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{longname} Q487. Under onshore natural gas processing where would you report vent emissions? We have a membrane plant (sweet gas so no acid gas removal) where we remove CO2 and vent. Should this be reported under flare as unlit? {longname} |
A487.
...
If
...
a
...
membrane
...
unit
...
is
...
used
...
to
...
remove
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CO2
...
from
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natural
...
gas
...
containing
...
concentrations
...
of
...
hydrogen
...
sulfide
...
or
...
carbon
...
dioxide
...
that
...
exceed
...
the
...
concentrations
...
specified
...
for
...
commercially
...
saleable
...
nature
...
gas,
...
then
...
emissions
...
must
...
be
...
calculated
...
and
...
reported
...
as
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specified
...
in
...
§98.233
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(d),
...
as
...
this
...
process
...
meets
...
the
...
definition
...
of
...
acid
...
gas
...
removal
...
unit
...
in
...
§98.238.
...
Please
...
see
...
EPA-HQ-OAR-2009-0923-1298-18
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in
...
the
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Response
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To
...
Comments
...
(1719
...
-
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1720)
...
http://www.epa.gov/ghgreporting/documents/pdf/2010/Subpart-W_RTC_part2.pdf
...
for
...
further
...
details
...
on
...
the
...
definitions
...
of
...
sweet
...
and
...
sour
...
gas.
...
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{info}
Source: EPA, Frequently Asked Questions, Petroleum and Natural Gas Systems, July 2011, [http://www.epa.gov/climatechange/emissions/downloads11/documents/Subpart-W-additional-faq.pdf]. Answer updated to include H2S and exceeds language
Approval / Publishing History: Version 3, Revised to update URLs per direction from K. Sibold, 9/27/2012
Expiration: none
Relevant Subpart: W, Onshore Gas Processing
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