuring seal swell is well-documented.
Conventional petroleum-derived fuel is composed of thousands of individual components that vary considerably in proportion from one lot of fuel to another. Therefore, separating such a mixture into its constituent parts is simply not a viable approach to developing a new specification. Furthermore, petroleum-derived fuels may contain constituent classes, such as aromatics and molecules containing saturated rings, not contained by every synthetic fuel composition. As a path forward, an approach where specific classes of constituents can be prepared and the functional performance of these individual classes better understood appears to be preferable.
-Robota and Alger
The objective of the work described in the paper was to produce a distribution of C14 alkane isomers that also meet the −47 °C freezing point specification of JP-8.
The group's goal is not to invent commercial fuels or ways of making them, according to Robota, but rather to develop fuel samples with certain properties the Air Force can use to broaden its understanding of the composition of alternative fuels and how different compositions influence their practical in-use properties.
My goals are to supply the Air Force with ready-to-test fuel compositions developed in our lab that are unlike commercial fuels; understand the chemistry and chemical engineering issues related to production of these fuels; and be able to provide further assistance as the Air Force tests the samples.
-Heinz Robota
In addition to making research fuels, Robota's group is working with the Air Force to further advance alternative fuels by working with commercial partners to make testable quantities of fuel using the Air Force Research Laboratory's Assured Aerospace Fuels Research Facility Sample Preparation Unit.
Robota's group is currently in the middle of such an undertaking with a commercial partner, converting 1,750 gallons of a renewable crude to roughly 500 gallons of what is expected to be a true renewable fuel. When completed, the fuel will be delivered to a major engine manufacturer for testing on a full-scale engine stand.
After initial rounds of engine testing, further tests will examine burn rate, emissions, how the fuel interacts with engine parts and how the fuel performs at high altitudes.
Resources
Heinz J. Robota and Jhoanna C. Alger (2012) Preparation of a Research Jet Fuel Composition Comprised of Nearly Exclusively Methyl-Branched Tetradecane Isomers Having a Freezing Point below −47 °C. Ind. Eng. Chem. Res., 51 (31), pp 10313-10319 doi: 10.1021/ie301041c