steam cracking

steam cracking

[′stēm ′krak·iŋ]
(chemical engineering)
High-temperature cracking of petroleum hydrocarbons in the presence of steam.
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Naphtha is also used as feedstock for the production of propylene, ethylene and aromatics, while gas oil is used as feedstock in steam cracking process.
In the US, naphtha is needed to make gasoline, still the dominant road, but ethane from shale oil and gas is now available in increasingly larger volumes and at a cheap supply cost for steam cracking. In the Middle East, significant volumes of gas co-produced with crude oil were flared off until it was decided to develop a petrochemical industry to produce higher-value streams from the cheap and ample domestic supply of ethane.
Through its operations in its integrated complex in Sohar, which includes refineries, aromatics plant, steam cracking unit, polypropylene and polyethylene plants, Orpic will become one of the most effective companies in the merger refineries and petrochemical industries in the world, which will enable the company to achieve the maximum value of the Sultanate's production of hydrocarbons.
The new complex would rely on advanced proprietary technologies in direct crude steam cracking and performance polymers manufacturing.
The new plants expand on ExxonMobil's flexible steam cracking capability in Singapore, which provides a range of feedstocks for upgraded specialty products to meet growing long-term demand in Asia Pacific.
They contain a steam cracking unit, which has a value of $2.8bn, and a polypropylene and polyethylene production unit, worth $888m.
It contained the steam cracking unit at a cost of USD2.8 billion, and the polypropylene and polyethylene production unit at a cost of USD888 million.
Steam cracking is an uncatalyzed, thermal cracking process used in the petrochemical industry to break down hydrocarbons.
However, the use of lighter feed stock for steam cracking is gradually resulting in a tightened demand/supply scenario, owing to which global players are either expanding their existing capacities or adding new facilities for production.