C4 / C5 Fractions and Derivatives
Using naphtha as a raw material, an ethylene plant produces highly reactive materials in C4 (BB) fractions or C5 fractions as by-products. Butadiene in the C4 fractions and isoprene in the C5 fractions in particular, are useful chemicals as they are used to produce synthetic rubber such as tires for cars.
[ C4 / C5 Fractions and Derivatives ]
![[ C4 / C5 Fractions and Its Derivatives ]](/service/img/chemistry05_e.jpg)
Key projects
About 50% of C4 (BB) fractions produced from thermal decomposition of naphtha is butadiene, which is generally separated using a special distillation technique called extractive distillation. We have constructed a lot of plants that employ processes that use such solvents as normal methyl pyroridon (NMP) or dimethyl formaldehyde (DMF). In the latter half of the 1990s, we constructed a large MTBE plant with an annual production of more than 500,000 tons in the Middle East.
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- Metals and Materials
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- Life Science
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- Pharmaceutical
- Biopharmaceuticals
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- Support Services for FDA/EU Inspections and a Professional Service Agreement with Jacobs
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