Haldor Topsoe Exchange Reformer (HTER™)
Makes it easier to
go big in hydrogen
production
Use a Topsoe HTER solution to produce up to 30% more hydrogen
with 7% less feed and fuel. Even if there’s hardly any space available.
www.topsoe.com
02      Haldor Topsoe
Scaling up for a
flexible future
A Haldor Topsoe Exchange Reformer
(HTER) installation enables you to go
big in hydrogen production by putting
both feed and fuel to the most cost-
effective use for i.e, reforming rather
than just co-producing a lot of steam.
It’s a quick, cost efficient way to add
as much as 30% extra capacity to
any existing hydrogen production
setup – and using up to 7% less
fuel and feed per unit of hydrogen
produced.
It also provides you with a quick,
relatively inexpensive way to add
major flexibility to your hydrogen
production capabilities.
And if you’re planning a new hydrogen
plant, but don’t need the full capacity
right away, you can postpone a big
part of the investment until you
actually need it.
Key benefits:
          30%                             7%          40%
 Boost hydrogen output            Feed and fuel    Cheaper than
                                 minimum savings    a new plant
Haldor Topsoe Exchange Reformer (HTER)   03
04       Haldor Topsoe
Making the most of what
you’ve got
The HTER technologies enable you to                    Exploiting process heat for reforming     with a tubular reformer (SMR) or with
make the most effective possible use                   saves fuel consumption. The steam         a two-step reforming configuration
of the valuable thermal energy in the                  co-production could be made up by         (an SMR followed by a secondary
reformer effluent by using it for                      another unit using a cheaper fuel         reformer).
additional reforming rather than for                   than the hydrogen plant, resulting in
steam production. Less steam, more                     significant savings.
hydrogen.
                                                       An HTER setup enables you to carry
An HTER carries out steam reforming                    out steam reforming parallel with the
in parallel with the primary steam                     primary steam reformer.You can use
reformer. It is a very compact,                        an HTER reformer in combination with
cost-effective piece of equipment.                     an autothermal reformer SynCOR™
                                                                                                                           Steam
                                                            Flue gas
 Natural
 gas                                                Steam                                                                       H2
                Purification                                                HTER               WHB            Shift & PSA
                                                  reforming
                                                                   ~900°C          ~600°C            ~300°C
 Fuel
Fig. 1. Energy conservation - Desired H2 product using less feed and fuel
                                                                                            Haldor Topsoe Exchange Reformer (HTER)       05
The benefits stack up
Conserves energy                                        Compact and cost-effective                Design flexibility
•	 Less feed and fuel used                              •	 Process intensification for            •	 Easily configurable to individual
•	 Less steam export                                       reforming and process/partial             operating requirements
•	 Reduced emissions                                       cooling                                •	 Customization ensures the best
                                                        •	 Can be fitted into even small             possible return on investment
Safe, proven operation                                     spaces
•	 Easy to operate
•	 15+ years of proven installation
   experience
Process steam
                                   Prereformer
                                                                                           Tubular
                                                                                           reformer
Feed
                                                                                                                            Syngas
                                                                                                           HTER
Flue gas
Fuel gas
Fig. 2. Typical installation of an HTER in a hydrogen plant
06       Haldor Topsoe
Process intensification
More with less                                        reforming, pressure drop, catalyst                     single slim reactor – which you can
Reforming requires heat transfer into                 temperature profile, and material                      locate in just about any small space
the reforming tubes. The HTER                         selection.                                             – rather than a conventional reformer.
technology is based on the efficient
convective transmission of the heat                   In an HTER, reforming and process                      It’s almost always the cheapest way
to the reforming catalyst, using many                 cooling are combined into a very                       to build new capacity.
years of practical experience and                     compact, cost-effective installation
detailed understanding of the setup                   that is typically 40% less than for a
in terms of heat transfer, steam                      new plant. You only need room for a
Fig. 3. The HTER (blue) takes up very little space next to the steam reformer (grey) while adding up to 30% extra capacity
                                                                                  Haldor Topsoe Exchange Reformer (HTER)       07
Hydrogen instead of steam               reliable technology. It is also used in         area to insert a remarkable 30%
An HTER installation uses the           flue gas-based convective reforming             output boost, with minimum capital
hydrogen plant’s high temperature       (HTCR) and bayonet reformers (TBR).             expenditure and operating costs.
heat to provide additional reforming    It’s been comprehensively tested, and           HTER setups are equally effective
capacity rather than for simply         the reliability and performance of the          for debottlenecking and revamping
producing steam. This reduce your       HTER design are well-proven.                    existing hydrogen plants and as an
steam export by 45–60%. You can                                                         integral part of high-efficiency new
produce that steam more cost-           •	 The tube bundle inside the HTER is           hydrogen plants.
effectively elsewhere, using cheaper,      inserted into a ceramic-lined steel
simpler fuel.                              pressure shell and only subjected            Rapid transitions
                                           to small differential pressures.             Installation of an HTER a setup can
Lower emissions                            This greatly extends service life.           usually be slotted into a normal
The smaller flue gas flow from an                                                       turnaround window because most of
HTER setup also enables you to          •	 A long service life because the              the engineering and preinstallation
reduce CO2, NOx and other emissions        metallurgy in the reforming tubes            work is done offsite, and the reactor
from your hydrogen plant.                  has been selected to cater for the           can just be craned in quickly.
                                           particular local gas composition             Time is money, and Topsoe experts
Topsoe HTER installations have             and temperatures, and to prevent             will help you make the switch as
resulted in documented 7% reduction        corrosion.                                   quickly and effectively as possible.
in CO2 emissions per unit of hydrogen
produced.                               Small footprint path to more cost-
                                        effective hydrogen production
Safe choice                             For many refineries and hydrogen
The HTER technology is an ideal         installations, simple lack of space
choice for larger-capacity hydrogen     can mean that a compact HTER
production.                             configuration is the only viable option
                                        for expanding output.
The convective reforming at the         The compact technology makes
heart of the HTER is a well-proven,     it easy to exploit even a small
30% more
hydrogen
with 7%
less feed
and fuel
                                                                                     Haldor Topsoe Exchange Reformer (HTER)    09
Case
Revamp with HTER solution helps Indian refinery boost
hydrogen production by 27%
“This success will definitely be repeated at other refineries looking to boost
 hydrogen production via a cost-effective revamp of existing plants.”
                                         — Mr. Bimlesh Gupta, Chief Manager (Technical Services), Numaligarh Refinery, India
Challenge                                   Solution                                       Outcome
More stringent fuel content                 The cost-benefit analysis showed               The project has been a great success,
regulations are forcing refineries to       that revamping Numaligarh’s existing           reducing feed and fuel consumption
desulfurize and dearomatize more            unit would provide the required                per 1,000 Nm3 hydrogen produced
than ever, boosting the demand for          additional capacity at the lowest              by 6.5% and reducing steam export,
hydrogen at refineries around the           total cost, so the refinery went ahead         while enabling the plant to meet its
world. In India, the government’s           and implemented the revamp. As part            target of boosting hydrogen capacity
auto fuel policy, which stipulated          of this project, Numaligarh decided            by 27% or 14,600 Nm3/h. The
production of E-III and IV grade fuel       to incorporate a Haldor Topsoe                 integration into the hydrogen section
starting in April 2010, led to a sharp      Exchange Reformer solution tailored            and startup were trouble-free, and
rise in hydrogen needs at Numaligarh        to meet the refinery’s exact needs.            since 2010 the plant has delivered
Refinery. To decide how best to meet        The solution fits easily into a small          the hydrogen needed to meet the
these needs, Numaligarh performed           additional plot area, and no changes           stricter environmental requirements.
a thorough cost-benefit analysis with       to the refinery’s existing reformer
input from Topsoe.                          were required, which helped keep the
                                            implementation time and costs at a
                                            minimum.
10    Haldor Topsoe
                 Related technologies
                 Scaling up hydrogen production
                 with hydroprocessing
                 Hydroprocessing is the common name for the units
                 that consume all the hydrogen made in refinery
                 hydrogen plants. Hydrotreating removes sulfur from
                 the oil components, and hydrocracking breaks the
                 heavier hydrocarbons into lighter hydrocarbons in order
                 to optimize the value of the product slate. Topsoe is
                 the leading licensor of all types of hydroprocessing
                 units and holds a complete catalyst portfolio within this
                 area. The main operating cost of these units is the
                 hydrogen. Therefore, knowledge of hydrogen
                 consumption and purity requirements has huge
                 influence on the refinery profitability. The
                 hydroprocessing units can be streamlined to fit a
                 certain hydrogen production. The top of the league
                 catalysts can assure that this flexibility is available
                 from Topsoe.
                 WSA (Wet gas Sulfuric Acid)
                 H2S gas is a byproduct of the hydroprocessing
                 technologies. H2S gas treatment traditionally means
     WSA         production of elemental sulfur by the Claus process,
                 but Topsoe has a smarter way. Around 90% of all sulfur
                 produced in Claus plants is turned into sulfuric acid
                 zooner or later. The Topsoe WSA (Wet gas Sulfuric Acid)
                 technology is developed with the purpose of turning
                 gaseous sulfur compounds into high-quality
                 concentrated sulfuric acid. You can utilize the large
                 amount of superheated high-pressure steam from the
                 WSA unit in other process plants or turn it into
                 electricity to cut your power bill. Ammonia and
                 hydrocarbons in the feed gas are the troublemakers in
                 a Claus unit, which are fully combusted in the WSA
                 process that also deals elegantly with variations in flow
                 and composition of the feed without having to deal
                 with keeping a delicate balance between H2S and SO2.
                 The WSA technology achieves at least the same high
                 sulfur removal efficiency as an advanced Claus unit
                 with tail gas treatment, but does it at a lower
                 installation and operation cost.
                                         Haldor Topsoe Exchange Reformer (HTER)     11
Why partner with
Haldor Topsoe?
The Topsoe advantage lies not just in individual solutions,
but in how our solutions work together
                                               When you partner with Haldor
                                               Topsoe, you partner not only with the
                                               world’s experts in catalysis, surface
                                               science and emissions management.
                                               You also partner with a company that
                                               takes a uniquely holistic approach to
                                               your plant and your business.
                                               When we look at your plant,
                                               we look at the big picture – and
                                               then apply the full breadth of our
                                               expertise to deliver a thoroughly
                                               tailored solution where individual
                                               components work together to
                                               maximize your plant’s performance
                                               and your business success.
Haldor Topsoe is a world leader in catalysis and surface science,
committed to helping our customers achieve optimal performance.
We enable companies to get the most out of their processes and
products, using the least possible energy and resources, in the
most responsible way. We are headquartered in Denmark and do
project development, R&D, engineering, production, and sales &
service across the globe.
                   Get in touch today
                   www.topsoe.com
Haldor Topsoe A/S, cvr 41853816 | CCM | 0269.2019/Rev.0