Sulfuric Acid Alkylation Unit

Overview

Customer had two significantly low spots & six moderately low sports on Sulfuric Acid Alkylation Unit. Was sending UT technician to check weekly status of pitting. Installed sensors to monitor for pit growth and to ensure unit could last until planned outage 18 months away. Accelerated sulfuric acid (low PH) excursions & not enough caustic neutralization due to pump change out.

Application

Sulfuric Acid Alkylation ~100F

  • 36” Sch. 40 … all nominal wall thickness .312”
  • Low spots ranging from .230” to .107”

Product Used

smartPIMS Cellular

  • smartPIMS LT Cellular w/ 8 temporary dual el. probes
  • Monitoring interval: 1 reading/12 hrs, trans/24 hrs
  • DSI clamped to scaffolding which was “temporarily permanent”

Outcome

  • Approximately cost 2 NDT inspections to justify a years worth of continuous monitoring & access to more accurate and timely data

Share this post

Share on linkedin
Share on print
Share on email

Jeff Anderson: Houston – we have a problem

In 2010, the largest offshore oil spill in marine history occurred along the Gulf of Mexico. The economic and ecological costs were devastating. Before becoming the general manager at SNI, Jeff played a critical role in developing a transducer to scan the cracked pipe that caused the Deepwater Horizon Oil Spill.

Read More »

Jim Shimp: Flying towards a safer future

For a second time, the fan blade on a commercial airplane had disconnected because of a failure in the dovetail. Jim Shimp relied on his decades of experience to design and build a transducer to inspect all of the dovetails for these commercial airplanes.

Read More »

Jim Barshinger: A diamond is a Ph.D.’s best friend

With the high value of certain gemstones, they are prone to be stolen and counterfeited. By being fingerprinted, expensive gems can be identified and distinguished from fakes. Jim Barshinger took a standard transducer and turned it into an ultrasonic gem fingerprinting system.

Read More »
Sensor Networks, Inc.