
Refinery additives (RA) are the compounds or chemicals that are used to improve and boost the performance in different refinery processes and the end-product fuels. The fuel performance is increased to meet and achieve the fuel specifications regulated by the government bodies and authorities. These refinery additives are generally added during the refinery process and also can be used to enhance and modify the performance of specific end-product specifications, such as motor spirit and diesel. The refinery additive products are used in numerous refinery processes such as reformer system, distillation, filling plant process, process cracker, desulfurization, coker, catalytic reforming, vacuum distillation and many more. These refinery additive products are only used by oil and gas downstream industry. There are numerous types of refining additives, such as antioxidants, stabilizers, antifoulants, defoamers, octane booster, catalyst regenerators, cold flow properties, biocides, cetane number improver, and amine solution, among others. Furthermore, more products comprise lubricity improvers and metal deactivators. Refining additives products are used in several end-use petroleum products, such as diesel, gasoline, asphalt, and aviation fuel, among others. With the help of refinery additives the major downstream players are increasing their refinery throughputs and productivity. These type of refining additives are formulated through different processing techniques and formulated in such way to fulfill the different end-use demand. In the construction industry, people are concerned about the health issues related to bitumen application. Recently, one of the company developed the H2S scavenger to address these types of industry challenges.