According to the latest regulations, all gas-fired ignited engines and vehicles produced, imported, sold, and registered must comply with China's five emission standards.
Since natural gas vehicle exhaust does not contain carcinogens such as lead and benzene, and basically does not contain sulphides, the emission of various toxic and harmful substances is reduced by about 85% compared with that of fuel vehicles. Therefore, natural gas vehicles are recognized as “green carâ€. Promoting natural gas vehicles is one of the effective measures to solve urban air pollution.
Promoting natural gas vehicles is one of the effective measures to solve urban air pollution.
The development of natural gas vehicles, replacing them with gas, can significantly reduce the transportation fuel costs. If it is an ordinary petrol car, according to the calculation of 100 liters of 10 liters of oil, at present, the price of Beijing No. 92 gasoline is 7.56 yuan/liter, and the fuel cost per kilometer is 0.75 yuan, nearly double that of natural gas vehicles. Suppose a taxi runs 100,000 kilometers per year. If you change to a natural gas taxi, the annual savings will be about 35,000 yuan.
Although natural gas is a kind of flammable and explosive gas, its safety performance is better than that of gasoline through the protection of a series of safety measures. Natural gas cylinders must be fully sampled for combustion, explosion, fall, etc. in mass production. Test, can be used before leaving the factory. In the past 60 years since the development of natural gas vehicles at home and abroad, there have never been accidents caused by the explosion and burning of natural gas. The facts prove that compressed natural gas vehicles are very safe and reliable.
At present, there are not many natural gas filling stations, and there is still a certain distance between natural gas vehicles and popularization.
According to statistics, in the past year, 446 gas stations have been newly added to China, amounting to 2,784, an increase of 19% over the previous year, of which LNG refueling stations accounted for 22.8%. The number of natural gas vehicles increased by 473,000 and the number of vehicles reached 1.577 million, an increase of 40% over the previous year, of which more than 71,000 were LNG vehicles. The gas used in natural gas vehicles is 12.6 billion cubic meters, and the output value is about 47 billion yuan.
However, for individual car owners, there is a certain degree of difficulty in opening a natural gas car.
According to Zheng Xintian, deputy director of Beijing Lvyuanda Co., Ltd., the current Beijing bus refueling station is not open to private car owners, and private gas vehicles want to refuel, only to the Beijing Gas Group, which is located in the 6th between the Fourth Ring and the Fifth Ring. Gas stations are far from meeting the need for refueling. In the conversion of natural gas vehicles, gas storage tanks accounted for almost half of the trunk space, reducing the storage space of the trunk, which also makes some private owners less satisfied.
It is understood that Beijing Gas Group is stepping up the construction of natural gas filling stations and will be able to meet the demand for 30,000 dual-fuel vehicles.
It is understood that all parts of the country are accelerating the construction of supporting facilities for natural gas vehicles. At present, Beijing Gas Group is stepping up the construction of natural gas filling stations and is cooperating with the Municipal Development and Reform Commission, the municipal party committee, and the municipal regulatory commission to formulate the overall site of the Beijing natural gas vehicle filling station. There are plans to build 100 units, including pure gas stations and co-building stations built with existing gas stations. By that time, it will be able to meet the refueling needs of 30,000 dual-fuel vehicles.
Now under the dual pressure of rising oil prices and environmental protection, new energy vehicles have gradually been recognized and favored. Gas vehicles represented by natural gas are almost synonymous with “cheap, energy-saving, and clean†in the eyes of car owners everywhere. In the implementation of policies such as energy-saving emission reduction at all levels and optimization of traffic structures, natural gas vehicles will be used as an important tool for urban fogging.
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Grinding aids are used in order to reduce the electrostatic forces between cement particles and their agglomeration. Grinding aids most commonly consist of ethanolamines such as triethanolamine (TEA) and triisopropanolamine (TIPA) along with glycols such as diethylene glycol (DEG) and propylene glycol (PG).
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