What is the distribution of the pyrolysis products of one ton of naphtha? Is this number reliable?
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Do you know anyone who works at a refinery? The output from the cracking of one ton of naphtha is: 0.3 tons of ethylene, 0.2 tons of propylene, 0.15 tons of butadiene, and 0.35 tons of toluene. Is this data reliable? It feels like there’s too much benzene and toluene. . There is another set of numbers: 0.2 propylene, 0.3 ethylene, 0.05 butadiene, 0.08 pure benzene. Another by-product is liquefied gas. Which group seems more reliable?
Thank you. . . Do you work at a refinery? Do you know what the approximate yield is?
How is it possible that the products of ethylene cracking from naphtha consist only of these four components? For the first set of data, the sum of the four components amounts to one ton. If the yield is this good, profits from ethylene will be enormous; in addition to the yield of trienes, there are also other products such as cracked C5 compounds, cracked C9 compounds, and ethylene tar
Naphtha cracking products are related to the degree of cracking as well as the composition of your feedstock
This post was last edited by qugd on 2017-10-16 at 15:51. The naphtha cracking products are related to the group composition of naphtha (PONA). Naphtha used for ethylene cracking is preferably a feedstock that contains no aromatics and cycloparaffins, or as few as possible. The first set of data is completely unreliable, because it is inevitable that hydrogen, methane, and some other small molecular saturated hydrocarbons are produced during the pyrolysis process ； Furthermore, the naphtha used as the raw material in this set of data must contain a high level of cycloalkanes and heavier components. The second set of data should be the cracking data for very light naphtha feedstocks, and is relatively more reliable.