Heavy oil cracking

There are many heavy oil cracking technologies both domestically and internationally; consulting the literature will be beneficial. The vast majority of oils are mixtures with complex compositions and variable contents. In commercial terms, heavy oil is a commodity with defined specifications, and its range is relatively broad. From a technical perspective, and due to the influence of other processing steps as well as to avoid confusion, it is generally referred to as residue oil. Of course, residue is also a type of heavy oil or heavy crude, and discussions about it generally focus on its specific properties. The technologies for residue cracking mainly include catalytic cracking and hydrocracking; each of these two categories contains many subtypes, some of which are still in the research and development stage. RFCC, DCC, CPP, fixed-bed hydrogenation, fluidized-bed hydrogenation, slurry-bed hydrogenation, and so on. Delayed coking is a simple pyrolysis process with low environmental protection standards, and it is classified as a process that is subject to restrictions. New pyrolysis technologies need to be developed; patent literature can be referred to.