www.chemengonline.com March 2019 Cover Story 32 Part 1 Non-Destructive Testing: Managing Corrosion Under Insulation Corrosion under insulation (CUI) creates a pervasive and variable challenge to the integrity of insulated equipment, but nondestructive inspection can help avoid undesirable CUI surprises 40 Part 2 Using Corrosion as a Process Variable Monitoring and analyzing historical data can provide insights not available from manual inspection and measurement techniques In the News 7 Chementator Process intensification for carbon capture could reduce costs; Mechanical CO2 sequestration improves algae production; A single process to handle hydraulic-fracturing produced water and offgases; Gas analysis made easier for high-dust areas; Accelerated electrons unlock sugars from cellulosic biomass; and more 12 Business News Sasol begins operating LLDPE unit at Lake Charles site; Arkema opens new polyester-resin manufacturing facility in India; Chemours triples low-GWP refrigerant production with startup of new plant; Eni and Sabic to collaborate on new natural-gas conversion technology; and more 14 Newsfront Chemical Recycling Makes Waste Plastic a Resource With an eye toward a circular economy, technology developers are advancing a host of new approaches to chemical recycling of post-use commodity plastics 20 Newsfront Flow Monitoring for Today's Chemical Processes New technologies provide diagnostics and calibration verification to improve maintenance and process efficiency Technical and Practical 30 Facts at your Fingertips Hygienic Process Equipment Fabrication This one-page reference provides information on key quality-assurance procedures for the fabrication and assembly of hygienic systems that will help prevent contamination and bacteria growth during operation 31 Technology Profile Production of Calcium Carbide from Limestone This column outlines the production of calcium carbide from limestone and coke 46 Feature Report Part 1 Unified Operational Environment Improves Process Safety A unified gateway station and related components increase availability to improve operations and safety CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM MARCH 2019 1 14 32 Volume 126 | no. 3 40 20http://www.chemengonline.com http://WWW.CHEMENGONLINE.COM