November 2018

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Facts at Your Fingertips
Technology Profile
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× COMMENTARY

Shifting to EVs
While it may not be obvious to the average driver,…

COVER STORY

FIGURE 1. Effective commissioning should incorporate in-depth real-world tests that evaluate process variabilities and interdependencies

Best Practices in Capital Equipment Commissioning
Ensuring that real-world commissioning tests are properly executed can benefit…

FIGURE 1. Many large capital projects in the CPI put great focus on decreasing overall costs and compressing plot footprints, but they must do so while still considering the proper construction execution sequence

Commissioning and Startup: Increase Certainty Through Advanced Planning
Taking commissioning and startup into consideration during the early design…

IN THE NEWSNEWSFRONTS

Figure 4. MSA offers the X/S Connect app with Bluetooth-enabled fixed gas detectors, allowing users to securely connect their devices to the detectors so they can be quickly configured

MSA

Engineering Challenges? There's a Mobile Application for That
Mobile applications for the CPI simplify process engineering challenges and…

Figure 1. A brewing method based on controlled hydrodynamic cavitation could save energy and time in the brewing process

Brewing Technology: An Old Art Looks Forward
Research and development in the brewing industry is peaking, driven…

CHEMENTATOR + Show More

Bio-based adsorbent material removes PFAS compounds from water
Per- and polyfluoroalkyl substances (PFAS) have been widely used for…

A bi-functional catalyst enables one-step, 'tunable' F-T synthesis of liquid fuels
An integrated catalytic process for the direct, Fischer-Tropsch (F-T) conversion…

Printing 2-D piezoelectric materials for sensors and energy harvesting
A new, inexpensive method to print large-scale sheets of two-dimensional…

A one-step solution for remediating two challenging groundwater contaminants
A research team from the New Jersey Institute of Technology’s…

Thin, organo-ceramic coating improves corrosion and fouling resistance of metal components
A chemical vapor deposition (CVD) process that bonds a silicon-oxide…

Two new catalysts for continuous-flow synthesis
Shu Kobayashi and colleagues at the University of Tokyo (Japan;…

Chementator Briefs
O2 recycling A beta field trial has been successfully completed…

Gas-solid reaction makes efficient solar cells
The research group of Yabing Qi at Okinawa Institute of…

Water-pollutant-removal technology extended to phosphorus
A project has been announced to demonstrate Microvi’s (Hayward, Calif.;…

Another go for underground coal gasification
Leigh Creek Energy (Adelaide, South Australia; www.lcke.com.au) has received final…

BUSINESS NEWS

Plant Watch: November 2018
Plant Watch Covestro to invest €1.5 billion in new, world-scale…

TECHNICAL & PRACTICALFEATURE REPORT

Figure 3. If pressure develops between the disk and the PRV, it will not blow out at the design pressure. A pressure gage can warn if pressure goes above atmospheric

Emerson Automation Solutions

Wireless Monitoring for Pressure Relief Systems
New diagnostic devices can identify when pressure incidents happen, while…

Figure 1. The components of a pressure-reducing regulator include: the set-pressure spring, which is the controlling mechanism; diaphragm, which is the sensing mechanism; seat; poppet, which is the sealing mechanism; body; body plug; inlet and outlet ports; threaded vent; and more

Swagelok

How to Troubleshoot and Maintain Pressure Regulators
Following a five-step process enables better outcomes for fluid system…

FACTS AT YOUR FINGERTIPS

FIGURE 1. A two-wire RTD detects temperature-dependent changes in resistance, but must be corrected for resistance added by the lead wires

Facts at your Fingertips: Temperature Measurement with RTDs
Temperature measurement is critical in many types of process equipment,…

TECHNOLOGY PROFILE

Figure 2. Several production pathways are available for producing butanediol

Technology Profile: Bio-based Butanediol Production
This column is based on “Bio-Butanediol Production from Glucose,” a…

SOLIDS PROCESSING

Combustible Dust Fires and Explosions: Recent Data and Lessons Learned
A review of recent data from the Combustible Dust Incident…

EQUIPMENT & SERVICESFOCUS

Focus on Laboratory Equipment
Take groundwater samples with this device This company recently acquired…

NEW PRODUCTS + Show More

NIR-based technique provides a simpler way to measure moisture
This company has developed an approach to moisture measurement that…

These spray dispensers are adjustable and precise
This company’s new spray dispenser (photo) provides gentle and homogeneous…

Small-footprint drives for laboratory fluid transfer
The new Masterflex L/S variable-speed console drives (photo) sit neatly…

This unit combines impact grinding and air classification
The model CAM 1300 air classifier mill (photo) combines impact…

New low-noise fans are oil-free to prevent contamination risks
The new Direct Drive high-volume, low-speed (HVLS) fan (photo) produces…

New thermowells reduce vibration and fatigue
The Rosemount Twisted Square thermowell (photo) is said to reduce…

These optical flame detectors combine UV and IR sensing
The new FL500 optical flame detector (photo) is performance-approved for…

These flame arrestors decrease leakage and vibration risks
BelGAS FM flame arrestors (photo) stop ignited vapors from traveling…

A new technology for managing seals
This company’s Viewin Technology greatly facilitates seal identification and maintenance…

New series of monitors expands detection for specialty gases
The Pac 6000, 6500, 8000 and 8500 personal single-gas monitors…

Online condition monitoring for turbomachinery
Machine Sentry MSO1 (photo) is a low-cost, high-speed online condition-based-monitoring…

DP transmitters for hard-to-access locations
The Series 629C-RS wet/wet differential pressure (DP) transmitter with remote…

Oil-free air compressors meet emissions standards
This company has released a new fleet of 100% oil-free…

Realtime, easy-access diagnostics for PLCs
ICS Monitoring (photo) is a realtime diagnostics solution for programmable…

SHOW PREVIEWS

Valve World Show Preview
More than 600 exhibitors from around the world will be…

Highlights The Journey to Digitalization Wireless Monitoring for Pressure Relief Systems Combustible Dust Fires and Explosions: Recent Data and Lessons Learned The Use of Ozone in Chemical Process Industries (CPI) Applications Determination of nozzle loads to facilitate the initial pressure vessel design

Comment

High-pressure rupture discs now have extended service life

By Chemical Engineering | September 1, 2018

Rembe

Since this company’s engineers have modified the standard rupture-disc design, its high-pressure rupture discs (photo) have become significantly more durable. The welding seam of the rupture disc is not stressed as usual, in terms of shearing and bending, but only in terms of pressure. Through the geometric separation of the stress spike and the welding seam, the rupture disc is longer-lasting and allows the lowest rupture tolerances of up to±3% at pressures of up to 5,000 bars and temperatures up to 400°C. — Rembe GmbH Safety + Control, Brilon, Germany

www.rembe.de

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