Does anyone know how the unit price of liquefied gas compares to natural gas?

Find the density of the two in the book, and then compare them by converting them into the same unit.

Upstairs, this is not about density, it's about calorific value.

The ratio of calorific value of liquefied gas to natural gas is. A 13-kilogram bottle of liquefied gas is converted into cubic meters, which is equivalent to cubic meters of natural gas. At present, the sales of 13 kilograms of bargaining liquefied gas are 75 yuan, and the use of cubic meters of natural gas is only yuan (cubic meters), and natural gas is cheaper than the two.

Comparison of the average prices of the three fuels in some provinces and regions across the country.

Category: Natural Gas, Coal Gas, Liquefied Petroleum Gas.

Calorific value 35mj m3 15 4mj m3 45mj kg

Province Unit Price Price Price Comparison Unit Price Price Comparison Unit Price Comparison.

Beijing 1 9 0 054 1 2 0 078 4 6 0 102

Tianjin 2 2 0 063 1 1 0 071 4 5 0 100

Hebei Province 2 0 057 1 0 065 4 7 0 104

Inner Mongolia Autonomous Region 1 09 0 031 1 2 0 078 3 8 0 084

Liaoning Province 3 13 0 089 1 44 0 094 4 8 0 107

Jilin Province 2 3 0 066 1 7 0 110 4 7 0 104

Heilongjiang Province 2 07 0 059 1 1 0 071 4 2 0 093

Shanghai 2 3 0 066 1 35 0 088 5 1 0 113

Jiangsu Province 2 05 0 059 1 31 0 085 4 6 0 102

Zhejiang Province 3 3 0 094 1 5 0 097 5 0 111

Anhui Province 2 05 0 059 1 12 0 073 4 5 0 100

Shandong Province 1 6 0 046 1 31 0 085 4 8 0 107

Henan Province 1 75 0 050 1 5 0 097 4 9 0 109

Hubei Province 1 59 0 045 1 12 0 073 5 2 0 116

Sichuan Province 1 17 0 033 1 1 0 071 5 0 111

Guizhou Province 2 03 0 058 0 85 0 055 5 1 0 113

Natural gas and liquefied gas are both fuels, but they are two different things.

One is that they are different.

Whereas, natural gas is a naturally occurring flammable gas. Natural gas in a broad sense includes gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere (including oilfield gas, gas field gas, mud volcanic gas, coalbed methane, and biogenerated gas, etc.). And the natural gas we use on a daily basis refers to natural gas in a narrow sense, usually referring to oil field gas and gas field gas.

Its composition is dominated by hydrocarbons and contains non-hydrocarbon gases.

Liquefied gas is short for liquefied petroleum gas. Liquefied petroleum gas (LPG) is a chemical compound composed of a variety of low-melting vapors in the whole process of petroleum refining. It is a colorless volatile liquid obtained by pressurized cooling and liquefaction of the discharged gas when the oil is processed in the refinery.

The second is that their composition is different.

Natural gas is mainly composed of methane (85%) and small amounts of ethane (9%), propane (3%), nitrogen (2%) and butane (1%). In addition, there are generally hydrogen sulfide, carbon dioxide, nitrogen and water vapor, a small amount of carbon monoxide and trace amounts of rare gases such as helium and argon. Before the natural gas is delivered to the end user, in order to help with leak detection, mercaptans, tetrahydrothiophene, etc. are used to add odors to the natural gas.

When used as an industrial raw material, sulfur-containing impurities must be removed in advance.

The main components of liquefied petroleum gas are one or two of propane, propylene, butane and butene, and it is also doped with a small amount of pentane, pentene and trace sulfide impurities.

Of course, there is also a standard for the composition of liquefied petroleum gas, not all substances composed of this composition can be called liquefied petroleum gas, only the proportion of propane to butane in the composition of the gas can be called liquefied petroleum gas if the ratio of propane to butane exceeds 60%.

The use of liquefied petroleum gas as fuel, due to its high calorific value, no smoke, no carbon slag, easy to operate and use, has been widely used in people's life. In addition, LPG is also used to cut metals, for the baking of agricultural products and the roasting of industrial kilns, etc.

Third, the conveying mode is different.

Natural gas can only be transported by pipelines because its main component is non-liquefiable methane. If you see yellow pipes of varying thickness leading to homes outside residential buildings, it must be natural gas, not liquefied petroleum gas. Liquefied gas is compressible and liquefiable, so it can be compressed and liquefied and transported in cylinders of different sizes.

The so-called "gas tank" is actually filled with liquefied petroleum gas. Coal gas, on the other hand, is another incompressible and non-liquefiable flammable gas.

Fourth, the calorific value of combustion is different.

The calorific value of combustion of liquefied gas is greater than that of natural gas.

The calorific value of natural gas is 8,000 kcal to 8,500 kcal per cubic meter. The calorific value of combustion per kilogram of liquefied gas is 11,000 kcal. The calorific value of combustion per cubic meter of liquefied gas is 25,200 kcal.

Each bottle of liquefied gas weighs kilograms, with a total calorific value of 159,500 kcal, which is equivalent to the calorific value of 20 cubic meters of natural gas.

Different gas sources, because of different composition and calorific value, need to choose different stoves. Don't misuse.

1. Liquefied gas.

The so-called liquefied gas refers to the abbreviation of liquefied petroleum gas, which is a flammable gas produced by the petroleum industry in the process of catalytic cracking of petroleum, and is a by-product of the production of the petroleum industry. I believe many people have seen that oil companies always have a large chimney on fire, which burns liquefied gas produced during oil processing.

Liquefied gas is a hydrocarbon, and the main components are propane, butane and other alkanes. It is mainly suitable for industrial chemical raw materials, such as synthetic rubber, plastics, synthetic fibers, explosives, diesel locomotives and civil use. At the same time, liquefied gas is larger than air, twice that of air.

The limit of liquefied gas is, the higher the upper limit of the limit, the more difficult it is, and the limit value of liquefied gas is not very good in this regard, which is one of the main reasons why this gas source is not used in residents' homes now.

2. Natural gas.

Natural gas is a gas source currently provided to residents, and it is a flammable gas produced by paleontology in the process of underground high temperature and high pressure for a long time, and is generally a companion in the process of oil exploitation.

The main components of natural gas contain nitrogen, methane, ethane, propane, and a small amount of butane, etc., because of these elements, natural gas can be synthesized into fertilizers, and 40% of China's synthetic ammonia is made from natural gas. It can also be used as power generation and frozen food, as well as as internal combustion engine power and for civilian use.

In the case of natural gas, because the specific importance is smaller than air, if a leak occurs, it will float. Because it does not contain carbon monoxide, it is not easy to produce poisoning and ** phenomenon. The most important thing is that the limit of liquefied gas is 5%-15%, the higher the limit limit, the more difficult it is, and the safety has been improved a lot in this regard, so natural gas is much safer and more suitable for family use.

Can liquefied gas stoves and natural gas be used on stoves?

For these two different gas sources, in principle, they cannot be universal, because from the beginning of the design, the stove is also designed with different gas sources.

1.The pressure of the pipes is not the same.

The ** pressure of liquefied gas is 2800pa, the relative pressure is larger, and the speed of gas output is faster when used.

The ** pressure of natural gas is 2000pa, the relative pressure is smaller, and the speed of gas output is slower when used.

The pressure of natural gas is relatively small, the pressure is about 2000pa, and it is mainly transported by pipelines, so its nozzle hole is relatively large, and the gas output speed is slower. When the cooktop is designed, the vents will be designed to.

2.The calorific value is different.

Liquefied gas, the calorific value of combustion per cubic meter is 10,000 kcal.

Natural gas, the calorific value of combustion per cubic meter is 8500 kcal.

The gas-air mixing of natural gas cooker is basically self-priming, while the air-to-air mixing ratio of household liquefied gas is different from that of natural gas.

3.The amount of air that needs to be mixed in varies.

Liquefied gas has a high carbon atom content, so the amount of air that needs to be mixed in during combustion is larger.

The main component of natural gas is methane, liquefied gas, I remember propane.

Natural gas is more cost-effective than liquefied gas.

Liquefied gas is still inseparable from oil at present, and it is more expensive. Since the completion of the West-to-East Gas Transmission Project, natural gas has been able to be exploited on a large scale, so natural gas is much cheaper than liquefied gas.

The gas tank is 120 yuan, and the natural gas yuan (one cubic meter). A gas tank has about 15 kg of LPG, ** is 120 yuan, the calorific value of each kilogram of liquefied gas combustion is 45 megajoules, and the heat generated by the combustion of each bottle of liquefied gas is 45 megajoules 15 = 675 megajoules.

per cubic meter of natural gas (the heat generated by combustion is megajoules, with , natural gas is about yuan per cubic meter, with yuan. Natural gas saves yuan compared to liquefied petroleum gas, so natural branches are more cost-effective.

Advantages of natural gas over liquefied gas:

Natural gas is mainly supplied through pipelines and is very stable. Liquefied gas is generally compressed into a liquid and stored in a coal tank, which is more convenient for both transportation and use.

Natural gas and liquefied gas are both gases, and both are flammable and explosive. The limit of natural gas is 5%-15%, while the limit of liquefied gas is about the same. However, considering that the management of natural gas is more standardized and the density is relatively light, the danger of liquefied gas is still greater than that of natural gas.