A cyclone was designed and constructed for the downstream of the reactor to separate the produced char particles from the gas phase. Separated char particles were stored in a char collector. The upper section of the cyclone was a cylinder with the dimensions of 3.5 and 2.54 cm in diameter and height, respectively. The height of the conical section of the cyclone was 5.08 cm, and the inlet of the cyclone was rectangularin shape, with dimension of 1.27 cm in height and 0.55 cm in width.The reactor and cyclone were sized to provide a residence time of less than 1 s for the gas phase before it entered the first condenser. Hot char as a byproduct of pyrolysis is known as an active catalyst. Theorganic vapors in the gas stream crack to secondary char, water, and non-condensable gases.28Therefore, it is necessary to minimize its contact with the pyrolysis vapor products by removing it rapidly.Although the smaller cyclone size benefits from a lower residence timefor the vapor phase, it leads to a higher pressure drop (ΔP), requiringan optimum design for the cyclone. To avoid early condensation in thecyclone and in the char collector and retain the temperature of thevapor above 400 °C, the entire line from the reactor to the condensers was covered with heating tape and isolated using isolation materials