Effect of the preparation processes of activated carbon from petroleum coke on its adsorption ability and pore structure

China is rich in petroleum coke, but the utilization of the petroleum coke with a high sulfur content is limited even though it is a promising precursor for activated carbon, because direct activation may lead to activated carbon with poor adsorption properties. It was found that its adsorption properties could be improved by precarbonization, mixing with anthracite, and briquetting prior to activation. When Jinshan petroleum coke mixed with a small amount of Taixi anthracite was carbonized at 560?℃ and activated at 810?℃ for 7?h, an activated carbon with iodine adsorption capacity of 855.38?mg/g and methylene blue decolorizing capacity of 104.90?mg/g was obtained.