Feed oils, hydrocarbon distribution

Product Distribution. In addition to ethylene, many by-products are also formed. Typical product distributions for various feeds from a typical short residence time furnace are shown in Table 5. The product distribution is strongly influenced by residence time, hydrocarbon partial pressure, steam-to-oil ratio, and coil outlet pressure. 

When heavy oils are cracked in a catalytic or thermal cracking process, lighter hydrocarbon compounds are formed. Most cracking processes on heavy oil feeds form products with carbon numbers ranging from 2 to greater than 20. How does the equilibrium distribution of hydrocarbon compounds with five carbons (C5 compounds) change as the temperature of the cracking process is increased at 200 kPa ... 

The removal of all mercury species from liquid hydrocarbon feedstocks (raw condensates, crude oil, condensate cuts) is difficult since the majority of the mercury in these feeds is in organometallic form. Most of the time the presence of mercury is associated with the injection of natural gas condensates into the steam cracker. These heavy condensates can contain very high levels of mercury compounds and these mercury species are spread over all the cuts according the following distribution 0-5 % C2, 30-35 % C3, 55-65% C4, 5-10% others cuts. 

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