Archive for the ‘Biofuel’ Category

CO2 + Bacteria + Sunlight = Fuel

December 11th, 2009

http://www.sciencedaily.com/releases/2009/12/091210162222.htm

UCLA has genetically engineered bacteria to eat CO2 and turn it into isobutanol, taking energy from sun light.  Isobutanol cannot readily be used in gas tanks yet, but the process of turning CO2 directly into a hydrocarbon can be much cheaper and easier than technologies like algae or cellulose into biofuel because there are no expensive intermediate steps.

If this technology can be *cheaply* scaled to high volumes and converted to something conventional engines can use, then I would personally suspect to see it displace a lot of other biofuels.  Hopefully we’ll find out soon.

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Fark
  • LinkedIn
  • Reddit
  • Slashdot
  • Twitter
  • StumbleUpon

Ethanol From Waste at Home

August 24th, 2009

http://www.latimes.com/business/la-fi-ethanol22-2009aug22,0,6333918.story
http://www.microfueler.com/t-technology.aspx

A company called EFuel has released two waste to ethanol products meant for home use.  The MicroFuel, meant for use in cars that can run on gas-ethanol mixes, and the GridBuster for electricity generation, both take liquid organic waste and convert it to ethanol.  Unfortunately, the product is limited to liquid waste, like beer, wine, or liquid with waste sugar.  It does work with “cellulosic material” and algae, but may require “additional processing outside of the MicroFueler.”  Translation, you need to process it first.

The products were first launched for industrial customers, like brewers and vineyards with large amounts of liquid waste, high in sugar content.  Homes are not likely to have enough liquid waste to make full use of the products, but it’s a step towards energy independence and clean power generation.

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Fark
  • LinkedIn
  • Reddit
  • Slashdot
  • Twitter
  • StumbleUpon

Going Green can be Better for the Bottom Line – Biofuels and Airlines

August 21st, 2009

Via: NY Times

American Airlines, Continental Airlines, Delta Air Lines, United Airlines, US Airways, Southwest Airlines, Alaska Airlines and UPS Airlines have signed deals to use 1.5 Million gallons per year of biodiesel from plant waste.  The deal was with Rentech Inc, for ground service at LA International Airport (LAX).

Motivations for deals like this not only include environmental benefits, but also fuel price increase hedges.  Record losses and bankruptcies in the airline industry have been in part due to high oil prices, and price fluctuation.  In some cases, airlines have lost money because of fuel price hedging, rather than just high prices. If airlines using biofuels can prevent $390MM losses, like Delta Airlines in Q2 09, then going green can also be better for the bottom line.

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Fark
  • LinkedIn
  • Reddit
  • Slashdot
  • Twitter
  • StumbleUpon

New Algae Strain Doubles CO2 Absorption

August 21st, 2009

http://greeninc.blogs.nytimes.com/2009/08/20/a-new-more-co2-absorbent-algae-strain/

Aurora Biofuels, a California startup, has engineered a strain of algae that could absorb twice as much CO2 as strains found in nature.  The increases come by boosting the algae’s built in mechanisms to still be effective in low light conditions.  Aurora has built a pilot facility near Melbourne, Florida, but soon hopes to expand to larger sizes.

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Fark
  • LinkedIn
  • Reddit
  • Slashdot
  • Twitter
  • StumbleUpon

Re-post: Biofuel Crops can Aid in Radioactive Soil Cleanup

July 21st, 2009

By way of gas2.0

When crops are planted in radioactive soil, near Chernobyl for example, the plants soak up radioactive material in the roots and stems. With traditional farming, the unused parts of the plant are plowed back into the soil, and the radioactive materials persist. When biofuels are planted, the same biological processes apply, but the plants are distilled. Distillation allows non-radioactive material to be separated and safely used, and the remaining concentrated material can be disposed of. This could dramatically increase the cleanup rate for radioactive soils.

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Fark
  • LinkedIn
  • Reddit
  • Slashdot
  • Twitter
  • StumbleUpon

Exxon Mobil Invests $600M in Algae Biofuels

July 14th, 2009

I’m generally not a fan of reposts without additional commentary, as everyone that makes it hear probably already saw it. However, Treehugger reports that ExxonMobil Bets on Algae in First Major Biofuel Investment.

Since a lot of my original posts were dedicated to biofuels, I thought this would be a good follow up read.

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Fark
  • LinkedIn
  • Reddit
  • Slashdot
  • Twitter
  • StumbleUpon

BD Series Finale: Recommendations

July 6th, 2009

If the ideal case were plausible, the most effective way to increase production of biodiesel in the US would be to enact additional legislation mandating the blending of BD into all PD products sold.  Existing legislation targeted at emissions already provides reason for PD distributors to include BD blends in fuels.  Tightening emissions regulations for PD, beyond the ULSD requirements would be one way to enforce change.  Now that the EPA has officially classified CO2 as a pollutant, enacting proposed carbon taxes on end consumption would drastically skew sales in the favor of BD or blends.

At 22.2 pounds of CO2 emitted per gallon of PD, a carbon tax of $100 per ton would cost an extra $1.11 per gallon purchased.  The increase in retail price of PD would make it less cost competitive.  Unfortunately, since BD production is close to only 1% of the total production of PD, drastic increases in production will be necessary for BD to fully displace PD.  At a yield of 70 gallons per acre per year for soy based BD, approximately 919M acres (1.53M square miles) of farm land devoted to just soy for BD would be necessary to just displace US PD usage.  That is 228% of the total arable US farmland, meaning using only soy based BD is not a viable option to fully displace BD sales.  Multiple methods of BD production, will be necessary, as well as using sources that have higher yields per acre.

Because algae based BD production does not have to use arable land and production yields are much higher, it must be explored as option for displacing PD in the US transportation industry. The Aquatic Species Program reached sustained production rates of 5,000 gallons per acre per year, which would require only about 21K square miles of non-arable land.  Theoretical limits calculated by the ASP were up to 15,000 gallons per acre, reducing the necessary land to 7K square miles.  To reach these theoretical limits, investment in actual production technology must be made.  The ASP did much of the research necessary, their conclusions just need to be implemented.  As production yields increase, the retail cost per gallon should decrease, making it more viable in the market without subsidy.

While new production technologies are being investigated, producers will need to explore all potential sources of income to decrease production costs, including selling glycol byproducts, and production in conjunction with coal fired power plants to offset CO2 emissions.  The ASP also concluded that algae has the potential to drastically reduce CO2 emissions from power plants, so if a carbon tax is instituted, revenue can potentially be generated by working in collaboration with major emitters.

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Fark
  • LinkedIn
  • Reddit
  • Slashdot
  • Twitter
  • StumbleUpon

BD Series: Conclusions – Subsidy is the Most Important Factor in Market Viability

July 5th, 2009

The most important factor in determining the market viability of BD is the profitability of production.  The environmental benefits of BD have been known for years, but production of PD increased because of market factors, not direct environmental factors.  Even with the environmental benefits of BD known for years, production did not increase until legislation was enacted which made production profitable, even at prices higher than competing PD.

Of the factors involved in the retail price, the two most important factors have been the cost of producing plant oil as a source material, and the legislation surrounding BD.  The two are tightly coupled because the source material for producing the plant oils is directly affected by legislation that directly subsidizes agriculture.  On the opposite end of the BD product cycle are the tax credits given to biofuel producers, which directly reduce the retail price.  Legislation for mandated inclusion and emissions regulations allow for a higher sales price because of increased demand that cannot be met by pure PD.  Minnesota’s mandated B2 blend meant that PD producers were required to purchase BD for mixing, even if it did cost more.  The EPA federal regulations for ULSD for reducing SOx emissions led to PD producers blending with BD, which also increases the demand and the subsequent production.

Ramping up production requires additional plant oil, in turn requiring the purchase of source plant materials.  In the case of soy, the added demand can drive up market prices, resulting in higher costs.  Because soy is also a food crop, and is in demand for reasons other than BD production, soy prices can also increase independently of what is caused by BD production.  Increased costs without increased production requires retail prices to go up to preserve profitability.

In order for BD production to increase while still remaining profitable, source materials without external market demand can be used for plant oil.  Because there is not currently market demand and the marginal costs after up front capital investment are low, algae has the potential to be a major source of BD in the future.  Even though algae agriculture is cheap, the processing facilities  and production methods used to turn it into pure oil remain expensive.  To keep overall algae based BD production costs down, additional subsidies will be required, whether direct or indirect.

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Fark
  • LinkedIn
  • Reddit
  • Slashdot
  • Twitter
  • StumbleUpon

BD Series: Cost of Oil – Stating the Obvious

July 4th, 2009

To remain competitive in a market where cost is the determining factor, BD must have a final selling price at or below the price of Petroleum based Diesel.  The retail price of PD is mainly determined by cost components similar to BD, mainly the source material (crude oil 64%) and processing (refining 21%).  Additionally, distribution and marketing account for 5% and taxes 10%. [DOE EIA]
May 2008 Retail Price of Diesel

Of the major components in the retail price, everything but the crude oil is relatively fixed. Refining costs do not increase with the cost of oil, and taxes are levied at a fixed amount per gallon.  Distribution costs do go up with the price of PD because trucks and trains fueled by PD are used in transport, but the amount is relatively small compared to the total selling price.  Because the price of crude oil is the largest component of the final retail price of PD, the price of PD tracks the price of oil.

Historical Price of DieselThe figure above shows the correlation of oil prices to the retail price of diesel [DOE EIA].  As the price of oil rises, the price of PD rises.  Because the retail price of BD is not dependent upon the price of oil, as oil increases, the price gap decreases.  In 1995, the ASP concluded that the price of a barrel of oil would need to be approximately $59 for algae based BD production to be cost competitive.  Historical information from the EIA shows that oil surpassed $60 in 2006, and has since been climbing, meaning that cost competitive algae based BD production may now be viable.

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Fark
  • LinkedIn
  • Reddit
  • Slashdot
  • Twitter
  • StumbleUpon

BD Series: Subsidies and Legislation

July 3rd, 2009

Legislation in the United States affects the production and sales of BD because it alters the market for the product in a number of ways, including cost reduction via direct subsidy and indirect subsidy via tax credit, mandated use, and increased cost for competing goods.  The following graph (Source: BD Conference) shows production output of BD in the US per year, in conjunction with the the introduction of legislation affecting the market.

Biodiesel ProductionThe legislation included above affects the supply, demand, and price.  The 1998 alternative fuel use credit reduced the price to consume BD, but supply was relatively fixed until the USDA established the CCC Bioenergy Program in the 2000 and the reauthorization in the 2002 “Farm Bill.”  The Farm Bill made it cheaper for BD producers to purchase feedstock, which led to a cheaper and more competitive end product.

In 2002, Minnesota was the first state to mandate diesel sold in the state be a BD blend, at a minimum of 2% (B2) by 2005.  Mandating B2 sales increased the demand for BD in a fixed supply market, which raises prices.  Increased prices and increased demand provides incentives for producers because of the greater potential for profit.  Production increased from 15M gallons in 2002 to 25M gallons in 2004.  In 2004, the American Jobs Creation Act provided additional tax credits for BD production ($1 per gallon) and recycling fats and oils ($0.50 per gallon).

By drastically reducing the price at the pump, and pending mandated inclusion of BD, the market spiked to 75M gallons in 2005.  Because of a variety of market factors, soy based BD became price competitive with PD and production ramped up to 450M gallons in 200713 and most recently, 700M gallons in 2008. While not priced below PD, EPA requirements for Ultra-Low Sulfur Diesel increase the demand for BD because it is used as a fuel additive to compensate for loss of lubricity.

Included in legislation that provides for biofuel subsidies, are taxes on competing products, making them more expensive and less competitive in the market.  An example applicable to biofuels, although not BD, is that of ethanol in the United States.  Ethanol gasoline blends are subsidized via VEETC by the US government at a rate of $0.51 per gallon.  To directly pay for the subsidies provided at the pump for corn based ethanol, a $0.54 per gallon tariff is levied on sugarcane based ethanol imports from Brazil [H.R. 6137].  Not only does the subsidy directly reduce the price of corn based ethanol at the pump, it increases the price of sugarcane based ethanol, making domestic production of ethanol more cost competitive.

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Fark
  • LinkedIn
  • Reddit
  • Slashdot
  • Twitter
  • StumbleUpon