Decoloration and deodorization technology for waste plastic cracking crude oil

The invention discloses a decoloration and deodorization technology for waste plastic cracking crude oil, and belongs to the technical field of waste plastic recycling. According to the technical scheme, the decoloration and deodorization technology for the waste plastic cracking crude oil is characterized in that concentrated sulfuric acid with the mass concentration being 98% is added in the waste plastic cracking crude oil, stirring is conducted for 2-4 h at the temperature of 40-50 DEG C, standing is carried out, black impurities on a lower layer are drained away, an alkaline solution is added in liquid supernatant to adjust the pH to be 6-7, then cationic flocculant and a decolorising agent are added, the temperature rises to 60-70 DEG C, reaction is conducted for 4-6 h, suction filtration is conducted, an antioxidant is added in a filter solution, and plastic oil meeting the standard can be obtained. According to the decoloration and deodorization technology, high-quality products can be obtained without distillation or extraction by expensive solvents, and the decoloration and deodorization technology has the advantages of being small in equipment input amount, simple in production operation and the like.