September 2014

Process Control

Choose the right metering technology for ethylene furnaces

An ethylene plant’s main purpose is to convert hydrocarbon feedstock, usually natural gas liquids or naphtha, into a “cracked gas” that contains ethylene and other higher value products..

Lieberg, M., Pihlaja, R., Emerson Process Management

An ethylene plant’s main purpose is to convert hydrocarbon feedstock, usually natural gas liquids or naphtha, into a “cracked gas” that contains ethylene and other higher value products. Such plants exist to produce cracked gas in a pyrolysis furnace and recover valuable products within the cracked gas via separation. There are four common flow control applications within the furnaces used to produce cracked gas. Choosing the right flowmeter technology to measure the necessary parameters in the cracked gas production process can lower cost and schedule risk for a greenfield ethylene project. Other benefits include lower cost for operation and furnace maintenance. Normal cracki

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