Cracking furnaces are the most important pieces of equipment within ethylene plants because they define the product yield of the entire plant. Selas supplies the highest capacity ethylene furnaces available in this industry. In cracking furnaces, raw materials asuch as ethane, liquefied petroleum gas (LPG), naphtha, atmospheric gas oil (AGO) and hydrocracker residue are converted into ethylene and valuable by-products.
Linde’s proprietary PyroCrack ® technology optimally meets customer requirements for the full spectrum of feedstocks. Linde’s exclusive short-residence time coil designs achieve maximum olefin yields and excellent furnace run lengths. In cracking furnaces, cracked gases are produced after quenching and delivered to the separation train where the cracked gas can be separated into individual products. Selas twin radiant cell design, two radiant cell cracking furnaces with a common intermediate convection section, has been designed with ethylene production capacities of up to 250 metric tons per year.
These capacities allow Linde to supply today’s mega-crackers while minimizing the number of furnaces needed for these plants. As a result, our furnace capacities set the benchmark regarding capital and operational expenditure for cracking furnaces. Selas furnaces have consistently fulfilled their guarantees regarding thermal efficiencies and emissions. Linde provides ethylene furnaces that comply with all environmental requirements and are therefore low on emissions. The furnaces are equipped with state-of-the-art low NOx or ultra-low NOx burners, or Linde can design them with a selective catalytic reduction (SCR) system incorporated in the convection section.
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This report presents current commercial process technology, and the corresponding production economics, for a) producing ethylene via 100% ethane steam cracking, b) producing ethylene via 50:50 ethane:propane steam cracking, and c) producing ethylene via 100% n-butane steam cracking.
Borealis can supply a broad range of innovative and high-quality base chemicals Borealis sources basic feedstocks such as naphtha, butane, propane and ethane from the oil and gas industry and converts these into ethylene and propylene through its olefin units. Steam crackers in Finland, Sweden, and Abu Dhabi, the latter operated by Borouge, produce both ethylene and propylene, while propylene is also produced in a propane dehydrogenation plant in Kallo, Belgium. Feedstock and olefins required for Borealis and Borouge plants are either sourced from its owners or purchased from the markets. A range of co-products from the steam cracking process, including pygas and butadiene are also sold to international markets. Partnering with the oil and gas industry, Borealis is a major feedstock buyer and can supply a broad range of innovative and high-quality base chemicals:.
Olefin monomers such as ethylene and propylene. Other hydrocarbon building blocks like butadiene, butylenes and benzene.