公开(公告)号：US20180312933A1

公开(公告)日：2018-11-01

申请号：US16028319

申请日：2018-07-05

Applicant: QINGDAO TECHNOLOGICAL UNIVERSITY

Inventor： Dalei ZHANG ,  Shenqian DENG ,  Jian LI ,  Ruidong LI ,  Yuanfeng QI

IPC: C21B3/08 ,  C10B53/07 ,  C10B57/00 ,  B09B3/00 ,  B09B5/00

CPC classification number: C21B3/08 ,  B09B3/00 ,  B09B3/0083 ,  B09B3/0091 ,  B09B5/00 ,  C10B49/14 ,  C10B53/07 ,  C10B57/005 ,  C10K3/02 ,  C10K3/04 ,  C21B2200/00 ,  C21B2300/02 ,  C21B2400/02 ,  C21B2400/024 ,  C21B2400/026 ,  C21B2400/06 ,  C21B2400/072 ,  C21C2200/00 ,  Y02P20/129 ,  Y02P20/143

Abstract: The present invention provides a method of simultaneously recycling plastics and detoxifying chromite ore processing residue with residual heat from a steel slag. By heating and gasifying plastics with steel slag, followed by catalytically split-decomposing the plastics with catalysts such as chromite ore processing residue, the plastics are thoroughly converted into a energy gas under water vapor gasification. The surface coking of Chromite Ore Processing Residue is avoided. Meanwhile, the energy gas reduces Cr6+ in Chromite Ore Processing Residue into Cr3+, and the energy gas is cooled, and CO2 and Cl in the energy gas are adsorbed by alkaline substances in Chromite Ore Processing Residue. With this method, chromite ore processing residue is detoxified, and steel slag is cooled, furthermore, energy is saved and a energy gas is obtained.