I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
Sulfur control Preferential Oxidation Catalysis — a new catalytic solution…
BUSINESS NEWS
Chemical Engineering MagazineBusiness News
Plant Watch Perstorp will construct new plant for sodium formate…
TECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment PDF Automation & Control

Focus on Valves

By Chemical Engineering |

Prev4 of 17Next
Use your ← → (arrow) keys to browse

Rotork

Rotork

Cut VOC losses from tanks by maintaining constant pressure

Minimizing emissions of volatile organic compounds (VOCs) from oil tankers in transit is challenging because of fluctuating ambient conditions experienced during sea voyages. Controlled release of VOCs is often undertaken when the gas pressure in the tank approaches a pre-set threshold. The Vocon Valve and Reporting System (photo) controls the vapor pressure inside oil cargo tanks to minimize and control VOC emissions. The system, which combines a venting control valve operated by an electric process valve actuator, is installed on the bypass line between the inerting gas pipeline and the mast riser. In automatic mode, the actuator modulates the valve position in response to a control signal from a pressure transmitter, to control the vapor pressure in the cargo tanks. It complies with the latest international rules and regulations, and has an advanced reporting system, according to the manufacturer. Its wide ambient operating temperature range (from –20 to 65°C) makes the system versatile in the exposed conditions experienced by oil tankers at sea. — Rotork PLC, Bath, U.K.

www.rotork.com

 

 

 

 

 

Prev4 of 17Next
Use your ← → (arrow) keys to browse

Related Content
Valve World Show Preview
The Valve World Americas Expo and Conference (www.valveworldexpoamericas.com) will take place at the George R. Brown Convention Center in Houston…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Quadruple Sensor Lifetime with a Retractable Housing
Minimizing Explosion Risk Where Other Solutions Cannot
Minimizing Corrosion with Fast, Robust Gas Analysis
Lower Measurement Point Costs with Automatic pH Sensor Cleaning
Reduce the Risk of Corrosion in Fertilizer Production

View More

Live chat by BoldChat