Isomerization (Axens Process Licensing)

HIGH OCTANE C5/C6 CUTS VIA ISOMERIZATION PROCESSES MEET MARKET DEMANDS WITH HIGH OCTANE ISOMERIZATION PROCESSES From once-through to advanced recycle isomerization processes, we offer the complete line of isomerization solutions that, by increasing C5/C6 naphtha cut octane numbers up to 92, go far to meet tighter gasoline pool specifications. The isomerate product is free of sulfur, aromatics and olefins, making it an excellent gasoline pool component. Isomerization fits well with the trend to remove benzene precursors from reformer feedstock, and possible co-processing of light reformate fractions can resolve benzene content constraints....

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Cryogenic nitrogen plant

From Wikipedia, the free encyclopedia Nitrogen, as an element of great technical importance, can be produced in a cryogenic nitrogen plant with a purity of more than 99.9999%. Air inside a distillation column is separated at cryogenic temperatures (about 100K/-173°C) to produce high purity nitrogen with 1ppm of impurities. The process is based on the air separation, which was invented by Dr. Carl von Linde in 1895. Purpose Gaseous Nitrogen (GAN) plant with production rate of 800 Nm3/hour The main purpose of a cryogenic nitrogen plant is to provide a customer with high purity gaseous nitrogen (GAN). In addition liquid nitrogen (LIN)...

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Pilot-Operated Relief Valve

Like other pressure relief valves (PRV), pilot operated relief valves (PORV) are used for emergency relief during overpressure events (e.g., a tank gets too hot and the expanding fluid increases the pressure to dangerous levels). The difference between PORV and conventional PRV is that pilot valves use system pressure to seal the valve. A PRV typically uses a spring to hold the disc or piston on seat. The essential parts of a PORV are a pilot valve (or control pilot), a main valve, a pitot tube, the dome, a disc or piston, and a seat. The volume above the piston is called the dome. PORV are also called pilot-operated safety valve...

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