Picarro Drive-By Emissions Testing of Refineries in New Orleans and Paper Mills in Mississippi...
-
Upload
picarro -
Category
Technology
-
view
1.095 -
download
1
description
Transcript of Picarro Drive-By Emissions Testing of Refineries in New Orleans and Paper Mills in Mississippi...
2
Methodology
• Picarro CRDS CH4 & H2S instrument– ppb resolution for
both gases in just a few seconds
– Accurate, robust, and easy-to-deploy
• High resolution GPS• Batteries for mobile
operation
Gas snorkelGPS antenna
batteriesPicarro CRDS
Norco Refinery Area25 Jan 2010
4
Local meteorology
• Weather station near to the Valero & Shell refineries
5
Looking into the wind
• Plume visible in close, mid-distance, and long distance transects
• Most distant transect is almost 6 miles away!
• Highest peaks are 1.5 ppmv above baseline
6
Leak detection near Narco
• There is a sign right here that says “buried high pressure natural gas pipeline”
• Peaks are very high (several ppm of CH4)
wind
Chalmette Refinery Area25 Jan 2010
8
Chalmette area
• No nearby weather stations, used this one
9
Chamette Refining
wind
10
Chalmette Refining, cont’d
• Near and far transects of the Chalmette Refining plume
• Peaks are 400 ppb above baseline levels
11
Murphy Oil Refinery (looking downwind)
• Peaks are 1 ppmv above baseline levels
12
Old Paris Road Landfill
13
Two Landfills
2 miles
Unknown source
Bogalusa Linerboard Mill26 Jan 2010
15
Local Meteorology
16
Temple Inland Mill, Bogalusa, LA
• Manufactures linerboard – unbleached kraft
paperboard used for the flat facing material in corrugated container board (i.e., cardboard box)
• Capacity 770,000 kg / year
• Information courtesy of www.cpbis.gatech.edu
17
Hydrogen sulfide measurements in Bogalusa
• Image facing ENE (i.e., ~ downwind)
• Hydrogen sulfide peaks are about 35 ppb high
• Measurements made from 11:15 – 12:00
18
methane measurements in Bogalusa
• Very sharp, very high peaks of methane– Highest peaks are 2
ppm above background level
• Unknown source(s), both inside the Temple Inland fenceline, and outside
New Augusta Market Pulp Mill26 Jan 2010
20
Local Meteorology
Georgia Pacific Pulp mill
21
Georgia Pacific Market Pulp Mill
• Manufactures market pulp– Pulp produced at one location, to
be sold and used at another location to make paper or board; includes bleached paper-grade chemical pulp, deinked (recycled) market pulp, dissolving pulp, cotton linter pulp
• Capacity 550,000 kg / year• Information courtesy of
www.cpbis.gatech.edu
22
Hydrogen sulfide measurements in New Augusta
• Image facing E (i.e., ~ downwind)
• Hydrogen sulfide peaks are about 20 ppb high
• Stationary data collected at arrow locations
23
methane measurements in New Augusta
• Source of methane near south end of mill
• Peaks are 350 ppb above baseline
Supplemental Slide
25
Stationary Plume – methane / H2S midfield plume analysis – New Augusta mill
Methane appears to have a sharp secondary spike