Pyrolysis of cigarette waste to fuel production

The cigarette waste is harmful to the environment because they contain a large content of chemicals. Therefore, if it is used to produce fuel by pyrolysis, it can help solve environmental problems. The objective of studying the effects of five levels pyrolysis temperature consisting of 400, 450, 500, 550 and 600 °C to fuel yields. Then, the pyrolysis temperature that gives the maximum fuel yield is used as a condition for the study of two types was catalysts kaolin, and dolomite. In the case of non-catalytic pyrolysis use the cigarette waste 200 g in the reactor. The case of using a catalytic pyrolysis must mix the cigarette waste with each catalyst in the ratio 1:1. The experiment was about 30 min of pyrolysis reaction. The results showed that the pyrolysis temperature of the 400 °C, the maximum fuel yields was 33.3 wt% and fuel have a high heating value (HHV) of 12.8 MJ/kg. When the pyrolysis with the dolomite catalyst, the yields of fuel fell the lowest to 28.6 wt%. The yields of fuel were reduced because of the secondary cracking of the vapor upon contact with the catalyst surface and pores. As a result, the gas yields increase of 8 wt%. However, kaolin and dolomite catalysts were improving the fuel properties clearly. The dolomite allows fuel to have a maximum HHV of 18.1 MJ/kg, easy to ignite, low viscosity and high density. If reducing the pyrolysis temperature and improving the production process by using a catalyst to improve the chemical structure in the hot filter, more quality fuel can be obtained. Therefore, should continue to study this research to study the chemical composition to the fuel that used in the future. •The pyrolysis temperature of 400 °C gave the highest yield of fuel by 33.3 wt%.•Catalytic pyrolysis increased yield of the gas by more than 8 wt%.•The dolomite catalyst gives the fuel a maximum HHV of 18.1 MJ/kg.•The dolomite is clearly more effective in improving fuel properties than kaolin.