MODEC, Inc., has commissioned a
UOP Separex membrane system for processing
natural gas on a new floating production, storage and
offloading (FPSO) vessel. The FPSO is using the
Honeywell UOP Separex membrane system and
adsorbents to remove carbon dioxide and water from 5
million standard m3/day of natural gas from the Lula
oil field off the coast of Brazil.
The FPSO was commissioned in July 2011. A second FPSO, still
in construction and also using UOP
Separex technology, is expected to be
commissioned in September 2012.
The Lula oil field is said to contain the largest oil
discovery in the Western Hemisphere in the last 30 years and is
believed to contain 8.3 billion bbl of oil and natural gas. The
field is operated by Petrobras in partnership
with BG and Galp.
Honeywells UOP Separex technology upgrades natural gas
streams by removing carbon dioxide and water vapor.
These contaminants must be removed to meet the quality
standards specified by pipeline transmission and distribution
companies, as well as end users of the natural gas.
Haldor Topsøe has signed an
agreement with Petrobras for the supply of
critical equipment and materials for two SNOX plants. The
plants will be installed at the new RNEST grassroots refinery in Pernambuco, Brazil. The
supply covers internals for 80 wet-gas sulfuric-acid (WSA)
condensers for condensation of sulfuric acid, eight units for
acid mist control and a complete acid system.
In addition to treating the boiler flue gases, the SNOX
plants will also treat Claus plant tail gases, amine gases
containing hydrogen sulfide and sour-water stripper (SWS) gases
containing ammonia. These SNOX plants are designed for the
possible elimination of the Claus plants, which then means that
all the refinerys sulfur compounds are
converted into sulfuric acid.
The two SNOX plants will be installed in parallel and will
each treat up to 650,000 Nm3/h of flue gas while
producing up to 750 metric tpd of sulfuric acid. In addition to
producing sulfuric acid, the SNOX plants will also export up to
100 ton/hour of high-pressure steam to the refinery steam grid.
The contract for basic engineering was signed with Petrobras
earlier and has already been executed. The supply of equipment
will take place during the coming 16 months, and startup of the
SNOX plants is planned for 2013. HP