Shell aims to combine coal gasification with gas-to-diesel technology in an alliance with coal miner Anglo American.
Krupp said that despite diesel's dirty image, diesel technology has grown much cleaner in the past decade.
The challenges to wide adoption of diesel technology in the U.S. remain substantial.
While there is no shortage of state-of-the-art diesel technology in America, it mostly appears in engines for big rigs, buses, tractors and locomotives.
While most other automakers are pursuing hybrids and electric vehicles as the way to a more fuel-efficient future, Mazda is focusing on diesel technology.
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Additionally, the president called for expanding his existing tax credit proposal, which currently applies to hybrid and fuel-cell vehicles, to include those using new clean diesel technology.
We also discussed how Audi views the luxury car market: split in two between buyers who are interested in diesel technology and buyers who are interested in high performance.
He has maintained Peugeot's leadership in diesel technology.
Mazda is so confident in its diesel technology that it will race a version of the diesel-powered Mazda 6 capable of making more than 400 horsepower in the Grand-Am Road Racing series next year, starting in January.
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Diesel engine technology took a huge leap with the use of common-rail direct injection (CDI) in the 1990s.
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That could reduce the cost of clean diesel engine technology in the future.
It's also a leader in technology for diesel engines, which are popular in Europe and growing quickly in markets like China and India.
Eventually we will convert natural gas to diesel fuel, but that technology is probably ten years away.
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The company says it could save an estimated 84 million gallons of diesel fuel annually if the technology becomes widespread.
Are there new diesel models available that do not use a similar technology or would I be better off buying a used CDI diesel?
The challenge now: a broadly weaker economy that is hurting everything from sales of fiber-optic glass to the filter technology Corning manufactures for diesel automobiles, a business hurt by the popularity of diesel engines in Europe.
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Chrysler also has stepped up to the technology with a clean-diesel version of the 2014 Jeep Grand Cherokee, its most popular SUV.
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Now the company is further into the red on diesel than it has been for any other technology in its history.
Ed Murphy of the American Petroleum Institute said he doubts whether the existing technology can even remove sulfur from diesel to the extent that the EPA wants.
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The combined effect of charging and improved vehicle technology, notably cleaner-burning diesel engines that are being used in more buses and taxis, has led to an overall reduction of 13% in nitrogen oxides and 12% in PM10 via vehicle tailpipe emissions in the charging zone.
Companies spend billions of dollars each year on decades-old generator technology and tens of billions on the diesel fuel to burn in these inefficient and high-pollutant generators.
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And we are currently developing a wide range of advanced technology vehicles, including more hybrids, more diesel engines, hydrogen internal combustion engines and even fuel cells later on down the road.
When it appears, the diesel Cruze will go a long way toward further popularizing the technology in the U.S. market.
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That is because the Environmental Protection Agency recently approved retrofit technology for big rigs that lets them burn LNG and diesel.
Jim Fletcher, a mechanical engineering doctoral student in fuel cell technology, said the bus is 10 percent more efficient than comparable diesel buses -- a first step in what researchers expect will one day be a far more efficient form of transportation.
Further, whereas palladium is associated with gasoline-powered cars, manufacturers are working to evolve technology so they can also substitute some of the platinum with palladium in diesel-powered cars, Bhar said.
Ford, meanwhile, has stayed away from diesel and focused on hybrids and EVs as well as more fuel-efficient gasoline engines through its EcoBoost technology.
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