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FORD BACON & DAVIS
has had considerable experience in design, engineering and construction of all
commercially popular amines including MEA, DEA, TEA, MDEA, and DGA. Diglycolamine (DGA)
has a unique set of properties that lends to applications requiring some removal of COS.
The bulk of these applications are related to the sweetening of light liquid hydrocarbons.
FB&D's design experience with this material has been primarily with liquid
contractors.
We have also been associated with the units at Texaco's Convent, Louisiana and Anacortes,
Washngton refineries which use DGA. In both of those refineries, FB&D designed the
downstream sulfur recovery units and worked with Texaco in the feed gas preparation for
the DGA units for suitability with the sulfur recovery units.
Another application where we have applied DGA is in the Malaprop technology. This DGA
based light hydrocarbon liquid sweetening system has received considerable industry
attention in the recent past. FB&D used this technology in the desgn of sweetening
units for Exxon and Pacific Offshore Pipeline Company, both at Las Flores Canyon,
California.
Following are descriptions of FB&D's Amine Treating and Sour Water Stripping
capabilities:
Amine Treating
FB&D has the capability to custom design amine treating systems used in refineries for
fuel gas and liquid sweetening. Each amine treating system is tailored to meet the
specific needs of the client. We provide conventional amine solvents such as MEA or DEA,
or selective amines such as MDEA. Where applicable, other acid gas treating units such as
Selexol, Sulfinol and Benfield are available.
Sour Water Stripping
We have designed and built many plants that incorporate sour water strippers to remove
hydrogen sulfide and ammonia from waste water, rendering it suitable for discharge.
Processing of the off-gas from the sour water stripper is completed in the sulfur recovery
unit, but care must be exercised in order to eliminate problems associated with processing
a stream which contains both ammonia and hydrogen sulfide. Our years of experience in
design of both sour water strippers and sulfur recovery units assure an integrated
facility that provides trouble free operation.
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