In that way
However, according to statistics, compared with coal-fired boilers, the cost of oil-fired boilers will increase by four times, and the cost of gas-fired boilers will increase by six times, not counting the huge infrastructure projects such as laying natural gas pipelines.
Huge investment. This is undoubtedly a big burden for many enterprises and the developing national economy. At the same time, among the coal, oil and natural gas resources, China has the most abundant coal resources and the lowest cost.
The proven coal reserves account for 1 1% of the world's reserves. China's oil and gas resources are very limited.
Since 1993, China has become a net importer of oil from an oil exporter and a net importer of crude oil from 1996. Last year, China imported 36% of the country's crude oil processing. Dependence on oil imports (net
The proportion of imports to consumption increased from 6.6% in 1995 to 20% in 2000. It is estimated that 20 10 will rise to 23%. The dependence on natural gas imports was 6% in 2000 and 6% in 20 10.
20%。 Experts predict that according to the oil production rate in recent years, China's proven recoverable crude oil can only be mined for 17 years. Therefore, giving priority to the utilization of coal resources is in line with China's national conditions. All cities in China prohibit the use of coal-fired cookers.
Forcibly giving up coal with abundant resources and low cost and burning oil and gas with few resources and high cost as fuel will not only cause unreasonable utilization of resources, but also increase the cost of enterprises and the burden of the national economy, which is not conducive to the people.
Economic development.
Principle and practical application of coal combustion purification technology.
According to the survey, the sulfur dioxide emitted by coal combustion accounts for more than 90% of the total sulfur dioxide emission in China. In order to promote the rational use of energy, economic restructuring and industrial upgrading, control a large number of sulfur dioxide emissions, curb
With the increasingly serious trend of acid precipitation pollution and the prevention and control of urban air pollution, local governments have successively formulated a series of local laws and regulations according to China's Air Pollution Prevention Law. In recent years, many scientists and patent inventors in China have paid attention to coal.
After painstaking research, the new technology of carbon combustion purification has also developed some environmental protection and energy-saving briquette boilers with smokeless sulfur fixation and energy-saving standards completely reaching or even lower than the national Air Emission Standard for Boiler Pollutants, and has been applied in practice.
It has produced good economic and social benefits. Therefore, in the prevention and control of urban air pollution, we should not simply ban coal burning, but pay more attention to scientific and technological progress and use coal-fired purification technology to solve the problem of sulfur dioxide.
Sulfur and smoke emission pollution problem