Date of this Version
Mason, Andrew, et al. DigitalCommons University of Nebraska-Lincoln, 2020, pp. 1–177, Upgrading Cracking Waste to Rubber Precursors via Oxidative Dehydrogenation.
To: Dr. Yasar Demirel, Professor, University of Nebraska-Lincoln
As the result of process changes within an ethylene cracking plant, the amount of a C4 byproduct waste stream has significantly increased (Fabiano, Nedwick 1999). A system of extractive distillation and catalytic oxidative dehydrogenation can be used to add value to this C4 waste stream by producing high purity 1,3-Butadiene, an important rubber precursor. 1,3-Butadiene is a critical component of multiple consumer goods, including automobile tires and synthetic rubber and has a steadily increasing demand, reaching 10 million metric tons in 2012 (Biddy, Scarlata, Kinchin, 2016). The simulation assumes a feed flow rate of 30,000 lb/hr of mixed low grade fuel containing the composition provided in Table 1, with outputs of 16,900 lb/hr of 99% pure 1,3-Butadiene and 10,800 lb/hr of fuel byproduct. The fuel byproduct is mixed and sold under the same low grade fuel rating the mixed feed was previously sold by.