December 2019

Newsfronts
Chementator
Business News

Technical & Practical

Feature Report
Facts at Your Fingertips
Technology Profile
Engineering Practice
Environmental Manager

Equipment & Services

Focus
New Products

Past Issues

Sponsored Content

× COMMENTARY

Pursuing the potential of hydrogen
Hydrogen’s potential for playing a significant role in the global…

IN THE NEWSNEWSFRONTS

Workforce 4.0: The Human Side of Digital Transformation
As chemical process industries (CPI) companies continue to experiment with,…

The Changing Face of Simulation
Easier-to-use features and simplified integration lead to new applications for…

CHEMENTATOR + Show More

Geothermal brine may be a new U.S. source of lithium
Currently the U.S. has only one domestic source of lithium,…

This process may produce lithium from borate process waste
Rio Tinto (London, U.K.; www.riotinto.com) will shortly start up a…

A microbe for making chemicals and biofuels from brown algae
A research team from Pohang University of Science and Technology…

Novel catalyst for transforming polyethylene into lubricants and waxes
Efficient upcycling of post-consumer plastics, such as polyethylene (PE), is…

Solvent chemistry is key for cleaner oil-sands processing
Petroteq Energy Inc. (Sherman Oaks, Calif.; www.petroteq.energy) has achieved continuous…

Electro-swing adsorption separates CO2 from mixed gases at any concentration
Effectively separating carbon dioxide from combustion exhaust or directly from…

Machine learning helps achieve a five-fold boost in formaldehyde yield
Chemistry professor Oliver Trapp and his colleagues at the Ludwig…

Lower-cost engineered composites for transportation infrastructure applications
Engineered cementitious composites (ECCs) are concrete-like materials with exceptional ductility…

Pursuing methanation as a means to recycle CO2
By the end of fiscal 2019, commissioning and continuous operation…

Chementator Briefs
Direct route to PG Dow Inc. (Midland, Mich.; www.dow.com) and…

BUSINESS NEWS

Plant Watch: December 2019
Plant Watch Wacker starts up new silicon-metal production plant in…

TECHNICAL & PRACTICALFEATURE REPORT

Standard ASME B16.5 Flanges: Bolt Tightening and Target Loads
Using the approach outlined here, piping engineers can select the…

Interpreting Normalized Profitability Metrics
Normalized profitability metrics provide a basis for comparing the efficiency…

Storage Tanks: Snapshots of Failures, Damages and Inspections
Lessons learned from past failures provide insight and know-how needed…

FACTS AT YOUR FINGERTIPS

Facts at your Fingertips: Agglomeration Processes
Agglomeration converts fine powder particles into larger ones by introducing…

TECHNOLOGY PROFILE

Technology Profile: Ethylene oxide production from ethylene
This column is based on “Ethylene Oxide Production from Ethylene…

ENGINEERING PRACTICE

Selecting the Right Thermodynamic Models for Process Simulation
Software that enables complex processes to be simulated continues to…

ENVIRONMENTAL MANAGER

How a Waste Treatment Plan Can Improve Your Bottom Line
Although waste is unavoidable in industrial processes, many companies are…

EQUIPMENT & SERVICESFOCUS

Focus on Valves
Safe combustible-dust-explosion isolation Isolation is essential to protect adjoining system…

NEW PRODUCTS + Show More

This power supply has a new IO-Link Communication Module
The Pro 2 line of power-supply units (PSU; photo), with…

Data connectors for Ethernet and Profinet
The new, two-piece M8 circular connectors for data transmission (photo)…

Decentralized field unit for measuring water parameters
The modular Online Analysis System for measuring water quality is…

Software for comprehensive pipeline management
PipePatrol (photo) is a comprehensive suite of software modules for…

New technology enables biogas optimization
The MGP261 is a new Ex-certified inline multigas measurement instrument…

New filtration media adds strength and cleanability
Introduced at Filtech (Cologne, Germany; October 22–24), Sinterflo FMC (photo)…

Direct, in-situ assessment of critical catalyst properties
The new in situ catalyst-characterization system (ICCS; photo) delivers high-performance…

Rugged scales handle logistical tasks
The AGB and AGF range of bench and floor scales…

A fully integrated, loop-powered displacement transmitter
The DT-12x Series of transmitters (photo) are loop-powered displacement transmitters…

Intrinsically safe smartwatch for use in hazardous areas
The new Smart-Ex Watch 01 (photo, p. 31) is said…

See filter status in real time with this software solution
This company offers a solution for precise monitoring of the…

A new volumetric feeder for additive dispensing systems
The new VMF-90D volumetric screw feeder (photo) is an automatic…

AI improves asset monitoring and maintenance planning
The Maximo Asset Monitor (photo) is a new remote-monitoring platform…

High-volume twin-screw feeder delivers precision
The Model TSF twin-screw feeder (photo) is designed for precise…

Highlights Looking Beyond Chemical Compatibility Charts: Matching Plastic and Elastomer Seals with Fluids Selecting the Right Thermodynamic Models for Process Simulation Pursuing the potential of hydrogen Storage Tanks: Snapshots of Failures, Damages and Inspections How a Waste Treatment Plan Can Improve Your Bottom Line

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

Breakthrough Technologies