How many GJ of heat is equivalent to 1 kilogram of standard coal in terms of energy consumption per ton of ammonia?

Coal with a calorific value of 7,000 calories (29,306 joules) per kilogram is defined as standard coal; the amount required can be calculated by multiplying your tonnage of ammonia consumption by 29,306 joules

Why is the value of standard coal defined as 29,271 joules? Is there an authoritative definition for this? And how many GJ of energy does one cubic meter of natural gas correspond to? How many tons of coal to cut? That is, 1GJ=? Standard coal = ? Standard cubic meters of natural gas

When calculating the energy content of a certain type of energy source, it is the value corresponding to the calorific value of a standard fuel. All forms of energy are directly or indirectly related to heat. The calorific value of different energy sources varies. By converting them into standard fuel based on their calorific value, it is possible to statistically analyze, compare, and evaluate various fuels. There are two standard fuels used internationally: coal and oil. When measured using coal as the standard fuel, it is called coal equivalent; when measured using oil as the standard fuel, it is called oil equivalent. China uses coal equivalent as the energy measurement equivalent. The conversion method is to use the calorific value of 1 kilogram of standard coal, which is 29.3 megajoules, to measure all fuels and energy sources. In other words, the coal equivalent factor is equal to the actual thermal value per kilogram of a certain energy source, divided by the thermal value of 1 kilogram of standard coal, which is 29.3 megajoules. When measuring hydropower as a primary energy source, China calculates it based on the average coal equivalent value of the fuel actually consumed by thermal power plants to produce 1 kilowatt-hour of electricity in that year ； United Nations statistics calculate it based on the thermodynamic equivalent of electricity; 1 kilowatt-hour of hydropower is equivalent to 3.6 megajoules, with a conversion factor to coal equivalent being 0.123. The method for converting nuclear power to coal equivalent is the same as that for hydroelectric power, but this method does not reflect the conversion efficiency of nuclear fuel. Appendix 2: Reference Factors for Converting Various Energies to Standard Coal
Energy Source | Average Lower Heating Value | Factor for Converting to Standard Coal
--- | --- | ---
Raw coal | 5,000 kcal/kg | 0.7143 kg of standard coal/kg
Cleaned coal | 6,300 kcal/kg | 0.9000 kg of standard coal/kg
Other types of cleaned coal | 2,000 kcal/kg | 0.2857 kg of standard coal/kg
Coal slurry | 2,000–3,000 kcal/kg | 0.2857–0.4286 kg of standard coal/kg
Coke | 6,800 kcal/kg | 0.9714 kg of standard coal/kg
Crude oil | 10,000 kcal/kg | 1.4286 kg of standard coal/kg
Fuel oil | 10,000 kcal/kg | 1.4286 kg of standard coal/kg
Gasoline | 10,300 kcal/kg | 1.4714 kg of standard coal/kg
Kerosene | 10,300 kcal/kg | 1.4714 kg of standard coal/kg
Diesel | 10,200 kcal/kg | 1.4571 kg of standard coal/kg
Liquefied petroleum gas | 12,000 kcal/kg | 1.7143 kg of standard coal/kg
Dry gas from refineries | 11,000 kcal/kg | 1.5714 kg of standard coal/kg
Natural gas | 7,700–9,310 kcal/m³ | 1.1–1.3300 kg of standard coal/m³
Blast furnace gas | 4,000–4,300 kcal/m³ | 0.5714–0.6143 kg of standard coal/m³
Other types of gas | | |
Gas generated by chemical processes | 1,250 kcal/m³ | 0.1786 kg of standard coal/m³
Gas produced by catalytic cracking of heavy oil | 4,600 kcal/m³ | 0.6571 kg of standard coal/m³
Gas produced by thermal cracking of heavy oil | 8,500 kcal/m³ | 1.2143 kg of standard coal/m³
Gas produced from coke | 3,900 kcal/m³ | 0.5571 kg of standard coal/m³
Gas produced by pressure carbonylation | 3,600 kcal/m³ | 0.5143 kg of standard coal/m³
Water gas | 2,500 kcal/m³ | 0.3571 kg of standard coal/m³
Coal tar | 8,000 kcal/kg | 1.1429 kg of standard coal/kg
Crude benzene | 10,000 kcal/kg | 1.4286 kg of standard coal/kg
Thermal energy (equivalent) | 0.03412 kg of standard coal per million joules |
Electricity (equivalent) | 860 kcal/kWh | 0.1229 kg of standard coal/kWh
Note: The average lower heating value in this table is expressed in kcal. To convert it to joules, multiply by 4.1816.

3# wlqing Here, the concept of coal equivalent is introduced. Coal equivalent: a conversion factor for various energy amounts, calculated based on the calorific value of standard coal. China also refers to it as standard coal. There is still no internationally recognized uniform standard for coal equivalent. The calorific value of 1 kilogram of coal equivalent is calculated at 29.3 megajoules (7000 kcal) by the United Nations, the former Soviet Union, Japan, and Western Europe**, while the UK determines it based on the weighted average calorific value of coal used as fuel. The calorific value of coal equivalent used in China is 29.3 megajoules per kilogram. When converting raw coal to coal equivalent, using an average calorific value of 20.9 megajoules per kilogram (5000 kcal per kilogram), the coal equivalent factor is 0.714 ； The calorific value of crude oil is calculated at 41.8 megajoules per kilogram (10,000 kcal per kilogram), with a coal equivalent factor of 1.429 ； The calorific value of natural gas is calculated at 39.0 megajoules per cubic meter (9310 kilocalories per cubic meter), with a coal equivalent factor of 1.33 ；

The calorific value of 1 kilogram of standard coal is calculated at 7,000 kcal in China, the former Soviet Union, and Japan, while it is calculated at 6,880 kcal by the United Nations.

1 kilogram of standard coal has a calorific value of 7,000 kcal, with 1 kcal equal to 4.1868 kJ. Therefore, 1 kilogram of standard coal = 29.3076 Gjoules

There’s an issue with the algorithm upstairs; sorry about that, let’s recalculate it.

Not many people got it right, comrades. Everyone here is in the technical field, and this approach won’t work; it will lead to serious problems.