The price of Pentanes in China has fluctuated greatly in the recent month. After a period of decline, it has been rising in the recent month, with a weekly price increase of about 100 CNY per ton The prices of n-/Isopentane and cyclo-/Isopentane also maintained an upward trend. Junyuan Petroleum Group believes that Pentane prices are now at a relatively low point this year, and manufacturers in urgent need of raw materials can start purchasing. In addition, the sea freight to all parts of the world has been reduced by half, compared with the same period last year.
Pentane products are widely used as blowing agent, solvent and chemical raw materials. At present, Junyuan Petroleum Group is the largest manufacturer of high-purity Isopentane, n-Pentane, Cyclopentane and Pentane Blends/Blowing Agents in the Chinese market, with an annual output of 800,000 tons.
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Pentane Blend (Blowing Agent) Market Price on September 09, 2022
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Product
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City
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Low End Price
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High End Price
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Mainstream Price
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Rise and Fall
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Incoterms
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Remarks
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n-/Isopentane
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Dongying
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7900
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8050
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7950
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0
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EXW
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–
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Cyclo/Isopentane
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Dongying
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7900
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8050
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7950
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0
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EXW
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–
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Remarks:
1. The price in this list is the price including tax in spot exchange, and the unit is CNY / ton;
2. Release time: before 17:00 on working days, for reference only;
3. The rise and fall are compared with the closing price of the previous working day.
n-/Isopentane Refrigeration Foaming
Refrigerant is the working medium of refrigeration, also known as refrigerant, snow. In the refrigeration system, it is vaporized by absorbing energy from the cooling medium in the evaporator, and transfers heat to air and water in the condenser to condense. The increase in the consumption of refrigerants in China also drives the demand for refrigerants. Another point is that the state promotes fluorite as a strategic resource for protective development. In combination with these reasons, the price of refrigerants gradually rises.
At present, there are more than 80 kinds of substances used as refrigerants, including ammonia, freon-12, Freon-22, R-134a, r-404a, R-410A, azeotropic and hydrocarbon refrigerants. Previously, with regard to the impact on the ozone layer, the production of CFC substances such as R11, R12, R113, R114, r115, R502 and R22 was restricted.
In the early days, most of the refrigerants were flammable or toxic, and some accidents often occurred due to excessive pressure. The history of the development of isobutane R600a refrigerant appeared in the middle of the 19th century. It was a vapor compression system using ether as the refrigerant. Carbon dioxide (CO2) and ammonia (NH3) were first used as refrigerants in 1866 and 1873, respectively. Other chemicals include chemical cyanide (petroleum ether and naphtha), sulfur dioxide (r-764) and methyl ether, which have been used as refrigerants for vapor compression. Its application is limited to industrial processes. Most foods are still preserved with ice cubes collected in winter or prepared industrially.
R290 refrigerant, propane refrigerant, is a hydrocarbon refrigerant, which has no damage to the ozone layer and has a very small greenhouse effect. It is actually an environmental protection refrigerant today. From the perspective of environmental protection, almost all countries in the world have no restrictions on the use of R290 refrigerant in the initial installation of new refrigeration equipment and after-sales maintenance. The product is mainly used to replace R22 and R502 refrigerants in low-temperature refrigeration equipment; Because R290 is flammable, it is usually only used in low-temperature refrigeration equipment with less liquid filling, or as a component of low-temperature mixed refrigerant; R290 is compatible with conventional lubricants. The R290 refrigerant steel cylinder for storage and transportation is a pressurized container, which is flammable and explosive. During storage, it should be kept away from kindling and heat sources and avoid direct sunlight exposure. It is usually stored in a cool, dry and ventilated warehouse; During handling, it shall be loaded and unloaded with care to prevent damage to steel cylinders, valves and other accessories. Matching refrigeration oil for the refrigeration engine oil matched with R290 refrigerant, it should follow the recommendations of the manufacturers of refrigeration compressors and refrigeration (air conditioning) equipment, or determine to use the refrigerator lubricating oil with the same design requirements according to the specific conditions of the refrigeration compressors and refrigeration equipment, that is, select the equivalent refrigeration engine oil.
The refrigerant in the refrigerator is added with fluorine in a fixed amount. Use a fixed amount dispenser to add fluorine according to the marked amount. When adding fluorine, feel whether the return pipe is cool by hand. If the return pipe is cold or slightly dewy, the evaporator can be basically covered with frost. When filling, first add less fluorine than the original amount and let it run. When the evaporator is full of frost, finally add it to the return pipe only to condense dew. Generally speaking, the steps of fluorinating the refrigerator are very simple. Vacuumize the refrigerator, pump out the air inside, and then add fluorine. Then seal the refrigerator.
The use of new environmentally friendly refrigerants does not destroy the ozone layer, and the refrigeration efficiency is higher than before. The use of new hydrocarbon refrigerants has also begun internationally, which fully meets the international standards for energy conservation, environmental protection and emission reduction. It is the ideal refrigerant in the world at present.