Natural gas boilers have no advantage in controlling nitrogen oxides

The natural gas is said to be clean energy, itself is biased. Natural gas is also fossil energy, there are clean burning problems, mainly in the combustion process will produce a lot of nitrogen oxides.

According to the information released by the environmental protection department on the operation of natural gas boilers, the concentration of nitrogen oxides is less than 200 mg / m 3%, and less than 400 mg / m3 is 94%, and most of the natural gas Boiler nitrogen oxide emissions concentration of 300 mg / cubic meter. The semi-coke as the fuel decoupling combustion boiler, but can be nitrogen oxide emissions control to 200 mg / cubic meters, in addition, the gas boiler can be more nitrogen oxide control to 100 mg / cubic meters below.

Haze is the main component of PM2.5, the formation of PM2.5 is the culprit of nitrogen oxides, the current large-scale "coal to gas" in the use of natural gas boilers, the control of nitrogen oxides without any advantage at all. It is puzzling that the efforts to push around the "coal to gas" work, from the public records of the data, it is difficult to find the amount of nitrogen oxide emissions, "coal to gas" before and after what changes in nitrogen oxides. As we all know, China is the oil, natural gas resources in poor countries. According to the National Energy Board is expected in 2015 China's natural gas consumption will reach 231 billion cubic meters, while the domestic natural gas supply is only 131 billion cubic meters, need to import 100 billion cubic meters.

Natural gas resources are controlled abroad, gas turbine blade manufacturing and repair technology is controlled abroad, fuel prices we have no right to speak. "Coal to gas" to spend a lot of money, increase the processing facilities have to spend money, but also long-term subsidies for natural gas fuel, which we should have a clear understanding. From this point of view, governance haze is not just an environmental issue, but a political issue.

 Static weather, 48 hours Beijing will reach serious pollution

Haze haze .jpg

    In Beijing, for example, the vast majority of coal-fired boilers in the main urban area of Beijing have been changed to gas-fired boilers, but PM2.5 haze pollution has not only eliminated, but also further intensified. The reason is that the "coal to gas" a substantial increase in emissions of nitrogen oxides, combined with the exhaust emissions of automobile nitrogen oxides, Beijing PM2.5 haze increasingly serious root causes, and there are data that the Beijing air nitrogen The material is three times the sulfur dioxide.

During the winter heating period of 2013, the gas consumption of natural gas in Beijing was 7.8 billion cubic meters. According to the average nitrogen oxide emission concentration of 300 mg, the amount of nitrogen oxides emitted was 25740 tons, and the emissions were basically the same as that of automobile Million cars, the annual consumption of more than 700 million tons of gasoline and diesel, the total discharge of more than 90 million tons, of which more than 80,000 tons of nitrogen oxides in the heating period is also more than 20,000 tons. According to the planning and development plan of gas development in Beijing during the 12th Five-Year Plan period, the annual consumption of natural gas in Beijing will reach 60 billion cubic meters by 2015, the amount of nitrogen oxides emitted will be 198,000 tons, and the gas consumption in 2017 will reach 93 billion cubic meters , The amount of nitrogen oxides emissions will reach 306,900 tons, close to 15 times in 2013.

When Beijing is in the quiet wind or breeze in winter, the field of pollution on Beijing less affected, less than 48 hours of local air will reach serious pollution, that environmental pollution will soon reach the limit, when the nitrogen oxide emissions increased 15 times, imagine what degree of pollution will reach. If the emission concentration is reduced to 20 mg / m3, it is only to maintain the current atmospheric level, in fact, to make the city's natural gas boilers have reached 20 Mg / m3 emission standards, investment is huge, almost impossible.

Advantages of Biomass Fuel Energy

Haze days without falling back to the embarrassment that Beijing's "coal to gas" is not successful, and did not improve the atmospheric environment, in particular, did not reduce PM2.5 caused by haze pollution. In fact, the Beijing thermal power plant around the "coal to gas", resulting in more nitrogen oxides, PM2.5 more, will lead to the wrong way to go further. Chinese Academy of Engineering Ni Weidou made estimates, thermal power plant "coal to gas", the nitrogen oxide emissions will not only reduce, but will increase, but will deteriorate the haze of the situation. Faced with this situation, can only invest a lot of manpower, material and capital, the natural gas boiler emissions of nitrogen dioxide pollution to do post-processing, or go past coal-fired boiler "first pollution control" road.

In China is prohibited from burning coal, enterprises only choose biomass particles, electricity, natural gas, oil and other energy. Next for everyone to analyze the use of these types of energy costs.

From the cost point of view: coal <biomass <electricity <natural gas <oil.

 1. Coal is the cheapest, but the coal boiler pollution of the environment, China has also banned the use of coal.

2. Biomass fuel costs a little higher than coal, but much cheaper than electricity, natural gas, and oil. And its use of raw materials is very environmentally friendly, is an ideal, affordable energy fuel.

3. Although the cost of electricity is not high and environmental protection, but the power consumption, run into power cuts and other activities, it will lead directly can not be used, the voltage arrangement will lead to unreasonable jump electricity and so on.

4. The current price of natural gas is not high, the use of natural gas is also environmentally friendly. But sooner or later to rise, and has not imagined, in many places has been doubled, such as: Tianjin, Shijiazhuang, Zhengzhou and other natural gas when the initial installation of each side of the more than 2, and now has more than 4, the price also Will continue to rise.

5. Oil its production capacity is very fast and convenient, but its raw material oil prices are too high, resulting in its high cost.

Biomass particles as a new type of particulate fuel with its unique advantages to win a wide range of recognition. Compared with the traditional fuel, not only has the economic advantages and environmental benefits, in full compliance with the requirements of sustainable development. After forming the particles of fuel, than the large, small size, resistant to burning, easy storage and transportation. After the molding volume is the volume of raw materials 1/30 ~ 40, the proportion of raw materials is 10 to 15 times (density: 0.8-1.4) calorific value up to 3400 ~ 6000 kcal, is a high volatile phenol solid fuel.

1, biomass particles fuel heat, heat in the 3900 ~ 4800 kcal / kg or so, after the heat of carbonization up to 7000-8000 kcal / kg.

2, biomass pellets fuel purity is high, does not contain other heat does not produce debris, its carbon content of 75-85%, ash 3-6%, water content of 1-3%, absolutely no coal gangue, stone Do not heat but heat the impurities, will directly reduce costs for the enterprise.

3, biomass pellet fuel does not contain sulfur phosphorus, does not corrode the boiler, can extend the life of the boiler, the enterprise will benefit.

4, because the biomass pellet fuel does not contain sulfur phosphorus, combustion does not produce sulfur dioxide and phosphorus pentoxide, which will not lead to acid rain, do not pollute the atmosphere, do not pollute the environment.

5, biomass pellet fuel clean, easy feeding, reduce the labor intensity of workers, greatly improving the labor environment, enterprises will reduce the cost of labor.

6, biomass pellet fuel burned very little ash ballast, greatly reducing the stacking ballast site, reduce the cost of ballast.

7, biomass pellet fuel after burning ashes is a high grade of high quality organic potash fertilizer, recyclable profitability.

8, Biomass Granule Fuel is a natural gift to our renewable energy, it is in response to the central call to create a conservationable society.

Jinwu granule machine can be agricultural and forestry processing waste such as wood chips, straw, rice husk, bark and other raw materials as raw materials, through the pretreatment and processing, curing it into a high density of granular fuel, is the ideal fuel for kerosene replacement , Both to save energy and reduce emissions, is an efficient, clean renewable energy. Biomass particles can be used instead of coal, only in the coal business, can be used to biomass particles.