The Topsøe S-200 converter The three catalyst beds offer a higher conversion of ammonia
The Topsøe S-200 ammonia converter is a two-bed radial flow or alternatively a reduced catalyst volume compared to the
converter with indirect cooling between the catalyst beds. Since S-200 converter, thus ensuring increased production or lower
the introduction of the S-200 ammonia converter in 1976, this investment cost.
converter type has been used in more ammonia plants than any
other converter design. The S-300 basket design has been well received by the industry,
and since the first reference for the S-300 basket was sold in
Two versions of the S-200 converter are available: The first has 1999, more than 30 plant owners have selected the S-300
a built-in-feed-effluent heat exchanger (lower heat exchanger) basket technology.
below the second catalyst bed allowing the heat of the reaction
to be used for preheating the boiler feed water downstream the The Topsøe S-50 converter
ammonia converter. The second version is designed without The S-50 converter is a single bed radial flow converter, which
a lower heat exchanger, meaning that the outlet gas from the is added downstream of the main converter to increase the
second bed will go directly to a boiler for production of high- ammonia conversion, and at the same time to improve the
pressure steam. steam generation. By having two converters, the heat of reaction
after the last bed in the first converter can be utilised for boiling
The Topsøe S-300 converter or superheating of HP steam. The two converter configurations
Topsøe’s S-300 converter is the newest development in Topsøe’s can be used to close the overall plant steam balance if the waste
ammonia converter portfolio and the recommended converter heat available for boiler feed water preheat and boiling of steam
selection for all new plants. is not in balance.
Less makes more – producing ammonia
1958: 3,3 GJ to produce 2000 tonnes ammonia pr. day
2010: 1,7 GJ to produce 2000 tonnes ammonia pr. day
1.1 MM ton reduction in CO2 emission pr. year
It takes energy to produce ammonia. With more efficient Topsøe catalysts and processes, we have reduced
the energy required to produce 1 ton of ammonia with 50%, which also means that we have reduced the CO2
emissions substantially.
Committed to a better future
The Topsøe approach to quality Continued improvement
Each ammonia process scheme is custom-designed based on Extensive collaboration between Topsøe’s engineering
detailed technical reviews and dialogue with our clients to ensure disciplines, Research and Development and industrial feedback
an optimal design to meet or exceed the required performance ensures fast implementation of new ideas and design features
and specifications. for constant improvement of our technology.
Topsøe’s product portfolio includes catalyst, licensing of We offer our clients a wide range of services through
technology, engineering of processing units and technical individualised service agreements. Topsøe has at its disposal a
service. Proprietary knowledge in these areas makes Topsøe a full range of resources to diagnose the most complex problems.
valuable business partner for our clients. Combined with our skilled and experienced process, mechanical
and instrument engineering departments, this forms the basis for
our advisory services and operational assistance.
Topsøe’s unique business model integrates all aspects from
fundamental knowledge to practical implementation to achieve
optimum industrial efficiency. By choosing Topsøe’s ammonia
technology, clients will have a competent and reliable partner for
today and for the future.
Corporate PR 08.2010.2
Haldor Topsøe A/S - Nymøllevej 55 - 2800 Kgs. Lyngby - Denmark
Tel. +45 4527 2000 - Fax. +45 4527 2999 - www.topsoe.com
The information and recommendations have been prepared by Topsøe specialists having a
thorough knowledge of the catalysts. However, any operation instructions should be considered to
be of a general nature and we cannot assume any liability for upsets or damage of the customer’s
plants or personnel. Nothing herein is to be construed as recommending any practice or any
product in violation of any patent, law or regulation.
