TY - JOUR
T1 - A nondestructive method to measure residual adsorption capacity of charcoal filters
AU - Sacco, A.
AU - Chung, B.
AU - Aksoy, Y.
PY - 1982/9/1
Y1 - 1982/9/1
N2 - High surface area charcoal bed filters have been used for over a half a century to adsorb undesirable vapors from gas streams. One problem encountered when using these filter beds is that there is presently no simple, reliable, nondestructive method to measure their Residual Adsorption Capacity, RAC. This is particularly critical in situations where harmful vapors are being adsorbed. An investigation has been underway to use pulses of weakly adsorbed gases such as ethane and/or methane to measure RAC. The hypothesis being that these weakly adsorbed gases will “count” unoccupied adsorption sites. In the present study, dimethyl methylphosphonate (DMMP) was used to “irreversibly” occupy available sites to various extents on different filters. The Reduced Retention Time, θ, (the ratio of the adjusted retention time to the space time) and the Resolution (R) between peaks of methane and ethane were found to correlate to RAC under dry and wet (humid) conditions.
AB - High surface area charcoal bed filters have been used for over a half a century to adsorb undesirable vapors from gas streams. One problem encountered when using these filter beds is that there is presently no simple, reliable, nondestructive method to measure their Residual Adsorption Capacity, RAC. This is particularly critical in situations where harmful vapors are being adsorbed. An investigation has been underway to use pulses of weakly adsorbed gases such as ethane and/or methane to measure RAC. The hypothesis being that these weakly adsorbed gases will “count” unoccupied adsorption sites. In the present study, dimethyl methylphosphonate (DMMP) was used to “irreversibly” occupy available sites to various extents on different filters. The Reduced Retention Time, θ, (the ratio of the adjusted retention time to the space time) and the Resolution (R) between peaks of methane and ethane were found to correlate to RAC under dry and wet (humid) conditions.
UR - http://www.scopus.com/inward/record.url?scp=0020415534&partnerID=8YFLogxK
U2 - 10.1080/00986448208911613
DO - 10.1080/00986448208911613
M3 - Article
AN - SCOPUS:0020415534
SN - 0098-6445
VL - 17
SP - 43
EP - 55
JO - Chemical Engineering Communications
JF - Chemical Engineering Communications
IS - 1-6
ER -