Loss Prevention
Investigate power limitations in a large steam turbine
An investigation was carried out to rectify power limitations for a steam-turbine driver of a cracked-gas compressor (CGC) in a world-class ethylene plant.DescriptionThe turbine is a nine-stage, impul..
Seal safety may require going beyond typical standards
Top industry professionals believe users must reach beyond typical standards in applying safer mechanical seals when hazardous and toxic chemicals are involved.
Prevent methane hydrate formation in natural gas valves
The discussion here focuses on the thermodynamics involved and on the requirements for a successful natural gas valve application in which the incidences of hydrate formation and icing of the valve are reduced.
Optimize vacuum ejector operations
Vacuum distillation unit (VDU) designs generally involve jet ejectors due to their low capital and operating expenses, high reliability, durability and simplicity. Once the ejector is installed and co..
HP Viewpoint: Consider integral-gear compressors in CO2 services
In 1998, the author began researching suitable technology for compressing 95 MMSCFD of “bone dry” (–100°F dew point) carbon dioxide (CO2) from 16.7 psia to 2,710 psia. The compress..
HP Industry Perspectives: US-based ultra-low-sulfur gasoline rule released
In late March, the US Environmental Protection Agency (EPA) released the long-awaited ruling for ultra-low-sulfur gasoline, also known as the Tier 3 rule. This proposed rule lowers the sulfur content ..
Overflow systems are the last line of defense
The overflow system is the last line of defense against the excessive container filling. An overflow system consists of an overflow nozzle with internal and/or external piping and, in some cases, a si..
Take a quicker approach to staggered blowdown
The design of a reliable blowdown system for a large sour gas-processing facility is one of the most important aspects of plant design. Safe design is vital for facility operation. With the developmen..
Conceptually, accidents are a fallacy
Webster’s unabridged dictionary defines accident as “Literally, a befalling; an event that takes place without one’s foresight or expectation; an undesigned, sudden and unexpected event..
HP Water Management: Update: Online measurement of oxidizing biocides
Nearly all owners of industrial cooling towers feed oxidizing biocides—chlorine (Cl) and bromine (Br)—to kill bacteria in the recirculating cooling water. Minimizing the populations of bacte..
- Petrobras delivers LPG sold at steep premiums despite Lula move to annul auction 4/3
- Plug Power to supply 275-MW GenEco electrolyzer system for Hy2gen’s Courant decarbonized ammonium nitrate project 4/3
- Vietnam refinery boosting jet fuel production 4/3
- China plans to upgrade some petrochemical plants, phase out others by 2029 4/3
- Morocco has diesel stocks for 51 days, energy ministry says 4/3
- Nigeria's Seplat Energy hit by strike amid push for higher output 4/3
