http://www.theguardian.com/environment/2014/apr/20/corn-biofuels-gasol
Monday, April 21, 2014
Friday, April 18, 2014
Tuesday, February 4, 2014
Thursday, September 5, 2013
Blue-green algae a five-tool player in converting waste to fuel
In the baseball world, a superstar can do five things exceptionally well: hit, hit for power, run, throw and field. In the parallel universe of the microbiological world, there is a current superstar species of blue-green algae that, through its powers of photosynthesis and carbon dioxide fixation, or uptake, can produce (count 'em) ethanol, hydrogen, butanol, isobutanol and potentially biodiesel. Now that's some five-tool player.
http://phys.org/news/2013-09-blue-green-algae-five-tool-player-fuel.ht
Tuesday, September 3, 2013
Green Car Congress: DEMA consortium targeting direct production ethanol from algae at less than $2/gallon
The EU-funded project DEMA (Direct Ethanol from MicroAlgae) is working to produce bioethanol directly from cyanobacteriaa microalgae found in almost every terrestrial and aquatic habitat, including in oceans, lakes and damp soil, and on rocksfor less than €0.40/liter (US$2.00/gallon).
Friday, August 2, 2013
Wednesday, July 31, 2013
Algae startup Sapphire Energy pays off its loan for algae farm Tech News and Analysis
http://gigaom.com/2013/07/31/algae-startup-sapphire-energy-pays-off-it
Friday, July 26, 2013
Green Car Congress: JBEI researchers engineer bacterium to produce diesel-range biofuel using CO2 as sole carbon source
http://www.greencarcongress.com/2013/07/jbei-20130726.htm
Thursday, July 25, 2013
Green Car Congress: Full genome map of oil palm indicates a way to raise yields and protect rainforest; single gene controls oil palm yield
http://www.greencarcongress.com/2013/07/palm-20130725.htm
Green Car Congress: Alaska Airlines to buy sustainable biofuel from Hawai`i BioEnergy
http://www.greencarcongress.com/2013/07/aa-20130725.htm
Friday, June 21, 2013
Video: 16 yr-old Turns Algae to Biofuel and Wins Intel Science Award
The post Video: 16 yr-old Turns Algae to Biofuel and Wins Intel Science Award appeared first on Gas 2.
http://gas2.org/2013/06/21/16-yr-old-evie-sobczak-turns-algae-into-bio
Wednesday, June 12, 2013
Op-Ed: Big Oil Tells More Lies About Ethanol, Only Idiots Believe Them
Op-ed: Everyone working with the API in their bid to block ethanol fuels should die a scandalous, camel-driven, bestiality-related death somewhat sooner than later.
Source: DesMoines RegisterThe U.S. oil and gas industry on Tuesday bolstered its argument for the Supreme Court to strike down the Environmental Protection Agency's decision to allow a higher blend of ethanol in newer automobiles.In a legal brief filed with the high court, the American Petroleum Institute, which represents 500 oil and natural gas companies, insisted that transportation fuels containing 15 percent ethanol could damage cars and trucks.The U.S. Court of Appeals for the District of Columbia ruled last August that trade groups representing the automobile, food and other industries did not have sufficient grounds to challenge the use of the new blend known as E15. In response, API appealed to the Supreme Court in February. The high court could make a decision about whether to hear the case soon."E15 could leave millions of consumers with broken-down cars and high repair bills," said Bob Greco, API's director of downstream and industry operations. "It could also put motorists in harm's way when vehicles break down in the middle of a busy highway. We are asking the Supreme Court to step in and protect consumers by striking down EPA's dangerous E15 mandate before it's too late."API's brief was filed as a response to assertions by ethanol backers who have asked the Supreme Court to let the previous ruling stand.The EPA, which approved the new blend in January 2011, gave the OK for it to go on sale last June. The blend, which has been approved for use in cars and light trucks built since 2000 but is banned from older vehicles and light equipment, has been slow to get off the ground. Only a few stations in the Midwest, including a half dozen in Iowa, have sold the E15 blend.Ethanol groups said appeal to the Supreme Court was the latest sign of desperation by the oil and gas industry."API is basically presenting evidence to prove they will do whatever they can to keep from having to compete with any other fuels," said Ron Lamberty, senior vice president for the American Coalition for Ethanol. "Big Oil will take any approach available to delay E15 implementation while continuing its public smear campaign against it."
The post Op-Ed: Big Oil Tells More Lies About Ethanol, Only Idiots Believe Them appeared first on Gas 2.
http://gas2.org/2013/06/11/op-ed-big-oil-tells-more-lies-about-ethanol
Thursday, March 28, 2013
For Powering Cars, Solar-Electric Is 'Orders Of Magnitude' More Efficient Than Biofuels
Climate Progress recently reported on a study that found both economic and environmental benefits if homes in the northeastern United States upgraded older heating systems by moving from heating oil to switchgrass. However, one point to emphasize was the findings were specific to those circumstances - the region, the homes, and that particular use.
Switchgrass was not nearly as good an idea for electricity generation or transportation fuel. Further confirming the need for a diversity of renewable solutions to our energy needs, a recent study determined that electricity generated by solar beats out biofuels for powering cars under myriad scenarios.
The report, put together by a team from the University of California, Santa Barbara and the Norwegian University of Science and Technology, and published in Enviornmental Science and Technology, compared five different approaches to see what was the most efficient way to power a compact passenger vehicle for every 100 kilometers driven:
- Battery-electric vehicles (BEVs) run on electricity from solar power.
- Battery-electric vehicles run on electricity from switchgrass.
- Internal combustion vehicles (ICVs) run on switchgrass biofuel.
- Battery-electric vehicles run on electricity from corn.
- Internal combustion vehicles run on corn-based biofuel.
The analysis considered land-use, greenhouse gas emissions, fossil fuel use, and took into account the production and use life cycles of both the fuels themselves and the vehicles they power.
In terms of land-use, solar significantly out-performed all other options. It performed modestly better than switchgrass in terms of greenhouse gas emissions, and significantly better than corn-based biofuel. Solar was actually equal or slightly worse than switchgrass when it came to fossil fuel requirements over the totality of the life cycle, but it still out-performed corn-based internal combustion. (And, of course, gasoline.)
So all things considered, a pretty clear win for solar-powered electric battery vehicles:
A write up over at Green Car Congress has more details on the assumptions and variables in the study's modeling.
"PV is orders of magnitude more efficient than biofuels pathways in terms of land use - 30, 50, even 200 times more efficient - depending on the specific crop and local conditions," Roland Geyer, a UCSB Bren School of Environmental Science & Management Professor, told Science Daily. "You get the same amount of energy using much less land, and PV doesn't require farm land." The central bottleneck, as the report notes, is the low efficiency of photosynthesis:
Biofuels for ICVs and bioelectricity for BEVs use photosynthesis to convert solar radiation into transportation services, that is, they are sun-to-wheels transportation pathways. While photosynthesis has a theoretical maximum energy conversion efficiency of 33 percent, the overall conversion efficiency of sunlight into terrestrial biomass is typically below 1 percent, regardless of crop type and growing conditions.
"Today's thin-film PV is at least 10-percent efficient at converting sunlight to electricity," Geyer explained - hence solar's superior performance. In fact, the WWF's Solar PV Atlas found that as far as land-use goes, solar is so efficient that less than 1 percent of global land areas would be needed to supply all the world's electricity needs in 2050.
Traditional corn-based biofuels are problematic on all sorts of levels: Carbon emissions from agricultural production over their full life cycle largely wipe out any carbon benefits at the point of actual vehicle use. They compete with human food supplies and food cropland, driving up global prices and contributing to global poverty and instability. And new cropland sequesters less carbon from the atmosphere than the grassland or forest it typically displaces.
Switchgrass and other cellulosic biofuels, while they avoid disrupting food supplies, are not immune to these other flaws either. On top of that, their commercial viability at any time in the near future is far from certain.
For the clean car fleet of the future, electrical and hybrid vehicles relying on a grid powered by solar - and presumably wind, hydroelectric, and such - still appears to be the way to go.
http://thinkprogress.org/climate/2013/03/27/1783781/for-powering-cars-
Tuesday, March 19, 2013
KLM To Offer Weekly Cooking Oil-Fueled Flights
The Dutch airline company KLM has started powering planes with a fuel mixture that is 25% used cooking oil, and 75% jet fuel (or at least, at least it was made from cooking oil). These regular flights represent a big step forward in alternative fuel flight.
The cooking oil used is obtained from restaurants in the U.S state of Louisiana. The oil was formerly used to fry catfish, cracklins, and other treats. After being used to prepare your food, it is refined at a plant near Baton Rouge, Louisiana, then carried to New York for use in the passenger jets. I'm sure it would feel good to eat at a restaurant that donates its oil to help reduce emissions.
Some believe that it smells like fast food, but, it is claimed to be totally safe for the jets, and reduce emissions by up to 80%. Using it is just like using jet fuel, and it is unnoticeable to pilots. These advantages are wonderful.
As usual, there is a downside, as most new technologies require work to get off the ground: The cooking oil-based fuel is cost-prohibitive. It may be difficult to expand this to struggling airlines that can hardly afford basic, normal operation. But if the costs come down, this could be a very reasonable response to ever-increasing oil prices.
"A lot still has to happen before biofuel will be available on a large scale and for it to be economically competitive in relation to fossil-fuel kerosene," KLM said in a statement. "We cannot achieve this alone. We absolutely need the commitment and support of all the relevant parties: business, government and society.".
The jets used are of the Boeing 777 type, and they will undergo 25 transatlantic test flights, as other jets have done.
Source: BBC
The post KLM To Offer Weekly Cooking Oil-Fueled Flights appeared first on Gas 2.
http://gas2.org/2013/03/19/klm-to-offer-weekly-cooking-oil-fueled-flig
Wednesday, January 30, 2013
How Electricity, Water And Food Could Be Produced In Desert Areas With Minimal Ecological Footprint
1) Concentrated Solar Power 2) Saltwater greenhouses 3) Outside vegetation and evaporative hedges 4) Photovoltaic Solar Power 5) Salt production 6) Halophytes 7) Algae production
The first pilot plant in a program of installations that can sustainably produce crops, electricity, biofuels, and even plants for re-vegetation efforts in a desert environment is now up and running in the Middle Eastern nation of Qatar.
The Sahara Forest Project, which brings outfits from both Qatar and Norway together, uses desert air, sunlight, and saltwater as inputs for a system that aims to be environmentally sustainable, beneficial for local human development, and financially viable over the long term. As the project's CEO, Joakim Hauge, puts it: "The Sahara Forest Project is all about taking what we have enough of, like saltwater, CO2, sunlight, and deserts, to produce what we need more of: sustainably produced food, water, and energy." The hope is that the pilot project can be scaled up to installations in drier and desert climates around the world.
Essentially, the plant takes multiple sustainable technologies and integrates their inputs and outputs into a single multistage system, thus minimizing both waste and ecological footprint:
- Standard solar power and concentrated solar power: Arrays of mirrors create concentrated solar power by aiming sunlight to superheat seawater into steam. That steam can then drive turbines to create electricity, and the heated seawater is then used throughout the greenhouse system. Additional sustainable electricity is generated from arrays of standard solar photovoltaic panels.
- Saltwater for fresh water and cool air for greenhouses: Hot desert air is pulled through a flow of seawater as it enters the greenhouses. This both cools and humidifies the air, creating optimal growing conditions for the agricultural crops within. At the far end of the greenhouse, the air is heated by flows of sun-heated seawater and then encounters pipes of cooled seawater, which causes the humidity to condense into fresh water that is then used for crop irrigation.
- Outdoor vegetation: Outside the greenhouses, the seawater passes through further evaporators to create humidity for vegetation sheltered outdoors. These include trees for desert reforestation, local vegetation, various forms of crops and livestock feed, and specific forms of plants naturally adapted to salt water which serve as feedstocks for bioenergy production and other uses. At the end, remaining seawater is collected into evaporation pools for the production of salt.
- Algae biofuel production: Lab-grown algae, which have been shown to generate up to 30 times more biofuel per acre than other plants, are grown in saltwater pools to create biofuels without taking up agricultural land or crops that double as food for humans.
The basic advantage of the Sahara Forest Project is that it doesn't use any fundamentally new or experimental technology - it merely recombines established technologies in creative ways.
At the same time, at least one of its goals - growing plants for reforestation - may be overly ambitious. "Trying to grow trees in the Sahara desert is not the most appropriate approach," Patrick Gonzalez, a forest ecologist at the University of California, Berkeley, told National Geographic back in 2010. "I can imagine that this scheme and type of technology in limited cases might work in certain areas like Dubai, where they're used to making palm-shaped islands and 160-story-tall buildings."
But for the more modest goal of returning a desert to its natural former ecosystem, "it would be more effective, but less flashy, to work with local people on community-based natural-resource management."
http://thinkprogress.org/climate/2013/01/30/1515871/sahara-forest-proj
Sunday, January 20, 2013
Anti-ethanol Propaganda isn't 100% Wrong, Just 100% Crazy
The post Anti-ethanol Propaganda isn't 100% Wrong, Just 100% Crazy appeared first on Gas 2.
http://gas2.org/2013/01/20/anti-ethanol-propaganda-isnt-100-still-100-
Monday, January 14, 2013
Oil From Algae: The Goal 10,000 Barrels A Day By 2018
Sapphire Energy has built the world's first large-scale farm to grow algae and produce crude oil. If all goes according to plan, commercial production of perhaps 10,000 barrels a day will begin in 2018.
Algae have major potential, even the U.S. military is looking into algae as fuel source. Algae grow fast, do not need food, and build up oil in their cells after being exposed to sunlight and CO2. Algae is grown is salty ponds, so algae farms can be built on land where not much else will grow - thus the land is readily available and inexpensive. Into each pond go genetically engineered single-celled algae that mature in five days. The mature algae is then taken from the pond and put through a thermo-chemical "wet extraction" process that separates the oil.
Sapphire Energy has spent $60 million on 70 algae ponds that are each the size of a football field and a refinery for oil separation. The site sits on 2,200 acres of land in Columbus New Mexico. Oil refining began in the summer of 2012 and the first barrels of oil have aired hit the market.
Sapphire Energy's chief executive is Cynthia Warner. Ms. Warner's previous job - head of global refining at oil giant BP. To date Sapphire Energy has raised about $300 million to fund their operation.
So what is the problem; why is algae oil not a mainstream product? Simply put, it is expensive to make. Reports say it costs around $5,000 to produce 1 ton of algae. If there is 30% oil embedded in that ton, then that converts into around $50 per gallon of oil. And that is before extraction and conversion. Additionally, the energy needed to produce the oil from the algae costs more than the algae would put out.
Yes production costs are a problem. However, that does not mean that there is not potential in this new form of green oil production. Sapphire Energy plans for commercial production of 10,000 barrels of oil from algae a day beginning in 2018.
Source: money.cnn.com
Andrew Meggison was born in the state of Maine and educated in Massachusetts. Andrew earned a Bachelor's Degree in Government and International Relations from Clark University and a Master's Degree in Political Science from Northeastern University. Being an Eagle Scout, Andrew has a passion for all things environmental. In his free time Andrew enjoys writing, exploring the great outdoors, a good film, and a creative cocktail. You can follow Andrew on Twitter @AndrewMeggison
The post Oil From Algae: The Goal 10,000 Barrels A Day By 2018 appeared first on Gas 2.
http://gas2.org/2013/01/14/oil-from-algae-the-goal-10000-barrels-a-day