topsoe hydrocracking processes 2011
TRANSCRIPT
Hydrocracking processes
Haldor Topsøe A/S – Nymøllevej 55 2800 Kgs. Lyngby - Denmark
Topsøe HC processes 1 / 16
JEOM/PZ/PEVB/MKJ 20 August 2010
Information contained herein is confidential; it may not be used for any purpose other than for which it has been issued, and may not be used by or disclosed to third parties without written approval of Haldor Topsøe A/S.
Contents
1 Topsøe hydrocracking processes 2
2 Hydrogen optimisation 5
3 Hydrocracking technology experience 5
4 Energy conservation in hydroprocessing units 8
5 Cat feed hydrotreater license references 11
6 Hydrocracking catalysts 12
7 Catalyst references 15
Haldor Topsøe A/S – Nymøllevej 55 2800 Kgs. Lyngby - Denmark
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Information contained herein is confidential; it may not be used for any purpose other than for which it has been issued, and may not be used by or disclosed to third parties without written approval of Haldor Topsøe A/S.
1 Topsøe hydrocracking processes
Haldor Topsøe has licensed five hydrocrackers including full conversion single-stage
and two-stage hydrocracking processes and a partial conversion hydrocracking
process. For partial conversion hydrocracking, we offer once-through hydrocracking,
mild hydrocracking (MHC) with integral diesel post treatment, and our patented staged
partial conversion (SPC) process. A simplified process diagram illustrating the MHC
process with integral diesel post treatment and SPC are shown in the below figures.
Topsoe MHC Process with Distillate Post Treatment
VGO
NAPHTHA
FCC FEED
MHC
REACTOR
H2S
HYDROGEN
FRACTIONATOR
LGO
NAPHTHA
HGO
ULSD
STRIPPER
HGO POST-TREAT
REACTOR
MHC
EFFLUENT
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Topsoe Staged Partial Conversion Process
FEED
NAPHTHA
DIESEL
FCC FEED
GAS
HDS
REACTOR
H2S
HYDROGEN
HDC
STRIPPER FRACTIONATOR
HDC
REACTOR
HDS
STRIPPER
For the Topsøe MHC process with integral diesel post treatment, the reaction section
operates at medium pressure (60 to 100 barg) to produce the desired FCC feed quality.
The post treatment stage upgrades the heavy gas oil product from the MHC by
hydrotreating or hydrocracking to produce the desired ULSD quality. A comparison of a
MHC process with a high pressure partial conversion and Topsøe MHC with post
treatment is shown below:
Configuration MHC
(Base)
High pressure
HDC
MHC with
post treat
Reactor pressure barg 80 160 80
Gross conversion %vol. 30 30 30
Diesel yield %vol. 29 30 28
Diesel sulphur wppm 50 10 10
Diesel density kg/m3 875 845 845
Diesel cetane no. D-613 40 51 51
Total installed cost Base 1.4*Base 1.3*Base
Capex savings
(relative to HP HDC)
€/ TPD
$/BPD
2400
400
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Hydrogen demand Base 2.2*Base 1.4*Base
Hydrogen savings
(relative to HP HDC)
Nm3/m3
SCFB
50 - 80
300 - 500
The SPC process incorporates a staged reaction system in which a portion of the
heavy gas oil product from the lead hydrodesulphurisation (HDS) reactor is bypassed
on flow control reducing the net charge rate to the second series flow hydrocracking
(HDC) reactor. This allows the net conversion level in the second reactor to be
substantially higher than the overall gross conversion requirement for producing FCC
feed. Increased conversion dramatically improves the middle distillate product. Severity
in the lead reactor is controlled independently based on the minimum HDS requirement
for the FCC feed to make ultra low sulphur gasoline. Severity in the lag reactor is
controlled based on meeting ultra low sulphur kerosene and diesel fuel requirements
including smoke point, density and cetane quality.
The separation of gas and liquid in the bottom of the lead reactor vessel is achieved
without the need for any complex internals arrangement and uses a minimum of
reactor height. Simple flow control is utilised to split the liquid phase from the bottom of
the lead reactor.
A comparison between a MHC process, a high pressure partial conversion process,
and the SPC process is shown in the table below:
Configuration MHC
(Base)
High pressure
HDC
Topsøe
SPC
Reactor pressure barg 100 160 100
Gross conversion %vol. 30 30 30
Diesel yield %vol. 31.0 31.5 28.0
Diesel sulphur wppm 10 10 10
Diesel density kg/m3 875 845 845
Diesel cetane index D-4737 46 52 47
Total installed cost Base 1.3*Base 1.1*Base
Capex savings MM€/TPD 3000
Hydrogen demand Base 1.8*Base 1.3*Base
Hydrogen savings Nm3/tonne 50
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Haldor Topsøe has constructed a pilot plant to demonstrate the SPC process and
performed substantial testing and different feedstocks to provide an application
database for the new technology.
2 Hydrogen optimisation
Haldor Topsøe optimises the hydrogen usage in a hydrocracker to achieve the process
and product objectives by:
- Using high selectivity hydrocracking catalysts to reduce light ends make and maximise middle distillates to reduce hydrogen consumption.
- Using different families of hydrocracking catalysts tailored to achieve desired product properties. For example, one family of catalysts is used to maximise hydrogen uptake to produce high viscosity index unconverted oil used for lube production, while another catalyst family is used to reduce mono-aromatic saturation in the unconverted oil used as FCC feed.
- Incorporating process features for the recovery of the soluble hydrogen from the off gases of the hydrocracker.
3 Hydrocracking technology experience
Topsøe has licensed five hydrocrackers – two revamps and three grass-roots units in
the last five years. Four of the licensed units were won in the last two years. The
reasons why Topsøe was chosen as the hydrocracking licensor by our clients are:
- Topsøe has hired engineers with vast experience in the design, start-up and operation of hydrocracking units.
- Topsøe has developed a family of commercially demonstrated pre-treating and hydrocracking catalysts. Our latest BRIMTM hydrotreating catalysts are the best performing hydrocracker pretreat catalysts on the market today. Topsøe offers commercially proven hydrocracking catalysts for maximum middle distillate service and for flexible co-production of naphtha and middle distillate.
- Our maximum middle distillate hydrocracking catalysts produce distillates with excellent cold flow properties due to enhanced isomerisation activity.
- Topsøe has developed commercially proven reactor internals for hydroprocessing units to maximize utilization of the catalysts activities.
- Topsøe can confirm operating conditions, yields and product properties in our state-of-the-art pilot plants.
- Topsøe can provide customer focussed technical services using experienced hydrocracking experts.
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The scope of supply for all five licensed units consists of hydrocracking technology
license, engineering, catalysts, reactor internals, and technical services. In addition,
scoping studies were performed for three projects to help the client better define the
project scope prior to start of engineering.
Below is a summary of the hydrocracking units licensed by Topsøe.
OMV/Petrom, Petrobrazi Refinery, Romania
OMV/Petrom licensed Topsøe’s hydrocracking technology for a 34,000 bpsd grass-
roots hydrocracking unit at the Petrobrazi Refinery in Romania. The unit will provide a
high conversion of a mixture of heavy vacuum gasoil and heavy coker gas oil into high
quality diesel and jet fuel products. The new hydrocracker forms part of an overall
project for expanding the capacity of the Petrobrazi Refinery to 6 million tonnes of
crudes per year.
The hydrocracker feed contains 2000 wppm nitrogen. It is a blend of 80 wt% heavy
vacuum gas oil (HVGO) and 20 wt% heavy coker gas oil (HCGO). Topsøe was one of
three licensors that competed in a paid study and was chosen as the licensor by OMV
after a thorough evaluation. Topsøe presented study cases covering 55% and 75%
conversion to ULSD and lighter. The study deliverables includes PFD and sized
equipment to allow independent cost estimates to be done by the client’s contractor.
During the study phase, the client ran tests in their hydrocracker pilot plant which
confirmed Topsøe’s technical performance predictions.
Topsøe produced an engineering design package for this unit and participated in FEED
development with the clients selected contractor. The client awarded the project to
Topsøe in November 2007.
Undisclosed Refinery A
This refinery has licensed a grass-roots 42,000 bpsd single stage full conversion
hydrocracking unit from Topsøe. The unit is designed to maximise diesel production
from converting vacuum gas oil. Start up is expected to be in 2015.
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Information contained herein is confidential; it may not be used for any purpose other than for which it has been issued, and may not be used by or disclosed to third parties without written approval of Haldor Topsøe A/S.
Undisclosed Refinery B
An undisclosed refinery has licensed a Topsøe hydrocracker for a 65,000 bpsd grass-
roots full conversion hydrocracker unit with a post-cracking reactor for maximising light
naphtha yield by cracking heavy naphtha and kerosene. Topsøe’s hydrocracking
technology was selected based on an innovative and cost-efficient solution for
maximising the production of diesel and light naphtha. The unit is expected to start up
in 2016.
Preem AB, Gothenburg, Sweden - Revamp to mild hydrocracking unit
In 2002, Preem AB in Gothenburg, Sweden awarded a license to Topsøe for the
revamp of an existing AKZO Makfining unit for partial conversion hydrocracking of
heavy atmospheric gas oil. A secondary revamp objective was to increase unit capacity
by 27% to 9,100 bpsd. The reactor was revamped with Topsøe internals, and a full
load of partial conversion hydrocracking catalysts was installed in this unit. The product
fractionation system was revamped to allow withdrawal of middle distillate blend
streams with optimum endpoints to maximise diesel pools.
Preem increased the middle distillate yield with Topsøe high mid-distillate NiW
hydrocracking catalysts. The diesel product fulfilled the project objectives, meeting with
a good margin cloud point and colour specifications with a very low sulphur level of < 2
wppm. The excellent cloud point obtained allowed an increase in diesel endpoint and
yield.
Following a study phase including pilot plant work, the revamp project was completed
on time with a short schedule and was successfully started up in July 2003 after a
normal refinery turn-around. Topsøe and Preem engineers co-authored a paper
presented in the July 2005 issue of Hydrocarbon Engineering.
Slovnaft Bratislava Refinery, Slovakia
Topsøe was awarded a hydrocracker license to revamp the 24,000 bpsd Slovnaft
hydrocracker in 2007 (original licensor is UOP) in Bratislava Refinery in Slovakia. The
scope of supply is license, catalyst, reactor internals, and engineering. A revamp study
was done by Topsøe to achieve the following goals:
- Change the catalyst and define the equipment revamp scope required to shift from co-production of naphtha and middle distillate to maximum middle distillate operation
- Determine the maximum feed rate feasible without modifications of major equipment
- Provide new process simulation of the entire the hydrocracking unit (including fractionation section) for new operating mode
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- Define the impact of adding LCO as a feed component - Recommend latest operating and maintenance best practices - Define the benefit of reactor internals replacement using Topsøe’s new
internals - Recommend HPNA management strategy - Recommend improvement in unit safety and reliability - Recommend improvement in energy and on stream efficiency - Recommend solutions to a list of current operating constraints and bottlenecks - Provide size and cost estimate for new or modified equipment.
Based on the study results, Slovnaft obtained management approval for the revamp
project. Topsøe delivered a process design package for the revamp in 2008. The
process design included detail design of the revamped reactor internals for three
reactors. The main catalyst system used in the revamp was TK-605 BRIM™ for
hydrocracker feed pretreat and TK-951, TK931, and TK-926 hydrocracking catalysts.
The combination of these catalysts offers flexibility of product slate and superior
product quality. The revamped unit started up successfully in 2009 and met all
guarantees.
4 Energy conservation in hydroprocessing units
Energy consumption in hydroprocessing units is related in large part to the pumping
and compression of process fluids to reaction pressures, heating reactants to reaction
temperatures, and the separation and final cooling of refined products. This energy is
supplied to the process through the use of utilities such as electrical power, fuel for
combustion heat and steam and represents substantial operating costs for
hydroprocessing facilities.
Reactor and catalyst technology
Haldor Topsøe designs hydroprocessing units to achieve the required reaction
performance at the optimum conditions of temperature, pressure, and gas circulation
rate and thereby minimising the associated capex and energy consumption. This
detailed knowledge of how the catalyst performance can be optimised leads to the
lowest possible capital cost in addition to the most energy efficient design.
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Substantial energy is consumed to overcome the hydraulic pressure drop associated
with the operation of fixed catalyst bed hydroprocessing reactors. Topsøe catalysts are
manufactured in a variety of shapes and sizes to both minimise pressure drop and
prevent the increase in pressure drop associated with the build up of deposits within
the catalyst bed. The use of state of the art reactor internals insures that the distribution
and temperature control required for optimum catalyst performance can be achieved
without the need for high catalyst bed pressure drop and corresponding energy
consumption.
Heat integration
The reactions associated with hydroprocessing are exothermic and release substantial
amounts of heat. This energy can be recovered by heat exchange and used to
minimise the need for utility heating by fuel gas or steam. The feed to the reactor is
preheated by exchange with the product exiting the reactor at higher temperature. The
heat content of the reactor product can also be utilised to off-set a portion of the heat
input required for product separation by distillation. Though it is not a preferred design
approach, in some cases the reactor product heat can also be used for steam
generation and thereby achieve increased efficiency by reducing the need for steam
production outside the hydroprocessing unit.
Maximising the use of process heat integration in a hydrocracking unit can reduce the
required heat input to the fractionation section by 30 to 50 percent. In a modern facility,
the capital cost associated with the large heat exchanger surface area required for
such integration is easily justified by energy conservation and reduction of carbon
emission.
Power recovery turbines
Some of the energy content of liquids at high pressure can be recovered through the
use of hydraulic power recovery turbines. These turbines recover power when the fluid
is expanded from high pressure to low pressure and can be used to drive mechanical
equipment directly or can be coupled to an electrical generator. Most commonly in
hydroprocessing units, a turbine on the hydrocarbon product fluid is used to help drive
the hydrocarbon feed pump. If the unit is equipped with a high pressure amine
absorber, a turbine on the rich amine fluid can provide power to the lean amine booster
pump. As much as 50 to 70 percent of the electrical pumping power can be saved in
these applications.
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Information contained herein is confidential; it may not be used for any purpose other than for which it has been issued, and may not be used by or disclosed to third parties without written approval of Haldor Topsøe A/S.
High efficiency process heaters
High level process heat is generally supplied to hydroprocessing units by fuel gas
combustion in fired heaters. High energy efficiency can be achieved through the use of
steam generation and combustion air preheat by the hot flue gas generated in the
heater. Such a heater configuration is illustrated in the below sketch. Air preheat
reduces the amount of flue gas combustion needed to supply the process heat
requirements. Steam generation can in many cases fully produce all the steam needed
within the hydroprocessing unit and even export steam for general purpose use in the
refinery. The extra cost associated with such systems is justified by energy
conservations and the reduction of carbon emission.
Process heat can also be supplied in conjunction with electrical power through the use
of a gas turbine co-generation scheme. The hot flue gas from the gas turbine is used to
supply the process heat while also producing steam and electricity. Such schemes are
considerably more expensive than conventional high efficiency heater systems and
therefore much more difficult to justify.
High Efficiency Process Heater Configuration
REACTOR
CHARGEHEATER
FRACTIONATOR
CH ARGEHEATER
COMBUSTIONAIR
STACK
REFINERY
STEAM
BFW
BOILERSUPERHEATER
AIR
PREHEATERATM
STEAM
DRUM
FLUE GAS
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5 Cat feed hydrotreater license references
Marathon/Ashland Petroleum (MPC) - revamp of Catlettsburg FCC pretreating
units
Topsøe licensed two FCC pretreating unit revamps to MPC. One is a 35,000 BPD low
pressure VGO (LPVGO) hydrotreater and the other is a 60,000 BPD high pressure
VGO (HPVGO) hydrotreater. The processing objective for these units is to reduce the
sulphur content in the feedstock from the two FCC pretreating units to approximately
500 wppm and 750 wppm respectively. The combined FCC feed allows the refinery to
produce gasoline meeting the 40 wppm EPA specification without FCC gasoline post
treatment. Topsøe supplied license, engineering, reactor internals, and catalyst for
these two units.
Topsøe delivered the engineering packages for the revamps in July 2001. Two new
lead reactors and two new lag reactors were designed and fabricated for the HPVGO
unit, and four existing reactors were relocated to the LPVGO unit and fitted with
Topsøe reactor internals. The new reactors plus internals for this project were shipped
in August, 2002. The HPVGO unit started up successfully in June 2003 and met all
guarantees. The LPVGO unit started up in February 2004 and met all guarantees.
Undisclosed Refinery A – 1st FCC pretreating unit
In November 2001, Topsøe executed an alliance agreement with Refinery A to use
Topsøe hydroprocessing technology for the design of new and/or revamped cat feed
hydrotreaters (CFHT) within its refining system. The initial project under this alliance is
a grass-roots 33,000 BPD CFHT. Topsøe delivered a process design package for the
unit in May 2002. The processing objective for this project is to reduce the sulphur in
the FCC feed to approximately 700 wppm, which will enable the FCC to produce full
range naphtha with a sulphur content less than 50 wppm. Topsøe supplied license,
engineering, reactor internals, and catalysts for this unit.
The unit started up successfully in November 2005 meeting all guarantees. A process
study has been prepared for increasing the feed capacity to 39,000 bpsd while
processing much tougher Canadian crudes. These recommended revamp
requirements are currently being implemented.
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Information contained herein is confidential; it may not be used for any purpose other than for which it has been issued, and may not be used by or disclosed to third parties without written approval of Haldor Topsøe A/S.
Undisclosed Client A – 2nd FCC pretreating unit
The second unit to be included under the alliance is the revamp of a 29,000 bpd CFHT
unit. The first phase of this project was installation of a new top distribution tray for an
existing reactor in the VGO hydrotreater in October, 2002. The second phase of this
project includes the revamp and tie-in of a second reactor with Topsøe internals, to
enable the unit to produce a low sulphur FCC feed. Topsøe’s supply for this unit is
license, engineering, reactor internals, and catalysts. The unit started up in April 2006
and has met all guarantees.
6 Hydrocracking catalysts
A hydrocracker is one of the most profitable units in a refinery, partly due to the volume
swell, and partly because it converts heavy feedstocks to lighter and more valuable
products such as naphtha, jet-fuel, kerosene and diesel. The unconverted oil may be
used as feedstock for FCC units, lube oil plants and ethylene plants. Any improvement
in the hydrocracking unit operation significantly improves overall refinery economics.
The proper selection of hydrocracking catalysts offers a great potential for enhancing
the performance of the hydrocracking unit with respect to yield structure, product
properties, throughput and cycle length.
For optimum performance of a hydrocracking catalyst, it is important to have a high-
activity hydrotreating catalyst in front of it to convert organic nitrogen and heavy
aromatic compounds to low levels. Topsøe offers a complete catalyst solution,
comprising hydrotreating and hydrocracking catalysts as well as grading and guard
catalysts.
Maximum middle distillate hydrocracking catalysts
For hydrocracking catalysts, there is often a trade-off between catalyst activity and
product selectivity. There can furthermore be a trade-off between the various product
properties such as the smoke point of the jet fraction, the cetane number and cold flow
properties of the diesel fraction and the viscosity index of the unconverted oil.
At the same time, the refiner is often interested in limiting hydrogen consumption. The
tools that catalyst developers have at hand to address these various requirements are
balancing the hydrogenation function with the acidic function and modifying the two
functions.
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As a result of extensive R&D efforts, Topsøe has developed and commercialised two
series of hydrocracking catalysts which in combination with the appropriate Topsøe
pretreater catalysts from the BRIM™ series have shown to provide a step-out
performance compared to existing hydrocracking catalysts in the industry.
The red hydrocracking catalyst series provides exceptional middle distillate yields
combined with excellent product properties including high cetane number for diesel,
high smoke point for kerosene and high viscosity index for unconverted oil:
The blue hydrocracking catalyst series provides an even better middle distillate yield
with superior cold flow product properties compared to the red series.
The red series
TK-925 is a maximum distillate catalyst. Its main objective is to maximise high-quality
diesel yield while producing unconverted oil with excellent qualities for lube oil plants or
for FCC units.
TK-931 is a middle distillate catalyst designed to produce very high yields of premium-
quality diesel, jet-fuel and lube oil base stocks. Specifically, this catalyst gives a high
smoke point for jet, an excellent cetane number for diesel fraction and a high viscosity
index (VI) for lube base oils.
TK-941 and TK-951 are the recommended catalysts when both high activity and high
yield are important. TK-951 is more active than TK-941, and both provide excellent
middle distillate yields with efficient hydrogen utilisation.
TK-947 is optimised for units at high space velocity and/or low unit pressure. TK-947
has shown excellent performance in both catalyst activity and stability and in product
yields and properties.
The blue series
TK-926 has a high selectivity for diesel production. The acid function of TK-926 has
been modified to enhance the isomerisation reactions and improve the cold flow
properties of the products.
TK-933 and TK-943 are medium-activity catalysts to be used in services, where very
high middle distillate yields, very good cold flow properties and optimised hydrogen
consumption are a must. The diesel cloud point is typically 10-20°C (18-36°F) lower
than that obtained with other catalysts.
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A special acid function modification is used to improve the isomerisation activity and
the middle distillate selectivity. TK-943 is more active than TK-933.
Mild hydrocracking applications
Many hydrocrackers in the refineries operate in mild hydrocracking mode. For these
units, the main objectives are to obtain a certain minimum conversion as well as to
meet specific product properties such as sulphur content, density and cetane number.
Typical pressures are in the 60-110 bar (850-1560 psig) range. Typical conversion is
10-20% for lower pressure units and 30-50% for higher pressure units.
Meeting the product objectives under such conditions can be challenging. Very often
the cycle length is determined not by decline in conversion, but by failure to meet a
product property such as sulphur content in the diesel fraction. Our catalysts exhibit an
excellent nitrogen tolerance, resulting in very stable HDS and HDN activities
throughout the cycle. The optimal catalyst or combination of catalysts depends on feed
quality and available hydrogen.
Hydrocracker pretreatment
The pretreatment stage in a hydrocracker has the primary objective of removing
organic nitrogen, particularly basic nitrogen compounds and aromatics in the feed.
Nitrogen compounds have a significantly negative impact on the activity of the
hydrocracking catalyst and consequently on the performance of the hydrocracker.
The growing interest in processing heavy oils with high nitrogen content has created a
need for pretreatment catalysts with an even higher HDN activity. Depending on the
specific needs, Topsøe has developed two catalysts for this service. The
catalysts are prepared with the proprietary BRIM™ technology, resulting in high activity
for both HDS and in particular HDN. In addition, due to the better utilisation of the
active metals and modified carriers the high activity BRIM™ catalysts have attractive
filling densities.
TK-607 BRIM™ exhibits a very high HDN activity and an excellent stability for high-
pressure hydrocracker services. Sulphur and nitrogen removal are significantly
improved with TK-607 BRIM™ compared to previous generation catalysts TK-605
BRIM™ and TK-565.
TK-561 BRIM™ is a catalyst where the activity for nitrogen removal has been
maximised while maintaining a high HDS activity. TK-561 BRIM™ is the perfect choice
for mild hydrocracking applications, where stability and conversion activity are main
objectives, and product sulphur is the limiting factor.
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7 Catalyst references
Slovnaft a.s., Slovakia has purchased 190 tonnes of catalysts for their high pressure
hydrocracker. The catalysts were purchased for their 3,400 MT/day unit, operating at
150 bar with a conversion at about 95%. This decision was taken based on
experiences with excellent performance of Topsøe’s catalysts since 2005. The feed to
the unit is Russian export blend.
Preem Lysekil, Sweden has decided to follow a successful three-year TK-558 BRIM™
run of their 53.000 bpsd, 71 bar mild hydrocracker unit with a new load of Topsøe
catalysts. This is due to needs for higher conversion when they are in VGO mode of
this unit and improved cold flow properties of the diesel produced in the diesel mode.
ENAP Refinerias Bio Bio, Chile has selected catalyst material from Topsøe for the
first time to their high pressure hydrocracker. This 2,400 MT/day unit operates at 143
bar, aiming at a maximum mid-distillate yield at a net conversion of 70% based on
volume. The processed feed is blends of HVGO and HCGO, and the feed nitrogen
varies from 1,000 to 3,100 ppm N.
ENAP Refinerias Aconcagua, Chile has purchased 224 tonnes of catalysts for their
single-stage hydrocracker. The catalysts were purchased for their 3,000 MT/day unit
operating with a conversion at about 60%. The main objectives are high quality FCC
feed and high quality product diesel. The processed feed is blends of HVGO and VGO.
YPF, Argentina selected Topsøe hydrocracking catalyst system after a series of
detailed pilot plant studies on actual feed and conditions. The main objectives for this
full conversion 140 bar hydrocracker are increased diesel and kerosene yields with
improved properties such as cloud point and cetane index.
Murphy Meraux, LA, USA has awarded Topsøe for their hydrocracker train. This full
load of Topsøe hydrocracker and pretreatment catalysts for the high pressure, 2,450
psi, 32,000 bpsd hydrocracker aims at 41% conversion with the highest possible
selectivity into low sulphur mid distillates. The processed feed is a blend of HVGO,
LVGO and AG with a rather high Si content.
Preem Lysekil, Sweden has awarded Topsøe to their major European hydrocracker.
This is a full load of Topsøe hydrocracker and pretreatment catalysts for this single-
stage two-reactor 142 bar 47,000 bpsd hydrocracker, aiming at a 55% conversion with
good properties of the produced diesel. Most of the feed being processed is Russian
VGO.
Haldor Topsøe A/S – Nymøllevej 55 2800 Kgs. Lyngby - Denmark
Topsøe HC processes 16 / 16
JEOM/PZ/PEVB/MKJ 20 August 2010
Information contained herein is confidential; it may not be used for any purpose other than for which it has been issued, and may not be used by or disclosed to third parties without written approval of Haldor Topsøe A/S.
Saras, Sarroch, Italy decided again to use Topsøe catalysts for their 60,000 bpsd mild
hydrocracker. This unit, aiming at 40-50% conversion and 10 ppm sulphur in the diesel,
requires the most stable catalyst system in order to be able to operate for more than
one year. The feed to this 100 bar unit has an end-point as high as 630ºC.
MOL Szazhalombatta, Hungary decided again to purchase Topsøe hydrocracking
and pretreatment catalysts for their 2010 turnaround in their 6,000 MTPSD MHC unit.
The processed feed is blends of HVGO and HCGO, aiming at a conversion of more
than 27% to high quality diesel. The unit operates at a pressure of 75 bar.
Petro Piar, Venezuela has again, due to very difficult operating conditions of the U16 and an unpredicted short cycle, selected Topsøe hydrocracking catalysts for this major hydrocracking 55,000 bpsd U16, treating very heavy coker gas oil feed.