Potential use of waste rubber tires containing polystyrene to produce gasoline-like hydrocarbon by thermal catalytic cracking

2018 International Conference on Biosphere Reserve: The Role of Stakeholders in Mainstreaming Natural Resources Related to Agenda 2030 (Sustainable Development Goals)

Miskah, S.^1 ; Aprianti, T.^1 ; Moeksin, R.^1

Chemical Engineering Department, Sriwijaya University, South Sumatera, Indonesia^1

关键词: Heating value;    High temperature;    Hydrocarbon chains;    Research octane number;    Synthetic polymers;    Thermal-catalytic crackings;    Waste rubber;    Waste tires;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/298/1/012014/pdf
DOI  :  10.1088/1755-1315/298/1/012014

来源: IOP

【 摘 要 】

Rubber tire waste from abundant amount of vehicles are naturally unbiodegradable, without proper treatment they shall accumulate uncontrollably. Polystyrene is a synthetic polymer contained in rubber tires and it is usually unrecycled, therefore it needs a further study to recycle polystyrene effectively. In this research, waste tires are used to produce gasoline-like hydrocarbon using thermal catalytic cracking method uses high temperatures and catalysts of NaOH and zeolite. The ratios of zeolite and NaOH are 0:1; 2:3; 1:1; 3:2; 1:0 with waste tire mass of 400 g, the temperature used varies, which are 300°C, 350°C, and 400°C with pyrolysis durations of 1, 2 and 3 hrs. The thermal catalytic cracking method is a simple solution to break the hydrocarbon chains of polystyrene with considerably shorter length of time aided by the catalysts. The highest volume of gasoline-like hydrocarbon produced is 255 ml with 2 hrs pyrolysis at 400°C. The addition of 25% NaOH and 75% zeolite as the catalyst in the process has given the most favorable result in research octane number (RON) that is 113. The maximum point of heating value is 10223.161 cal/g with 3 hrs pyrolysis duration at 400°C temperature.