Collection Main Predictive Maintenance
Coke oven main pressure control is a critical control application for the safe operation of coke making. A plant’s actuator not only must position the cross-over valve to achieve a pressure of 12 +/- 1 mmWC, but it also must avoid pressure spikes from volatile gases soon after coal [...]
Hydroelectric Power Reaction Turbine
Hydroelectric Power Plants: What is a Reaction Turbine? Hydroelectric power is a reliable renewable energy source accounting for roughly 17% of the world's energy. With countries around the world actively expanding capacity or looking to do so in the near future, hydropower will continue to play a key role [...]
Steam Turbine Retrofit
Steam Turbines in Hydroprocessing Units Hydroprocessing in the Oil & Gas industry refers to two separate, yet similar processing: hydrocracking and hydrotreating. The hydrocracking process converts a variety of petroleum fractions, including oil recovered from solvent extraction of petroleum residues into more valuable, lower-boiling fuel products. Hydrotreating refers to [...]
SABIC Turnaround Project
This article was published in OGN's magazine and on OGN's website. Click here to view the full-page spread! REXA Actuators Chosen for Turnaround Project Sabic Agri-Nutrients, a SABIC affiliate approached REXA last year in April exploring actuator solutions to upgrade two motor operated valves (MOV) to emergency shutdown [...]
Sootblower Steam Pressure Reduction
A Supercritical Sootblower Success! A 20-year-old supercritical power plant in South Korea experienced control issues with their sootblower steam pressure reducing valve. The valve was originally equipped with a spring and diaphragm pneumatic actuator. It suffered from common issues associated with pneumatics, such as the compressibility of air [...]
The Future of Gold with Mark Ferra
The Future of Gold - with REXA Mining/Metals Manager, Mark Ferra The deadly COVID-19 pandemic has impacted life as we know it in just about every way possible. Besides being the world's most serious health-concern throughout 2020 (since there was no known treatment and no vaccine), COVID-19 also led [...]