| Special Focus PROCESS OPTIMIZATION Throughout the history of the hydrocarbon processing industry (HPI), engineers have constantly looked for ways to optimize plant operations and processes. Through innovative thinking and engineering prowess, new processing technologies are increasing profitability for refinery and petrochemical plant operators. The June Special Focus explores innovative methods and programs to ensure that HPI facilities operate at their optimum levels of safety and efficiency. Photo: A view of the combined oil refining unit (Euro +) at the Moscow Refinery. Photo courtesy of Gazprom Neft.