Coffee grounds can be used to make biodiesel
Biodiesel can be extracted by soaking coffee grounds in organic solvents through a process called "ester transfer". The researchers made biofuels from coffee powders from 20 different regions, including caffeine and non-caffeine, and found that there was little difference in the physical properties associated with biofuels produced by coffee from different sources. "as far as other biodiesel is concerned, the output and properties of biodiesel vary with different sources, and sometimes biodiesel does not meet the specifications. Research shows that different coffee raw materials can produce biodiesel of all specifications, which is undoubtedly good news for biofuel producers and users. " Explained Dr. Chris, a researcher in the department of chemical engineering at the university.

The world produces about 8 million tons of coffee a year, and the oil content of abandoned coffee is as high as 20% per unit weight. According to the physicists' Organization Network on June 18 (Beijing time), researchers believe that biodiesel produced by coffee will only become a small part of the energy structure, and its most practical use at present is that coffee chains collect coffee grounds and send them to processing centers that produce biodiesel. these small-scale biodiesel can provide fuel for the vehicles that carry goods in the chain stores.
"We estimate that small cafes produce about 10 kilograms of waste coffee every day, which can produce about 2 liters of biofuel," said Hood Jenkins, lead author of the paper and a doctoral student at the university's Center for Sustainable Chemical Technology. There is also a lot of waste in the coffee bean roasting industry, as well as some discarded defective beans. If expanded, coffee biodiesel will have great potential to become a sustainable source of fuel. "
Biomass energy, including biodiesel, is indeed a sunrise industry, but its development is very slow, and the main bottleneck is the shortage of raw materials. First of all, in the case of not having enough to eat or not eating well, converting food into fuel is an ethical dilemma; secondly, the collection mode and region of raw materials, and the economy of transportation and storage also restrict large-scale production. Therefore, biomass energy is now more of a breakthrough in concept and technology. Although the production of diesel from waste coffee grounds has solved the dilemma of not competing with others for food, whether it can really become a sustainable source of second-generation biofuels needs to be considered in terms of scale and economy.
- Prev
Aix Coffee comes to China and takes root in Shenzhen
Aix Coffee has a unique culture and atmosphere, happy life attitude, elegant working environment, romantic music, fresh and delicious food, fragrant coffee. The service tenet of the staff is to make friends with customers.
- Next
2014 Beijing International Coffee Exhibition "fragrance" shines in the East
From June 20 to 22, the three-day "2014 Beijing International Coffee Expo" will be held at the International Trade and Exhibition Center in Guangyao Oriental Plaza.
Related
- The more you look at it, the weirder it becomes?! Lucky linkage cup print three-eyed Tom Cat!
- Self-delivery modification was rejected! Customers come to the door and throw coffee angrily?!
- What degree of grind should I use to make coffee by hand? How fine should the coffee powder be ground with cold ice drops? What is the No. 20 screen? How fine are the grains of fine sugar? What is the appropriate grind for the espresso?
- Why is coffee bean watches always oily? Are the oil out of the coffee beans stale? Are oily coffee beans of higher quality? What is the difference between deep and light coffee?
- How long is the taste period for coffee? How long is the best time to finish your coffee? How long can coffee stay in a thermos cup? What is the best degree of hand-brewed coffee?
- Pour out all the raw materials! Many Lucky products are off the market!
- "Haidilao in the milk tea industry" Kawangka quietly increases its prices again! Netizen: No more drinking!
- Ask for 20,000 yuan! Coffee shop managers trick employees into fake marriages?!
- Milk tea takeout "strong" with 10 packs of tissue?! User: No collection or delivery
- Which is sour, deep-roasted or lightly roasted coffee? Do people who know coffee want light or deep roast? What is the difference in the degree of roasting coffee? What is the difference between lightly roasted coffee and deeply roasted coffee?