March 2018 www.chemengonline.com 03 Overpressure Protection Solar Chemistry Air Filtration Facts at Your Fingertips: Combustion New PPE Regulations Focus on Control Hardware Isopropanol Production Designing Smarter Rotating Machines page 32 ROTATING EQUIPMENT * OVERPRESSURE PROTECTION VOL. 125 NO. 3 MARCH 2018http://www.chemengonline.com