Investigate processing near-zero-sulfur gasoline
This study considers the effectiveness of undercutting and hydrotreating fluid catalytic cracking feeds to yield ‘cleaner’ fuels
Processing near-zero-sulfur gasoline (NZSG) requires a
significant reduction of sulfur from fluid catalytic cracking
(FCC) gasoline. FCC gasoline contributes about 90% of the
sulfur content in the finished gasoline pool.1
There are advantages and disadvantages in hydrotreating FCC
feed and in post treating FCC gasoline. The main technologies
for reducing gasoline sulfur content have been widely
discussed.27 It is well known that
hydrotreating FCC feed considerably improves the economics of
the FCC unit.8 However, there is no evidence
confirming that hydrotreating FCC feed can consistently meet
10-ppm sulfur (S) levels for FCC gasoline over the long term.
Advances in catalyst technologies
allow the FCC-feed hydrotreaters to meet ultra-low-sulfur
gasoline (less than 50 ppm) level.9 However, NZSG
production remains a challenge for FCC hydrotreating technology. An attempt was made in
the Lukoil Neftochim Bulgaria (LNB) FCC unit to produce 10-ppm
S FCC gasoline by increasing the severity in the FCC feed
hydrotreater. This article discusses the results obtained at
To continue reading please, log in to hydrocarbonprocessing.com.
Subscribe now for premium access and unlimited access to the site, including archived articles and the process handbooks. Start a free trial to gain access to articles from the current issue of Hydrocarbon Processing.
Already have an account?
Subscribe today and gain unlimited and immediate access to the site. Plus, you'll receive the next 12 issues of the magazine in your choice of print or digital format. Start your subscription today.
Start a free trial and gain immediate access to the current issue of the magazine plus additional, select content.
30 Day Trial