Methanol is emitted from
Oxygenated Gasoline Storage Tanks. Tank emission information is taken from the
quarterly report file, VOC.xls. All the information below comes from the Tk_calc tab of
that spreadsheet.
E methanol 
Vmet VPmet
 ( Evoc , tpy)  2000
100 VPavg
VPmet was obtained using Antoines equation.
Antoine's coefficients
Methanol is formed as a byproduct in the hydrogen plants. Process literature shows 70
ppm, wt. of methanol in the condensate streams. Assume all methanol is released to air
during the process. From Burton Tredway - ext 1797.
There are two H2 plants. 1 and 2. Condensate streams from both are measured.
methanol formed lb / hr  (condensate lb / hr )  70 / 1000000
methanol formed lb / hr
methanol lb / H 2 lb 
H 2 formed per hour
methanol released Mlb  ( H 2 production MSCF / yr )  (  h 2 , lb / SCF )  (methanol lb / H 2 lb)
data :
condensate formation rate
H2 formation rate
H2 production rate
Controlled (monitored) equipment leaks are calculated via Correlation Equations which
use real monitoring data to calc emissions. Fugitive emission data managment software
(ORR-Leak DAS) helps calculate these emissions. Bev Kiecker is the contact for these
calculations. Speciation data was added to the software for 1996RY, and this data is
located in "Fugitive Speciation in LeakDAS.xls". The results are listed in LEAKDAS99.xls.
The summed results are listed below.
The maintenance fugitives were calculated based on bulk issued amounts of SARA
compounds and mixtures containing SARA compounds for the reporting year. It was
assumed that all bulk amounts issued from the warehouse were actually used. A list of
materials containing SARA compounds (as well as a list of materials that do not contain
SARA compounds) is located in "96KRCMaint.xls". For mixtures containing at least one
SARA listed compound, MSDS information was used to calculate the mass of each
SARA compound present in the mixture. In all cases, estimates were conservatively
based on the upper end of the composition range given in the MSDS. Fugitive emission
rates from maintenance activities were assumed to be directly related to chemical vapor
pressure. A high vapor pressure chemical vaporizes much more quickly in an open space
than a low vapor pressure one, so higher emission rates were assumed for higher vapor
pressure chemicals.
To determine emissions from Maintenance, need to know the amounts of materials
containing SARA reportable compounds that were used this reporting year. Asked Steve
Heiniger (x0583) to write a query in Impac to determine the amount of materials issued this
reporting year. Assume that the amount issued is the same amount used for that reporting
year. Take this electronic data and determine which contain SARA reportable compounds
and which do not. Use data in 99IMPAC.xls which contains information to help make this
determination. Also, if the item was not issued in '99, it may be in KEH's list copied into
99IMPAC.xls in the tab called "KEH Doc for SARA Lab&Maint". If data is not available here,
then check the vendor MSDS's in safety (currently filed in Dewey Goulson's office).