Process Optimization
Accurate prediction of phase equilibrium properties—Part 2
Phase equilibrium properties, such as bubble point, hydrocarbon dewpoint, water dewpoint, phase envelope, two-phase compositions, compressibility factor, hydrate equilibrium properties, etc., for hydrocarbon mixtures have been calculated accurately using the Peng-Robinson cubic equation of state by implementing constant and temperature-dependent binary interaction parameters in the Van der Waals mixing rule.
FCC catalyst deactivation studies to mimic refinery conditions for high-propylene applications
The fluid catalytic cracking unit (FCCU) is a conversion unit located at the heart of many refineries. Its main purpose is to crack crude oil-derived feedstocks into valuable liquid products, primarily LPGs (propylene and butylenes), and gasoline and light-cycle oil (LCO) precursors. The process uses a fluidizable catalyst, comprising an alumina-silica framework and tailored for each refinery to meet its specific needs. Often, the changing of a catalyst includes catalyst testing evaluations, employed by about 50% of the FCCUs in the world. The testing process is cumbersome, in which multiple methods are available to refineries.
Unlocking FCC potential with an innovative catalyst solution
In 2010, a JV embarked on the deployment of a MHY zeolite technologyb developed at the Massachusetts Institute of Technology. This novel zeolite technology improves traditional zeolite catalysts through the introduction of highly interconnected channels of medium pore size, which enhance diffusion of feed molecules inside zeolite crystals, leading to higher-value product yields, improved process efficiency and increased refinery profitability.
Hydrocarbon Processing Awards Winners
<i>Hydrocarbon Processing,</i> the downstream processing sector’s leading technical publication, has announced the winners for its third annual awards. The <i>HP</i> Awards celebrate innovative technologies and people that have been instrumental in improving facility operations over the past year.
The future of wireless control
In 1864, James C. Maxwell predicted the existence of radiowaves by means of a mathematical model. The so-called Maxwell equations are the most famous and successful formulas. In 1884, John H. Poynting realized that the Poynting vector would play an important role in quantifying electromagnetic energy. In 1888, bolstered by Maxwell’s theory, Heinrich Hertz first succeeded in showing experimental evidence of radiowaves using his spark-gap radio transmitter. The prediction and evidence of radiowaves were the beginning of wireless power transfer (WPT).
Process engineering, optimization and advanced process control
A recent <i>Hydrocarbon Processing</i> “Industry Perspectives” survey found that process engineering and optimization is the number-one topic that readers want to read about most. Process engineering and optimization rated higher than the next-highest topic (maintenance and reliability) by a factor of 2:1, and higher than every other topic by a factor of at least 4:1. Process control and instrumentation made the top ten list, albeit below process engineering and optimization by a factor of 7:1.
The future of digital transformation and smart manufacturing
In today’s challenging oil and gas operations, it is vital to have a robust operating system that supports each facility’s goal of operational excellence (OE). Digital transformation and smart manufacturing are being implemented by Saudi Aramco as a coined umbrella term: integrated manufacturing operations management system (imoms).
Cybersecurity: Crucial defenses for critical infrastructures
A colleague of mine once suggested to a chemical plant operator that it was a good idea to apply patches to Windows-based supervisory control and data acquisition (SCADA) servers as soon as they become available every month—after all, a lot of them fix security vulnerabilities.
Energy savings opportunities in unifining, CCR and benzene removal units
Opportunities are always available to decrease energy consumption in process units.
Accurate prediction of phase equilibrium properties—Part 1
Phase equilibrium properties, such as bubble-point, hydrocarbon dewpoint, water dewpoint, phase envelope, two-phase compositions, compressibility factor, hydrate equilibrium properties, etc., for hydrocarbon mixtures have been calculated accurately using the Peng-Robinson cubic equation of state by implementing constant and temperature-dependent binary interaction parameters in the Van der Waals mixing rule.
- Exxon shut Joliet, Illinois, refinery after power outage 7/17
- Essar launches hydrogen power plant at Stanlow refinery (U.K.) 7/16
- Trelleborg partners with Airbus on hydrogen-powered air travel 7/16
- Neste, Mitsubishi Corporation agree on strategic partnership to develop supply chains for renewable chemicals and plastics 7/16
- Vale, Komatsu and Cummins announce collaboration to develop dual-fuel large trucks, powered by ethanol and diesel 7/16
- Mexico–U.S. energy trade value fell in 2023 on lower fuel prices 7/16
- Digital Exclusive: SPECIAL FOCUS: Digital Technologies—Utilize process simulation digital twin to optimize condensate yield
- Digital Exclusive-Flare system design: Liquid pockets in flare headers
- Hydrogen-rich content gasoline: A new concept for paraffinic gasoline reformulation
- Alarm rationalization at Kuwait National Petroleum Company (KNPC) refineries
