Multi-local liquefied gas stations mix a large amount of dimethyl ether for profit, experts say it is easy to cause accidents

Adulterated liquefied petroleum gas: Many gas stations mix a large amount of dimethyl ether for profit, experts say it is easy to cause accidents

Dimethyl ether is a combustible gas whose price is lower than that of liquefied petroleum gas.

In early January, reporters from the Beijing News went to Henan and Anhui to investigate and found that many liquefied gas stations were mixed with dimethyl ether for sale.

According to Yao Chunde, a professor at Tianjin University, as a chemical product, dimethyl ether is corrosive to a certain degree.

The State Administration of Quality Supervision, Inspection and Quarantine's "Notice on Relevant Issues in Gas Cylinder Filling" clearly stipulates that dimethyl ether shall not be mixed with civil liquefied petroleum gas.

In Henan, Anhui and other places, some adulterated gas stations have been operating illegally for many years, and regular dimethyl ether manufacturers have also given the “green light” to these civilian gas stations that do not have the qualifications for hazardous chemicals.

Yao Chunde believes that dimethyl ether, as a chemical product that is allowed to be legally produced, is illegally used by illegal traders in some places.

"Insensitive to burning" liquefied petroleum gas

Mixed dimethyl ether for sale at multiple gas stations

“A tank of gas used to last for two months, but now it’s burned out in just over a month.

　　This grain and oil shop is not a liquefied gas station.
It has neither storage tanks nor filling machines.
A reporter from the Beijing News observed for many days and found that the shop owner had stored more than a dozen large liquefied gas tanks in a private house a few hundred meters away from the shop.
When someone came to buy gas, he drove to the private house to secretly tank the gas.
Every one or two days, a van comes to deliver air.

　　The reporter tracked and found that it was the Yalong Liquefied Gas Storage and Distribution Station in Beiyangzhai Township, Suzhou City.

　　Industry and commerce information shows that the gas station was established in 2004 and has been in operation for 17 years.
The Yalong LPG storage and distribution station is 5 kilometers away from the urban area.
There are at least three large storage tanks and a filling room in the station.
It covers an area of ​​1,000 square meters.
In addition to nearby residents' door-to-door purchase of gas, several trucks frequently send out gas.

　　On January 12, a reporter from the Beijing News bought a can of 5 kilograms of liquefied gas at this gas station at a price of 35 yuan, and brought the can of liquefied gas to a restaurant for trial that night.
Compared with pure liquefied gas, the flame of this can of gas is significantly smaller when it burns, and the color is also yellow.
The chef of the restaurant felt that the can of liquefied gas purchased by the reporter was "not good".

　　After that, a reporter from the Beijing News informed the staff of the Yalong Gas Station of the above situation, but the other party insisted that “all the items sold in the station are pure liquefied petroleum gas” and no dimethyl ether was added.
However, during the conversation, the staff member appeared to be very familiar with dimethyl ether.
"It is corrosive and will damage the sealing ring and cause leakage.
"

　　In order to resolve doubts, the Beijing News reporter sent the liquefied gas purchased from the Yalong Gas Station to a professional organization for testing.
The results showed that the content of this tank of liquefied gas dimethyl ether was as high as 36.
9%.

　　On January 12, a worker at the Yalong LPG station in Suzhou, Anhui, was filling LPG.
The reporter bought a tank of LPG from the station.
The test results showed that the content of dimethyl ether in the LPG tank was as high as 36.
9%.
Photo by the Beijing News Investigation Team

　　In mid-to-late January, reporters from the Beijing News visited Henan, Anhui and other places to investigate and found that it was not uncommon for civilian liquefied gas stations to mix dimethyl ether.

　　Xiayi County, Henan Province, adjacent to Suzhou City, Anhui Province, has a population of 1.
2 million.
Nearly 30 civilian liquefied gas stations have been opened in the county.
Larger ones can sell 10 tons of liquefied gas per day, and smaller ones can sell one or two tons.
An operator of a local liquefied gas station estimates that the daily consumption of liquefied gas in Xiayi County exceeds 100 tons, most of which are used for residents' lives.

　　Liu Xutian, who operates three gas stations in Xiayi, claimed to have been in the liquefied gas industry for six or seven years.
When he first started operating gas stations, he did not understand the "hidden rules".
Later, under the guidance of his peers, he began to liquefy.
Add dimethyl ether to the air.
At present, he is in charge of a transportation team consisting of 8 tank trucks, and distributes gas to more than a dozen gas stations in Xiayi County.

　　In addition to distributing liquefied gas, he also runs another secret business, which is to deliver dimethyl ether to these liquefied gas stations.
"There is a hidden rule for liquefied gas stations.
They are all mixed with dimethyl ether, and very few do not.
" He said bluntly that this has long been an open secret in the local industry.
The gas stations under his own name are all adulterated.
The only difference is that Do more and less.

　　"Can't refuse" huge profits

　　Earn more than 10,000 yuan a day, and the highest adulteration is 70%

　　As early as March 7, 2008, the General Administration of Quality Supervision, Inspection and Quarantine issued the "Notice on Relevant Issues in Gas Cylinder Filling", which clearly stipulated that civil liquefied petroleum gas should not be mixed with dimethyl ether and then filled into liquefied petroleum gas cylinders or Unknown chemical additives were added to welding gas cylinders without authorization.

　　According to Yao Chunde, a professor at Tianjin University, dimethyl ether is also a combustible gas, but the calorific value of combustion is only two-thirds of that of liquefied gas.
Because the two are mutually soluble, it gives unscrupulous traders a chance.
However, dimethyl ether is corrosive to a certain extent, and the risk of gas tank leakage is greatly increased after mixing with liquefied petroleum gas.

　　As an important chemical raw material, dimethyl ether can be used to synthesize many kinds of chemical products, and can also be used as vehicle fuel, "but the current amount of these aspects is far less than the amount mixed into liquefied petroleum gas.
" LPG and II The price of methyl ether fluctuates with the market every day, but the price of dimethyl ether is always lower than that of liquefied petroleum gas.
Therefore, mixing dimethyl ether with liquefied petroleum gas and selling it under the name of pure liquefied petroleum gas will bring huge profits to the gas station.

　　"The more you mix, the more you earn.
" Liu Xutian told the Beijing News reporter.
Taking January 24 as an example, the purchase cost of dimethyl ether was about 3,700 yuan per ton, while the liquefied petroleum gas was about 4900 yuan, 1200 yuan cheaper per ton.

　　In order to make more money, the proportion of dimethyl ether blended into liquefied gas stations is astonishing.

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