U.S. hydrogen fuel cell technology development - from the fossil energy system to a hydrogen energy system and the diversification of a major conversion
Energy system from fossil to hydrogen as the carrier to the new system and the diversification of energy conversion, even though seemingly incredible, but it is not unprecedented. Countries in the world until the mid-19th century is still based on its energy system as the main means of transport livestock to wood heating and cooking. Today the formation of coal, oil and gas fossil energy systems and transportation fuel and electricity energy is everywhere-dell xps m140 battery,dell xps m1210 battery, dell 6y270 battery, it has been difficult to distinguish between functions of a modern society out.
It may be in the current energy system to the next generation of the edge of the conversion and diversification. Today, including the United States, Japan and other developed countries, as well as China, Brazil and India, strong economic growth in developing countries and the international community, a strong awareness of hydrogen as a future clean and sustainable energy system, a key, it is important component. Future hydrogen energy system is an important characteristic of hydrogen as a fixed power supply, transportation, industrial and residential, commercial use of an energy carrier, hydrogen will become a new energy system for the global economy, social development is not used exhaustible energy resources.
Because hydrogen is an energy carrier, is currently in production, storage, transport and use of such areas as technology development is still in the stage of technical maturity, hydrogen will be mainly from the acquisition of cleaner production technology. Hydrogen from electrolysis of renewable energy access, or from the use of fossil fuel carbon sequestration through the restructuring process of the solution after the acquisition. Hydrogen can be like oil, natural gas and other fossil energy is effectively stored, truck or pipeline transport. When the hydrogen for fuel cells, turbine or generator to produce electricity, it is the water main by-product.
Highly concerned about the United States of hydrogen and fuel cell technology development, its purpose is: In the short term, fossil energy use due to a large number of serious greenhouse gas emissions by the enormous international pressure to bear, so far the U.S. government have not signed the United Nations issued in 1997 “Kyoto Protocol” developed countries should shoulder the provisions of the emission reduction obligations, the Bush administration has recently made many times will not sign the document, the United States and the strengthening of hydrogen fuel cell technology development is to show a positive attitude. Another consideration is the hope that the United States through high-tech development, create more employment opportunities, the country’s industrial structure adjustment and upgrade their products in the international market competitiveness and to increase the current energy security and reliability of electricity supply needs. In the long run, as the world’s mineral resources, especially oil resources will become depleted, there is an urgent need to find a new energy resources or products dell 75uyf battery,dell c1295 battery,dell gd761 battery, to the next generation energy system for the conversion and diversification of the technical preparations to do the full system and a long time accumulation of operating experience.
Generally speaking, the development and utilization of hydrogen and fuel cell technology has many advantages:
• Can make use of the United States a large number of resources and different production methods, means hydrogen fuel;
• Reduce demand for imported oil, especially in the transport of oil resources required;
• Fuel cell can power transmission grid system is not able to meet the supply, the emergency start to fill the shortage of electricity supply, electricity supply has played the role of the peak;
• Can significantly improve air quality in the United States, the atmosphere, so that vehicle exhaust and clean use of fossil fuels in electricity production system is close to zero emissions.
Speaking from principle, hydrogen fuel cell is electrolysis in reverse reaction, the air in the mixture of hydrogen and oxygen to produce catalytic electrochemical reaction current, heat and pure drinking water. In addition to the characteristics of zero emissions, the fuel cell can be higher than the internal combustion engine 2 to 3 times the efficiency of the fuel cell power generation makes it the ability to work to obtain a wide range of applications, including: portable (50 ~ 100 watts) and the fixed station ( 1 ~ 200 MW). Although fuel cells have the service in all aspects of the economic potential of the area, but today they are in terms of price than the internal combustion engine is also relatively expensive, further development of the future will be to improve reliability and reduce costs in order to have economic competitiveness.
1. To hydrogen as a carrier of energy conversion system and the diversification of energy supply is a strategic choice
(1) the United States energy consumption, demand forecast
(2) U.S. oil production, consumption
(3) the United States transport energy strategy
(4) the development of fuel cell technology the United States road map
To this end, the United States the development of fuel cell technology is the basic road map:
• In 2015 to develop fuel cell technology can be carried out after the success of business kd476 decision-making;
• 2020, fuel cell vehicles is still in development stage, but during that time, in essence, the success of the technology not have any impact on the development of a large number of imported oil this trend;
• After 2020 may reduce the oil imports and oil fields in the consumption of transport;
• If the 2040 large-scale use of fuel cell vehicles a breakthrough, then the amount of light oil per day can reduce the 11 million barrels, equivalent to the amount of U.S. oil imports.
① Solid State Energy Conversion Alliance (SECA) program
② Department of Energy and the American Automobile Association (Freedom CAR) plans to
In short, as a result of fuel cell technology and energy efficiency, renewable energy technology development and wide application of strong, such technological breakthroughs and large-scale application in a certain extent, a significant reduction in the production and emission of greenhouse gases. However, despite the fuel cell has the potential of national interests, but it is in the current technological development, the need for capital investment in high-intensity running and long-term access to technical and economic indicators of the accumulation of these factors severely limits its commercial pre-set process. Based on this, the current U.S. government funding, technology development, testing fuel cell technology research with commercial applications, such as the value of the model will continue to play an important role.
2. The source of hydrogen
Long-term strategy for the United States is: the future of fuel cells required for the vast majority of hydrogen from renewable energy resources in the production of access. For example, the use of wind and solar energy dell 75uyf battery,dell c1295 battery,dell gd761 battery converter steelmaking technology of water electrolysis to obtain hydrogen; the use of sunlight or light from biomass catalytic hydrogen production methods; nuclear energy (using thermo-chemical process or electrolysis) is also an optional way. Make use of these methods as a result of increased diversification of energy sources, can significantly improve the U.S. national energy security.
The near term, hydrogen from fossil fuels will be able to (such as petroleum and natural gas) or the use of electrolysis to obtain the solution. Existing projects in the United States arrangements, the main purpose of these processes is to improve the cost and efficiency. Electrolytic method of producing hydrogen in the near future (from the distribution point of view) can be achieved, but its drawback is that use of the existing methods of electricity production, will not be able to produce energy, the environment in Iraq the ultimate efficiency; carbon dioxide absorption and to deal with the problems once they become reality can be used in this way will be from fossil fuels in the production of hydrogen, which will minimize the large number of greenhouse gas emissions.
(1) hydrogen production
(2) hydrogen transfer
(3) the use of hydrogen
International Co-City Japan and the United States reaction to the purchase of
According to overseas media reports, the international market price of cobalt in 2006 turned into the fall, and in February, after the bottom fell, with the strong growth in market demand, supply shortages, from the beginning of March the price rise become more evident. Strategic metals markets in Europe Rotterdam warehouse delivery for 99.8% grade premium grade cobalt, in February of this year fell to 12.75 ~ 13.25 U.S. dollars per pound, the has been increased to more than 15 U.S. dollars, 99.3 percent cobalt grade premium from 11.5 ~ 11.7 U.S. dollars rose to 13.75 ~ 14.5 U.S. dollars. At the same time, the actual current senior U.S. spot price of cobalt increased to 14.25 U.S. dollars per pound, the Russian Co-99.3%-level export price rose to 13.25 U.S. dollars, Zambia delivery price of 13.25 U.S. dollars, the Australian company BHP reported in Asia, Europe and North America, prices rose to 14 U.S. dollars.
According to industry estimates, global cobalt demand in 2006 up to 65,000 tons in 2007 to more than 70,000 tons. The main reason is the world’s airline industry, land-based gas turbine power stations and military arms of the active industrial production led to a marked increase in the consumption-cobalt alloy. It is understood that China will in the next 10 years to buy 180 billion U.S. dollars worth of power generation equipment, no doubt will lead to increased consumption of cobalt. The supply side, despite an ample supply of cobalt raw materials, but a serious shortage of refined cobalt production capacity. In this case, even if the capacity of refining cobalt production at full capacity, it is estimated that the market is still a shortage of refined cobalt supply and demand of 3000 tons. For this reason some people in the industry predicted that the end of the year for sustainable high-quality cobalt price climbed to 30 U.S. dollars per pound. Also has the trading community that the recent price of cobalt can be up to 16 ~ 18 dollars, because a large number of new cobalt smelting dell xps m140 battery,dell xps m1210 battery, dell 6y270 battery capacity by 2007 difficult to put into operation.
In addition, Russia Krasnoyarsk Connolly recently reported 99.3% grade for the class of cobalt base price also increased to 11.85 U.S. dollars per pound, but the company’s actual sales in the open market price of more than 13 U.S. dollars. The company is only a very small amount of a selective buyer of the company, and along with the revitalization of Russia’s aviation industry, tend to increase consumption of cobalt, it is estimated that the future will tend to decline in the export of cobalt.
Due to the rapid rebound in the international prices of cobalt alloys, as well as Japan and the chemical processing industry demand, some consumers worry about the future, Japan will further increase prices even higher, so they choose to move into the spot market to buy cobalt, or even at all costs. Japanese imports in December last year the spot price of cobalt 99.8% level has been increased to 16 ~ 17 U.S. dollars per pound, although in February this year, 1 to drop slightly, but the recent re-pricing of imports rebounded to 14 U.S. dollars per pound CIF. According to Japanese traders said that the Japanese battery industry accounted for about cobalt cobalt consumption to 60% of the total demand, and the industry under the forward contracts are usually imported cobalt was still adequate inventory, so buy on the spot market is currently little interest in cobalt.
At the same time, U.S. consumers to buy cobalt is also very active, especially in the spot dell kd476 market imports from Russia. However, 99.3 percent of Russia’s supply of cobalt-level is very scarce, and even the recent delivery of cobalt has been sold out. Russia supplies the current level of 99.3% cobalt prices and the market price of 99.8% of the difference in class is gradually shrinking, and even less than 1 U.S. dollars per pound. Some consumers are also the same by the United States the annual import turnover of the contract, so from the spot market is not buying.