Trying to understand the chemistry that turns plant material into the same energy-rich gasoline and diesel we put in our vehicles, researchers have discovered that water in the conversion process helps form an impurity which, in turn, slows down key chemical reactions. The study, which was reported online at the Journal of the American Chemical Society, can help improve processes that produce biofuels from plants.
In the US Energy Information Administration’s August issue of its Short-Term Energy Outlook, ethanol production has averaged approximately 940,000 barrels per day over the past three months.
Natural gas supplies have increased in many parts of the world during recent years due to new pipelines and hydraulic fracturing. This increase has led to reduced prices for natural gas and the wider geographic availability of vehicle refueling. As a result, interest has been renewed in utilizing natural gas as a transportation fuel to reduce both the use of oil and greenhouse gas emissions
Stocks.org
CEO Elon Musk stated at the annual shareholder meeting last month that he was confident that Tesla would be able to roll out vehicles that could take the user from the highway entrance to the highway exit without touching any controls.
[VIDEO] Utah may boast abundant energy resources such as cool, natural gas and crude oil, but the message Gov. Gary Herbert drilled home…
[VIDEO] The governor made the announcement at his annual Utah Energy Development Summit on Wednesday, before a crowd of about 1,300 people. The technology, a form of “liquid natural gas” could be used to fuel cars and cut pollution levels, Herbert said…. Read the article
in the research and development of a cleaner, less expensive liquid fuel for vehicles.Governor Gary Herbert rolled out the details of the new program at his Annual Governor’s Energy Development Summit at the Salt Palace… Read the article
In 1962, German researcher Hanns-Peter Boehm suggested the versatile carbon atom, which can form long chains, might be configured into a chicken-wire pattern to create a stable molecule one atom thick.
The idea remained a theoretical construct without even a name until 1987, when researchers started calling it “graphene.” Basically, graphene is two-dimensional graphite, the pure carbon material that makes up “lead” pencils. The term was also used to describe the carbon nanotubes that were beginning to attract attention for their ultra-solid properties. For a while there was talk of elevators reaching up into space until it became clear that creating nanotubes without impurities that degrade their properties was currently out of the reach of mass production.
Then in 2004, Andre Geim and Kostya Novoselov, two researchers at The University of Manchester, came up with something a little more prosaic. They applied Scotch tape – yes, ordinary Scotch tape – to pure graphite and found they could peel off the single layer of carbon in the chicken-wire pattern that Boehm had described. They called this substance “graphene” and were awarded the Nobel Prize in 2010.
The discovery of single-layer graphene has set off a stampede into research of its properties. Carbon is, after all, a versatile element, the basic building block of life that can also be packed into a material as hard as a diamond, which is also pure carbon. When stretched out into lattices a million times thinner than a human hair, however, it has the following remarkable properties:
In short, graphene is now being touted as “material of the 21st century,” the substance that could bring us into an entirely new world of consumer products, such as cell phones that could be sewn into our clothes.
All this still remained somewhat theoretical, since no one had been able to produce graphene in dimensions larger than single tiny crystals. When these crystals were joined together, they lost most of their properties. Two weeks ago, however, Samsung announced that it has been able to grow a graphene crystal to the size of a wafer, somewhat on the same dimensions as the silicon wafers that produce computer chips. Thus, the first step toward a new world of electronics may be upon us. Graphene cannot be used as a semiconductor, since it is always “on” in conducing electricity, but combined with other substances it may be able to replace silicon, which is many researches believe is currently reaching its physical limits.
So what does this mean for the world of transportation, where we are always looking for new ways to construct automobiles and find alternative power sources to substitute for our gas tanks? Well, plenty.
Most obvious is the possibility of making cars out of much lighter-weight materials to reduce the power burden on engines. Chinese researchers recently came up with a graphene aerogel that is seven times lighter than air. A layer spread across 28 football fields would weigh only one ounce and a cubic inch of the material would balance on a blade of grass. All this would occur while it still retained its 300-times-stronger-than-steel properties. Graphene itself would not be used to construct cars, but it could be layered with other materials.
But the most promising aspect of graphene may be in the improvement of batteries. Lithium-ion batteries achieve an energy density of 200 Watt-hours-per-kilogram, which is five times the 40-Wh/k density of traditionally lead-acid batteries. That has won it the prime role in consumer electronics. But Li-ion batteries degrade over time, which is not a problem for a cell phone, but becomes prohibitive when the battery must undergo more than 1,000 charge cycles and is half the price of the car.
Lithium-sulfur batteries have long been thought to hold promise but they, too, deteriorate quickly, sometimes after only a few dozen charges. But recently, researchers at Lawrence Berkeley Labs in California modified a lithium sulfur battery by adding sandwiched layers of a graphene. The result is a battery that achieves 400 Wh/k – double the density of plain lithium-ion – and has gone through 1,500 charging cycles without deterioration. This would give an electric car a range of more than 300 miles, which is in the lower range of what can be achieved with the internal combustion engine.
And so the effort to improve electric vehicles is moving forward, sometimes on things coming out of left field. If graphene really proves to be a miracle substance, look for Elon Musk to be discussing its wonders as he prepares to build that “megafactory” that is supposed to produce lithium-ion batteries capable of powering an affordable new version of the Tesla.
The decision isn’t scheduled until June but already opposing sides are converging on Washington, trying to pressure the Environmental Protection Agency over the 2014 Renewable Fuel Standard for ethanol.
Last week almost 100 members of the American Coalition for Ethanol descended on the nation’s capital for its annual “Biofuels Beltway March,” buttonholing 170 lawmakers and staffers from 45 states. The object was to send a message to EPA Administrators Gina McCarthy to up the ante on how many billions of gallons the oil refining industry will be required to purchase this year.
The ethanol program is currently in turmoil. The latest problem is rail bottlenecks that have slowed shipments and created supply shortages over the winter months. Record-breaking cold and four-foot snow pack have been partly responsible but the rail lines are also becoming overcrowded. With all that oil gushing down from the Bakken and Canadian crude now finding its way into tank cars as the Obama Administration postpones its decision over the Keystone Pipeline, ethanol is getting tangled in traffic. .
“Ethanol for April delivery sold for about $3.02 a gallon on the Chico Board of Trade, an 81 percent increase over the low price during the past 12 months of $1.67 a gallon reached in November,” reported the Omaha World-Herald last Friday “This weeks settlement price of $2.98 a gallon was the highest since July 2011.” With only so much storage capacity, some ethanol refineries have been forced to shut down until the next train arrives to carry off the inventory. As ethanol becomes mainstream, it is becoming more and more subject to market events beyond its control.
But the big decision will be EPA’s ruling in June. In accord with the 2008 Renewable Fuel Act, Administrator McCarthy must set a “floor” for amount of ethanol refiners will have to incorporate into their blends during 2014. The program ran into trouble last year when the 13.8 billion gallon requirement pushed ethanol beyond the 10 percent “blend wall” where the auto companies will not honor warrantees in older cars. Refiners were forced to purchase compensating Renewable Identification Numbers (RINs), which exploded in value from pennies to $1.30 per gallon, forcing up the price of gasoline. Contrary to expectations, gasoline consumption has actually declined over the last six years, from 142 billion gallons in 2008 to 134 billion in 2013 as a result of mileage improvements plus the lingering effects of the recession. Last November McCarthy proposed reducing the 2014 from 14.4 billion gallons to 13 billion. The industry has been crying “foul” ever since.
But there are other ways to fight back. Last week in Crookson, gas stations were offering Minnesota drivers 85 cents off a gallon for filling up with E-85, the blend of 85 percent ethanol that many see as the real solution to the blend-wall problem. “We want the public to understand there are different ratios of gasoline and ethanol and how they can save you money,” Greg LeBlac, of the Polk County Corn Growers, told the Fargo Valley News.
At the annual meeting of the American Fuel and Petroleum Manufacturers (APFM) in Orlando last week, Anna Temple, product manager at WoodMac, made the case that the industry should forego efforts to raise the blend wall from 10 to 15 percent and instead shoot for the moon, leapfrogging all the way to E-85, where ethanol essentially replaces gasoline completely. (The 15 percent only ensures starts in cold weather.)
“E-15 is a non-starter in terms of market share,” Temple told her audience, as reported by John Kingston’s in Platts. http://blogs.platts.com/2014/03/25/eight-fillups/ She argued the incremental battle would absorb vast amounts of political capital yet still not be enough to absorb the 15-billion-gallon target for 2021. Instead, Temple pointed to the growing fleet of flex-fuel vehicles that now numbers around 15 million, headed for 25 million in 2021 or 10 percent of the nation’s 250-million-car fleet.
“If U.S. drivers poured about 200,000 barrels-per-day of E-85 into their flex fuel cars in 2021, that would take care of about 17 percent of the scheduled ethanol mandate,” Temple said. “It would only require that flex-fuel owners fill a 15-gallon tank eight times a year.” The remainder would be absorbed in the 10 percent blend and ethanol producers would not have to cut output.
Platts’ Kingston checked the math and found that even this goal would leave ethanol consumption slightly above the blend wall at 10.5 percent. “Still, the very modest number of eight fill-ups per flex fuel vehicles per year makes the whole blend wall issue seems a lot less daunting,” he confessed.
Of the 15 million people who own flex-fuel vehicles, of course, many don’t even realize it. (The yellow gas cap or a rear-end decal are the giveaway.) But the number of gas stations offering E-85 pumps is rising. The Energy Information Administration now estimates the number at 2,500 with most of the growth taking place outside the Midwestern homeland. California and New York each have more than 80 stations apiece.
The problem of rail bottlenecks can probably be solved by increasing the number of E-85 outlets and flex-fuel vehicles to bring supplies closer to the place of consumption. Still, the industry would probably be happy to have a bigger renewable fuel mandate as well.
The Hawks are out again. One of my favorite service organizations, the American Automobile Association (AAA), in conjunction with media outlets, has again attacked the use of ethanol in cars. It’s quite sad.
I will still keep my membership card. The AAA is the Walmart, Costco or Nordstrom of the automobile industry when it comes to service at relatively low costs to its members. If you get a flat tire on a sparsely traveled road when it’s raining or snowing, the AAA, following the Postal Service norm, “come rain or snow,” will get there reasonably quickly to help you. Get stuck in your four story garage with a dead battery! Don’t fret or fear, your neighborhood AAA repair truck will be at your side within a relatively short time. It,generally, will “get you to your work on time.” Do I sound like Julie Andrews or the cast in “My Fair Lady?”
While I don’t lose sleep over the question (I only get two hours of sleep even without thinking about the AAA), I often wonder why the AAA appears to join with those, particularly in the oil industry, who seem to want to confuse flex fuel vehicle owners and owners of older cars able to convert their engines easily and cheaply, about the wisdom of using ethanol.
Conversion of older cars and extended use of already approved flex fuel cars as well as increased use of ethanol by both sets of vehicles will result in many benefits, particularly when compared to gasoline. For example, ethanol according to many, many independent studies by qualified researchers is a safer, cheaper, and more environmentally friendly fuel than gasoline. While what is and what is not a fact often becomes a metaphysical question and 100% certainty becomes a question often for philosophers more than scientists, trust me — ethanol is a good but is not a perfect alternative fuel. It is better than gasoline. Right now a perfect fuel does not exist! Remember that the enemy of the present good is often the distant perfect.
Despite AAA’s press releases, EPA studies involving more rigorous methodology, including strategic sampling of a range of cars, indicate that engine damage is almost a nonoccurrence when using E15. E10 has been around for a long time with no discernable engine impact and E85, after extensive testing, has been approved for flex fuel cars.
Understandably, ethanol, given improvements in new car engines and tighter fuel standards, reflects fewer benefits than shown in relatively recent studies concerning ghg emissions, and pollutants like SOx and NOx. But ethanol still provides significantly more environmental benefits and less costs to the consumer now than gasoline.
The differences between ethanol and gasoline will become even more apparent if you assume that Americans use their God-given noggin and opt to convert their older cars to accept alternative fuels. It’s cheap and safe and can be done with a kit, or with quick software or tuning fix for some cars. Similarly, there are nearly 15,000,000 flex fuel cars in the U.S. Most owners do not know they have such a car. Look at the sticker in the back of the car or fuel cap. You probably are the proud owner of a flex fuel vehicle and, once you recognize this fact, you can use ethanol without risk. Using ethanol, both for flex fuel cars and converted older vehicles will likely lower your gasoline costs and will contribute to a healthier environment. Tell your neighbors! Tell your friends! Tell your significant other! Tell your spouse!
Clearly, you will see the environmental benefits to your community, state and nation, if you abandon the conventional way of measuring emissions and pollutant reductions and use tons. The new graphic will portray a visible and important increase in the actual emissions and pollutants eliminated from the atmosphere. It also will emphasize the importance of extending the number of vehicles that can use ethanol through conversion of older cars to flex fuel vehicles and the production of increased numbers of flex fuel vehicles. If the owners of both sets of cars increasingly fuel their vehicles with mostly ethanol (an objective of a number of demonstrations and pilot programs in several states), the President’s desire to wean the nation off of gasoline will come closer to fruition. The scale up will provide a transition approach to open fuel markets until competitive renewable fuels become ready for prime market time.
