Ceylon black tea is produced in Sri Lanka. Ceylon highland black tea, Anhui Qimen black tea and Darjeeling black tea are also known as the three major black teas in the world. Ceylon black tea has gained more and more people's understanding and recognition in China with its excellent quality and pure taste. Ceylon black tea is called "a gift to the world"!With the continuous expansion of the field of deep processing of tea, the output of tea beverages, instant tea and tea polyphenols has increased rapidly, resulting in a large amount of tea residues. The preparation of tea residues into biological particulate fuel is a new treatment method of tea residues, which has the characteristics of environmental protection, economy and sustainable development.