Personal menu

Search

Filters

Products tagged with 'vapor corrosion inhibitors (vcis)'

View as

Sort by

Display per page

Picture for Determining Migration of Vapor Corrosion Inhibitions Within Sandpad

Available for download

Determining Migration of Vapor Corrosion Inhibitions Within Sandpad

Product Number: 51323-19365-SG

Author: Pavan K. Shukla, Roderick E. Fuentes, Andrew Nordquist, Bruce J. Wiersma, Laurie Perry

Publication Date: 2023

$20.00

Soil-side corrosion of the bottom plates of aboveground storage tanks is one of the main reasons for the tank bottom failures. Literature data and experimental work have shown that soil-side corrosion rates could reach as high as 50-100 mpy, indicating that soil-side corrosion could cause the tank-bottom failure in relative short periods, i.e., less than five years after initial installation or repairs. In addition, a recent study has shown that cathodic protection (CP) systems’ effectiveness could be questionable in up to 40 percent of the tanks.

Picture for Effectiveness of Vapor Corrosion Inhibitors under Bacterial Activity for Aboveground Storage Tank Application

Available for download

Effectiveness of Vapor Corrosion Inhibitors under Bacterial Activity for Aboveground Storage Tank Application

Product Number: 51324-20789-SG

Author: Pavan K. Shukla; Roderick E. Fuentes; Andrew Nordquist; Bruce J. Wiersma; Ingrid Pederson

Publication Date: 2024

$40.00

Bacterial activity is known to influence corrosion and can result in increasing soil-side corrosion of the aboveground storage tanks (ASTs) floor plates. Association for Materials Protection and Performance (AMPP) defines this phenomenon as Microbiologically Influenced Corrosion (MIC). It has been hypothesized that vapor corrosion inhibitors (VCIs) can not only function in presence of bacterial activity but can also function as biocides. Experiments were conducted to study the effect of bacterial activity on corrosion in the sand pad conditions and effect of VCIs in mitigating MIC. Various bacteria cultures were grown using commercially available culture media, and coupon exposure tests were performed with field sand mixed with the culture media. To this end, control and VCI-dosed electrolytes were prepared using the field sand plus bacteria cultures. Pre- and post-test bacteria concentration estimation and measurements, respectively, in the VCI-dosed electrolytes indicated that VCIs do not function as biocides, however, VCIs are highly effective for mitigating corrosion in presence of bacterial activity.

Recently viewed

Popular tags

View all