▎ 摘　　要

NOVELTY - Petroleum coke calcined exhaust gas adsorbent comprises activated carbon, coconut fiber, nano calcium carbonate, graphene and pentaerythritol. USE - Used as petroleum coke calcined exhaust gas adsorbent. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing petroleum coke calcined exhaust gas adsorbent, comprising mixing coconut shell activated carbon, sepiolite activated carbon and apricot core shell activated carbon in a mass ratio of 2:1:3, the activated carbon has a mesoporosity rate of 95.4-95.8%, moisture content of 4-5%, ash content of 2.3-2.7%, bulk density of 385-388 g/l, specific surface area of 1480-1520 m2/g and average pore diameter of 3.5-4.2 nm; and (2) use of petroleum coke calcined exhaust gas adsorbent comprising, placing the adsorbent in a packing layer of the flue gas absorption device, where the height of the filling layer is 50 cm. The flue gas absorption device is located at the discharge end of the petroleum coke calcined waste gas, smoothly entering the flue gas generated by calcining the petroleum coke in flue gas absorbing device equipped with the adsorbent.