How much coal resources are lost by spontaneous combustion in China every year

China is a major producer and user of coal, consuming more than 100 million tons of coal every year.

Hello dear<>

Sorry for your question. China is a major producer and user of coal, with an annual coal consumption of more than 4 billion tons. China consumed about 4.1 billion tonnes of coal in 2019.

This is a huge number, equivalent to more than 100 million tons of coal consumed every day. Coal plays an important role in China's energy structure and is mainly used in power, industry, transportation and other fields. However, due to the high carbon emissions and environmental pollution of Xiangwu jujube, China** is actively promoting the transformation of its energy structure, reducing its dependence on Tangcha coal and increasing the proportion of clean energy to meet the challenges of climate change and environmental protection.

I hope my answers can help you, and I wish you a happy life<>

The pollutants produced by coal combustion mainly include carbon dioxide, carbon monoxide, sulfur dioxide (sulfur trioxide can be produced in contact with air), nitrogen dioxide (nitrous tetroxide can be formed under certain conditions), nitric oxide, dust, etc.

For every ton of standard coal burned in an industrial boiler, kilograms of carbon dioxide, kilograms of sulfur dioxide, and kilograms of nitrogen oxides are produced.

Coking coal is heated to about 1000 degrees in isolation from air (high-temperature dry distillation), and coke is produced by thermal decomposition and coking to produce coke, coke oven gas and coking chemical products. Metallurgical coke has high carbon content, high porosity and high strength (especially high temperature strength), which is an important fuel and reducing agent for blast furnace ironmaking, as well as a proppant and loosening agent for the entire blast furnace material column.

Is it the volume of SO2 produced?

S + O2 == Ignition == SO2

x(g)x=64000(g)

n（so2）=1000mol

v(so2)=1000×

Carbon dioxide, sulfur dioxide, carbon monoxide, methane.

Coal refers to those refined pieces of finished coal, and coal refers to finished coal that can be used to burn fires. The difference between coal and coal is that coal can be used to burn fire, while all types of coal in coal may not be able to burn, or some types of coal are not as good as coal.

It will be generated, mainly from anthropogenic emissions, such as the combustion of fossil fuels (coal, gasoline, diesel), the combustion of biomass (straw, firewood), and garbage incineration. The gaseous pollutants converted into the air mainly include sulfur dioxide, nitrogen oxides, ammonia, and volatile organic compounds. Others include:

Road dust, construction dust, industrial dust, kitchen fumes. Nature** includes: wind-blown dust, volcanic ash, forest fires, floating sea salt, pollen, fungal spores, bacteria.

Fuel name: calorific value mj kg conversion rate.

According to the above calorific value and conversion rate, one kilogram of diesel fuel is equivalent to the thermal energy of one kilogram of coal. Converted to 1 liter, it is equivalent to the thermal energy of kilograms of coal.

At least in theory.

It takes 350 yuan to produce a ton of steam with methanol, and it is about 180 yuan to produce a ton of gas by burning high calorific value oil. Of course, coal is cheap, but a lot of it is not used. Environmental protection prohibited.

Solution: Let the mass of SO2 be xs + O2 ignition = = SO232 64400g x32 400 = 64 xx = 64 * 400 32x = 800g Answer: The mass of sulfur dioxide produced is 800g

Internal factors: 1 Degree of coal deterioration Overall, the tendency of coal to spontaneous combustion decreases with the increase of the degree of metamorphism.

2 Molecular structure of coal With the increase of coalification degree, the oxygen-containing functional groups in coal decrease, the porosity decreases, and the molecular structure becomes compact.

3 Coal and rock composition The more silk coal, the stronger the tendency to spontaneous combustion: on the contrary, the more dark coal contains, the less likely it is to spontaneous combustion.

4 Moisture in coal Many scholars believe that water can promote the spontaneous combustion of coal.

5 Sulfur content of coal The more sulfur-containing minerals there are in coal of the same grade, the more likely it is to spontaneously combust.

6. Coal seam gas content The gas in coal has a good chemical resistance effect and can inhibit spontaneous combustion to a certain extent.

External factors: 1 Geological factors Coal mine burial depth, thickness and dip angle, geological structure and roof properties, etc.

2. Mining technical factors mainly include development methods, coal mining methods, wind leakage intensity, etc.

China's total energy consumption in 2016 was 100 million tons of standard coal.

The National Bureau of Statistics issued the 2016 Statistical Communiqué on National Economic and Social Development (hereinafter referred to as the "Communiqué"). According to the communiqué, preliminary calculations show that China's total energy consumption in 2016 was 100 million tons of standard coal, an increase over 2015.

According to the communiqué, in 2016, the energy consumption of 10,000 yuan of GDP in the country fell by 5%. The comprehensive energy consumption per ton of blister copper of industrial enterprises has decreased, the comprehensive energy consumption per ton of steel, the comprehensive energy consumption per unit of caustic soda has decreased, the comprehensive energy consumption per ton of cement has decreased, and the standard coal consumption per kilowatt-hour of thermal power generation has decreased.

In terms of energy production, in 2016, China's total primary energy production of 100 million tons of standard coal, a year-on-year increase, raw coal output of 100 million tons, a year-on-year increase of -9%, ** output of 10,000 tons, a year-on-year increase, natural gas production of 100 million cubic meters, a year-on-year increase.

In 2016, the annual power generation capacity was 100 million kilowatt hours, a year-on-year increase, of which, thermal power generation was 100 million kilowatt hours, a year-on-year increase, hydropower power generation was 100 million kilowatt hours, a year-on-year increase, and nuclear power generation was 100 million kilowatt hours, a year-on-year increase.

At the end of 2016, the country's installed power generation capacity was 164575 10,000 kilowatts, an increase from the end of 2015. Among them, the installed capacity of thermal power is 105388 10,000 kilowatts, an increase; the installed capacity of hydropower was 332.11 million kilowatts, an increase; the installed capacity of nuclear power was 33.64 million kilowatts, an increase; the installed capacity of grid-connected wind power was 148.64 million kilowatts, an increase; The installed capacity of grid-connected solar power generation was 77.42 million kilowatts, an increase.

Coal consumption declined, ** consumption increased, natural gas consumption increased by 8%, and electricity consumption increased by 5%. Coal consumption accounted for 62% of total energy consumption, down 2 percentage points from 2015; The consumption of clean energy such as hydropower, wind power, nuclear power, and natural gas accounted for the total energy consumption, an increase of one percentage point.

1. Mainly in technical problems and cost considerations. Technological constraints make it difficult to use solar, wind, nuclear, tidal waves, etc., and the above energy costs are high. 2. China's coal reserves are abundant, oil and gas and other resources are less distributed, and coal resources are cheap, and transportation is relatively convenient and safe 3. This is determined by the current national conditions, heavy industry is the pillar of the national economy, coupled with the underdeveloped technology in the field of energy utilization, coal as a basic energy fuel has played an irreplaceable role in the development of national industry.

The development of the coal industry has led to the development of many downstream industries, such as the power industry, the steel industry, the chemical industry, etc., so the proportion of coal in China's energy consumption is quite high. From the perspective of China's current situation: 1. From the perspective of total energy, China is the world's second largest energy producer and second energy consumer, energy consumption mainly depends on domestic energy, and the energy self-sufficiency rate is 94%.

Coal is one of the main energy sources in China, followed by oil, although China's water resources are abundant, but hydropower also accounts for only 6%, coal, oil is a non-renewable resource, once the energy is exhausted, it is bound to affect the operation of China's national economy.

Degree of coal deterioration: Overall, the tendency of coal to spontaneous combustion decreases with the increase of the degree of metamorphism. Molecular structure of coal:

With the increase of coalification degree, the oxygen-containing functional groups in the coal decrease, the porosity decreases, and the molecular structure becomes compact. Coal and rock composition: the more silk coal, the stronger the tendency to spontaneous combustion, on the contrary, the more dark coal, the less likely it is to spontaneous combustion.

1. The degree of coal deterioration: On the whole, the spontaneous combustion tendency of coal decreases with the increase of the degree of metamorphism.

2 Molecular structure of coal With the increase of coalification degree, the oxygen-containing functional groups in coal decrease, the porosity decreases, and the molecular structure becomes compact.

3 Coal and rock composition The more silk coal, the stronger the tendency to spontaneous combustion: on the contrary, the more dark coal contains, the less likely it is to spontaneous combustion.

4. Moisture in coal: moisture becomes steam when burning, which should absorb heat, thus reducing the calorific value of high-minded coal.

5 Sulfur content of coal The more sulfur-containing minerals there are in coal of the same grade, the more likely it is to spontaneously combust.

6. Coal seam gas content The gas in coal has a good chemical resistance effect and can inhibit spontaneous combustion to a certain extent.

7. Geological factors: coal mine burial depth, thickness and inclination angle, geological structure and roof properties, etc.