Abstract
A porous carbon membrane plate (PCMP) was prepared from some kinds of phenol resins and rice husks by carbonization in a N2 stream and activation in a CO2 stream under high pressure. Effect of the carbonization/activation time and temperature, heating rate, ratio of the phenol resins and particle diameter of the raw material (rice husks) on density and strength of the PCMP was examined.
The PCMPs without crack were prepared when pressurization was ceased at 450°C from both the phenol resins and rice husks. These PCMP were 17 mm in diameter and 3mm in thickness. They had smooth surface and micro pore structure. The pore structure of PCMP was affected by the mixture ratio of the phenol resins. The PCMP with higher density was prepared from the rice husk including more ash (silica).
