Hydrocarbon Processing Preferential baffle reboiler—Part 2 Distillation towers consume ~30% of the energy in a refinery or petrochemical facility. The reboiler is the stomach of the distillation tower that consumes the energy to separate the components. HP Flashback: Excerpts from the 1960s: Petrochemicals rise in prominence and new know-how in refining processes Petrochemicals rise in prominence and new know-how in refining processes Combating naphtha reflux section corrosion mechanism and production losses in a CDU Corrosion is one of the most important challenges that refineries face (FIG. 1).1 HP Flashback: Excerpts from the 1950s: Capacity expands after WW2 and technologies and maintenance mature The following is a mixture of technical articles, columns and headlines published in the 1950s by Petroleum Refiner, the forerunner to Hydrocarbon Processing. Investigation and diagnosis of startup foaming issues at a new tail gas treater In May 2021, Phillips 66 started up a new methyl diethanolamine (MDEA)-based tail gas unit at its Belle Chasse, Louisiana, refinery. History of the HPI: The 1940s: Global conflict, FCC, 100 octane, synthetic rubber—Wartime necessitates advancing technologies Hydrocarbon Processing continues its look at the history of the hydrocarbon processing industry (HPI). HP Flashback: Operations expand and technologies advance during global conflict: Excerpts from the 1940s This articles details several case studies on the use of x-ray technology for inspection purposes. This includes for the inspection of casings, forgings and welded structures, among others. Industry Pioneers: Polymer science, catalytic cracking, petrochemicals and EPC Waldo Semon was an American chemist whose detour with assigned laboratory research at B. F. Goodrich led to the development of vinyl—the second best-selling plastic in the world. Industry Pioneers: Polymer science, catalytic cracking and chemical advances The Austrian-born chemist, Hermann Francis Mark, is well-known for his contributions to the development of polymer science, which he devoted more than 60 yr of his life to. Impact of biofeed retrofits, co-processing on refinery amine units, SWSs and SRUs—Part 2 Producing diesel with a portion of biologically sourced carbon is being done at an increasing number of conventional crude oil refineries.