The TOTSUCAT technology for catalyst preactivation will allow for fast an hassle free startup with elimination of common phenomena such as exotherms, water make, hydrogen consumption limitations and excessive H2S partial pressure in the system

1. We Sell Boring Startups
CATALYST SERVICES START UP HYDROTREATING UNITS WITHOUT
THE “EXCITEMENT” OF SULFIDING .
T O T S U C AT P R E A CT I V AT IO N
Allows the fastest and safest startup possible.
S P E CI A L T Y R E G E NE R A T IO N A N D Temperature excursions, DMDS odors, H2S By treating your catalysts with Totsucat
R E J UV E N AT IO N emissions, sour water formation, loss of prior to loading, complicated and time
Get >90% activity from Special Regeneration
production, off-spec product, delays in consuming sulfiding steps won’t be
and/or Rejuvenation. Our techniques are much
processing cracked feeds . . . These issues required. Instead, the catalyst is delivered
different than a simple carbon burn.
make catalyst sulfiding a hazardous, to your site totally activated and ready to
S AS S E R V I C E
unpredictable, and expensive procedure. work.
Only get the “good stuff” back with our Sample,
Analyze, and Segregate Service. The start up of a Hydrotreating Unit, There are no temperature holds during
C AT A L Y S T RE S AL E however, does not have to be so “exciting”. heatup, no requirement for DMDS injection,
Why buy fresh catalysts when regenerated Eurecat offers a “boring” alternative to and no need to measure H2S levels.
catalysts with “like-fresh” activity are available?
in-situ catalyst sulfiding with our patented Totsucat allows you to get online fast
Eurecat stocks a full line of activity-tested ®
Totsucat Preactivation and Sulfiding without risking poor catalyst performance
regenerated catalysts.
service. resulting from incomplete activation.
A CT IV IT Y T E S T I N G
Don’t just rely on surface area and poison levels.
Eurecat now has two multi-tube test units that Eurecat Sulfiding Technologies
measure the true catalyst activity at ULSD
conditions.
EURECAT US 1331 Gemini, Suite 310, Houston, TX, USA 77058 Tel 281.218.0669 WWW.EURECAT.COM

2. BORING IS GOOD TOTSUCAT APPLICATIONS
Pre-Activating hydrotreating catalysts with NAPTHA HYDROTREATERS - Totsucat G has become the sulfiding
Totsucat offers many benefits to the
process of choice for naphtha hydrotreaters as well as other light end applications
refiner including:
including: Tail Gas Units Lube Units
Load-and-Go reactor startups. The Gasoline Post Treat Pygas Hydrotreaters
active metal sulfides are totally formed Hydrogen Plants Petrochemical Units
during the Totsucat treatment. No addi-
ULSD - The latest generation of high activity catalysts are typically used to meet
tional sulfiding agents or complex activa-
the rigorous demands of ULSD units. Our R&D efforts have uncovered advanced
tion procedures are required after loading.
techniques, such as Totsucat D, that achieve the extremely high activity levels
No temperature excursions.
available from these state-of-the-art ULSD catalyst offerings. With Totsucat D,
No need for additional hydrogen at
startup times are minimized and catalytic activity is maximized.
startup.
Minimal sour water formation during HYDROCRACKERS - The performance of hydrocracking catalysts is critical
startup. to the operation of the unit, making it crucial that these specialized catalysts are
No odors or HSE issues related to the treated with the greatest of care. Processing with Totsucat HC ensures that
handling of sulfiding chemicals. hydrocracking catalysts function as designed without the need to spend valuable
Negligible amounts of H2S are released production time on in-situ sulfiding. In addition, these catalysts are often
during reactor heat up, protecting sulfur passivated with ammonia after the sulfiding step. If required, Totsucat HC can also
sensitive units downstream and avoiding include ex-situ nitrogen passivation, enabling the refiner to avoid ammonia
sulfur releases to the stack during tail gas injection. And Totsucat N is designed to maximize the HDN activity of the newest
unit startups. NiMo catalysts that are typically used in the pretreat section of the hydrocracker.
Starting up with Totsucat-treated catalysts CAT FEED / VGO HYDROTREATERS - Totsucat E is specially designed
is similar to a restart after an emergency for large units with high sulfur feeds (S > 0.5 wt%). Totsucat E works especially
shut down. Startup time is reduced to a well in heavy distillate hydrotreaters and gasoil hydrotreaters (GOHT) where long
few hours while the risk of damaging the startup times and the threat of sulfiding exotherms are problematic. With
catalyst prior to activation is eliminated. Totsucat E, the catalyst will reach full activity within hours of startup instead of
The catalyst load will achieve peak days. Totsucat E pre-activated catalysts can also be delivered in a passivated
performance since sulfiding and activation form that makes it possible to load the reactor under air.
has been controlled at very precise
conditions by the patented Totsucat
START UP WITH CRACKED FEEDS - Eurecat has developed an
process.
exclusive procedure to gently moderate catalyst activity following sulfiding. This
unique process, called Totsucat CFP, allows the direct introduction of cracked or
heavy feeds without the 3-4 day delay typically recommended by catalyst
manufacturers. Catalysts treated with Totsucat CFP are no longer ultra active after
sulfiding, allowing the refiner to gradually introduce cracked and heavy feedstocks
during the first hours of a startup without causing permanent damage to the
Sulfiding Technologies catalyst. Excess coke and gum formation will be prevented since the catalyst
activity has been carefully modified following activation.
EURECAT US 1331 Gemini, Suite 310, Houston, TX, USA 77058 Tel 281.218.0669 WWW.EURECAT.COM