Coffee research scientists use coffee grounds to extract biodiesel
According to foreign media reports, coffee can not only satisfy your hunger as afternoon tea, but also turn it into biofuel and drive your car. This statement comes from a study by scientists at the University of Nevada in the United States, who have found that boiled coffee grounds can also be used to produce biodiesel.
The researchers said in a published article that the technology of making diesel from coffee grounds is not difficult and can be extracted with chemical solvents. According to the U.S. Department of Agriculture, more than 16 billion pounds (0.4536 kilograms) of coffee are produced worldwide each year, and coffee residues contain 11%, 20% of bio-oil. As a result, scientists estimate that coffee residue can provide more than 340 million gallons of biodiesel each year.
Manomisra, a professor of engineering at the University of Nevada, Nalasm Harrokunda Modi and Susan Ta Mohapatra conducted the study. Scientists have known about coffee for decades.

There is bio-oil in the coffee, but Misra is the first person to scientifically analyze coffee powder. Misra and her companions believe that the coffee grounds may contain a certain amount of bio-oil. So they went to several Starbucks coffee shops, collected a total of 50 pounds of coffee grounds, dried them in an oven, and then put them in a solvent to extract oil. These solvents can be reused, and the residue can also be used as fertilizer, ethanol raw material and fuel pellets.
The study found that the content of bio-oil in coffee grounds reached about 15%, which was lower than that of soybeans, rapeseed and palm oil. But coffee oil is more stable because it contains more antioxidants. Dr. Misra says the whole process does not take much energy. They estimate that the biodiesel produced in this way can be sold for about $1 a gallon.
However, Dr. Mishra also said that there is a problem with the production of biodiesel from coffee grounds, which is that coffee grounds cannot be collected efficiently, so large-scale production is estimated to be problematic. The researchers plan to set up a small pilot coffee circulation system next year to get coffee grounds from Starbucks and send them to biodiesel processing plants. However, even if the entire world's coffee grounds are used to produce biodiesel, its biodiesel production is less than 1% of the annual diesel consumption in the United States.
"producing diesel from coffee grounds will not replace gasoline to solve the world's energy problem, but hot milk coffee will one day reduce our impact on the environment," Dr. Misra said. Moreover, our goal is to use waste materials and convert them into useful fuel. " Moreover, the biodiesel produced by coffee grounds has another advantage: using coffee grounds to produce fuel, the car exhaust will contain the strong aroma of coffee.
- Prev
Coffee experts offer tips to build Pu 'er coffee brand
On October 25, Yunnan Coffee Trading Center Co., Ltd. held the 2014 Coffee Enterprise Symposium in Pu 'er City National Pu' er Tea Product Quality Supervision and Inspection Center. At the symposium, the person in charge of the company introduced the project background, framework vision and development vision of Yunnan Coffee Trading Center, and invited Ted Linger, founder of American Fine Coffee Association and international coffee industry leader, to lead the way.
- Next
Australian psychologists say drinking coffee can make people compromised
Do you want your lover to listen to you? Then buy him or her coffee! A new Australian study has found that drinking coffee is not only refreshing, but also has the wonderful effect of softening people's ears. Researchers from the School of Psychology at the University of Queensland invited 140 students to ask them about euthanasia and abortion. After that, they were arranged to drink orange juice or coffee and read some lobbying articles that were contrary to their views.
Related
- It's a huge uproar! Well-known brands use "prefabricated concentrate" for cold extraction?!
- The store was exposed to mice running around! Mixue Ice City urgently apologizes!
- 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?!