Mobile Navigation

Chemical Engineering

Expanding access to real-time monitoring technology for polymer reactions

A recently announced business collaboration between Fluence Analytics (Houston; www.fluenceanalytics.com) and Yokogawa Corp. (Tokyo, Japan; www.yokogawa.com) will significantly expand the availability of the latest generation of Fluence’s technology for continuous, real-time monitoring of polymerization processes. Under the agreement, the two…

Membrane productivity springs forward with new degradation-control method

The ability to precisely control the molecular structure of polymer membranes could expand their use in challenging separations, such as the purification of xylene isomers. Using highly selective membranes that can be operated at ambient conditions to separate such hydrocarbons…

Operation begins at the world’s largest direct air capture, CO2-storage plant

Last month, Climeworks (Zurich, Switzerland; www.climeworks.com) started operations of Orca, said to be the world’s first and largest climate-positive direct air capture (DAC) and storage plant. Located in Hellisheiði, Iceland, the Orca plant has a capturing capacity of 4,000 ton/yr…

Integration of CO2 direct air capture and alcohol-to-jet fuels manufacturing

A feasibility study is underway for the world’s first commercial facility that integrates direct air capture (DAC) of atmospheric carbon dioxide with gas fermentation of CO2 and production of aviation fuels. LanzaTech (Chicago, Ill.; www.lanzatech.com) and Carbon Engineering (Squamish, B.C.;…

Safer, more sustainable control of runaway polymerization

Runaway polymerizations of acrylic monomers can lead to catastrophic fires and explosions in production plants and storage terminals, as well as during transportation. Special chemical products called shortstop inhibitors are used to minimize the likelihood of runaway polymerization reactions. A…

Sanitize, Analyze and Optimize Bioprocessing Operations

Better designs and improved monitoring and control technologies lead to higher efficiencies While bioprocessing can be challenging due to the sanitation requirements and exacting processes, new technologies are allowing bioprocessors to more easily sanitize, analyze and optimize their processes in…

Facts At Your Fingertips: Design Considerations for Pneumatic Conveying

Attention to the design of bulk-solids pneumatic-conveying pipelines can help avoid conveying-system problems, such as low conveying rates, plugging, excessive wear-and-tear in the conveying line, high conveying-system pressure drop, product breakage, fines generation and product cross-contamination. This one-page reference provides…

Technology Profile: Production of Linear Alpha Olefins

Linear alpha olefins (LAOs) are hydrocarbons with the chemical formula CnH2n, characterized by linear chains and one double bond at the alpha position (Figure 1). Such hydrocarbons are important chemical intermediates, widely used in several industrial and consumer products according…

Bolt-Load Considerations Associated with ‘Hot Bolting’

In some situations, it might be necessary to remove or replace a bolt during operation. This article shows how to determine the proper bolt load to prevent leaks Bolted flange joints (Figure 1) are part of pressure vessel and piping…

Mitsubishi Gas Chemical to expand meta-xylenediamine capacity in Europe

Mitsubishi Gas Chemical Company, Inc. (MGC; Tokyo) has announced the expansion of Meta-xylenediamine (MXDA) production in Europe. MGC is expanding its production capacity of MXDA to meet the market growth in the epoxy, polyamide and isocyanate sector. MGC will be…