APRIL 2021 | Volume 100 Number 4 HydrocarbonProcessing.com 22 SPECIAL FOCUS: CLEAN FUELS 25 27 37 4 Industry Perspectives E. Chan 8 Construction Reducing acid consumption: Maximizing sulfuric acid alkylation unit profitability 12 Industry Metrics 14 Global Project Data 85 Innovations C. Harclerode 89 Advertiser Index Meeting the Tier 3 challenge with ultra-clean alkylate 90 Events Leveraging digital technologies to create the smart renewable diesel facility E. Griffiths and M. Mukherjee 41 A solution to the IMO 2020 MARPOL Annex VI requirement B. Klussmann 47 W. E. Preston, Y. Mccoll and D. Schnittker Modular construction: Always considered, now COVID-necessary M. Villegas 53 Retrofit: A viable alternative to greenfield construction S. C. D. Das PROCESS ENGINEERING 59 Clean fuels: Maximizing production without forsaking profitability 17 Reliability 19 Executive Viewpoint 21 Executive Viewpoint Challenges and pitfalls in brownfield EPC projects P. Dixit 57 COLUMNS 7 Editorial Comment Renewable diesel: The latest buzzword in the downstream sector ENGINEERING AND CONSTRUCTION 51 DEPARTMENTS Converting a petroleum diesel refinery for renewable diesel J. R. Peterson, D. Rana and R. Ewing 31 8 Design considerations when flaring ethylene oxide Taking ownership of problems Technology to drive decarbonization of the oil and gas industry Leading in times of uncertainty WEB EXCLUSIVE People D. A. G. Suares PROCESS OPTIMIZATION 61 Determining the indeterminate D. Chaudhuri and H. van de Ruit PROCESS CONTROL, INSTRUMENTATION AND AUTOMATION 65 Take control of tank pressure D. Macedonia WATER MANAGEMENT 69 TOTAL refineries improve overhead systems corrosion and salting with amine-neutralizing technology L. A. Brun, C. Majorel, J. P. Thoret-Bauchet, A. Pothuaud and C. Cross MAINTENANCE AND RELIABILITY 75 Improve the reliability of a CO2 compressor in a urea synthesis/granulation plant S. Zardynezhad ENVIRONMENT AND SAFETY 81 Alarm management: A pillar of process safety management C. G. Moreno Cover Image: Gazprom Neft is investing in the twostage Omsk oil refinery modernization project. The capital-intensive investment will enable the refinery to increase conversion rate and produce Euro-5 fuels. Photo courtesy of Gazprom Neft.http://www.HydrocarbonProcessing.com