Production Line Description
Coffee husks are the residual products that are left behind after the cultivation of coffee and the wastes that are left after brewing coffee are known as coffee grounds, In addition, there is also Coffee skin, coffee residues and coffee powder. They are suitable for replacing fossil fuel and coal after being converted into the pellets. These pellets are used for cooking, home heating, boilers and the industrial stoves.
Coffee raw material market
Coffee has a huge demand in the market and hence it is produced widely in different parts of the world like Brazil, Vietnam, Indonesia, and Colombia. The coffee husk that is left behind after the cultivation of coffee can be converted into an extremely valuable fuel, which is known as the coffee pellet. Coffee pellets are becoming important sources of energy which are used for the generation of electricity.
Advantages of coffee pellets
1. higher heat value
there are 52.2kg of carbons in every 100kg of coffee waste ground,which contributes to the high heat value of coffee pellets,reaching more than 4200MJ/kg.While the wood pellets normally has 4200~4300MG/kg.
2. lower cost of raw material
coffee grounds normally comes from individuals,shops and factories,they throw way those coffee ground.so the cost of coffee waste ground is lower than others.
3. cleaner property
unlike other biomass raw material,coffee ground is coming from coffee beans,which must be pre-processed so that both the finished product and byproduct are clean and have no harm to human body.
4. short growing period
when raw material is wood type,the growing period of trees is about 4 year,while coffee bean only takes half of a year.that means you can get coffee waste material more easily.
coffee husk/coffee grounds pellet production line flowchart
FAQ About Coffee Grounds Pelleting
1.Why to make coffee residue biomass pellets?
First, the problem of energy shortage is more and more vigorous, so development and production of pellet biomass fuel have become a way out. Second, throwing away of spent coffee grounds will bring decontamination burden for environment. Third, coffee residues used as fertilizer are harmful for soil due to the caffeine, tannins and polyphenols in them.
2.Can profits be made from coffee grounds pelleting?
On one hand, the cost of coffee residues is lower than other raw materials. On the other hand, reasonable design of biomass wood pellet machine, pellet cooler and packing equipment reduces the amount of labor force and energy consumption. The two factors together enable you to get investment back only in a few months after which profits can be gladly made and enjoyed.
3.Is crushing process needed for coffee grounds pelleting?
In order to prevent clogging during pelletizing process, biomass wood pellet machine requires the size of its feedstock to be less than 5 mm which spent coffee residues can achieve without any doubt. Therefore, crushing process can be saved here.
4.Is drying process needed for coffee grounds pelleting?
Many raw materials should be dried before being sent to biomass wood pellet machine, while this situation doesn’t apply here because the water content of spent coffee grounds is about 12.2% which is in the range of its moisture requirement, 10%-15%.
Coffee husk/coffee grounds is pressed into pellets by a pellet machine
5.Is extra additive needed for coffee grounds pelleting?
We know lignin contained in wood materials (such as sawdust, branch, and bark) can play the role of additive so that no investment needed for this part of necessity. Similarly and luckily, in coffee grounds also exist such substance whose proportion is as high as 33.6% in total.
6.What’s the use of produced coffee residue biomass pellets?
Like other pellet biomass fuel, the application of coffee residue biomass pellets ranges from industrial field to household living. In the former case, they act as the fuel of mass production in paper mill, chemical plant, power station, fertilizer factory, etc. In the latter, it embodies daily heat supply for individual family or service industry including restaurant, hotel and bank.
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