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Separation Processes

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Commissioning completed for a carbon-capture pilot plant that uses a novel solvent

Commissioning is wrapping up this month for a pilot facility designed to validate the capabilities of a new carbon-capture solvent. The pilot plant was constructed by Koch Modular Process Systems (KMPS; Paramus, N.J.; www.kochmodular.com) as part of Project Enterprise, a…

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Direct-air capture of CO2 via a liquid-based, low-temperature, thermochemical system

With global temperatures likely to rise beyond the 1.5°C target set by climate experts, negative emissions technologies — most notably direct air capture (DAC) — become increasingly important for addressing CO2 already in the atmosphere. A new DAC approach is…

New adsorbent removes radioactive cesium ions from nuclear wastewater

One of the major byproducts of the nuclear fission process used for power generation is 137Cs, a radioactive isotope of Cs that has a half-life of 30 years and is often removed from nuclear-power-plant wastewater via selective adsorption using ion…

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Autonomous control of a distillation column

Eneos Materials Corp. (formerly the elastomers business unit of JSR Corp.; www.eneos.co.jp) and Yokogawa Electric Corp. (both Tokyo, Japan; www.yokogawa.com) recently reached an agreement to officially adopt Yokogawa’s autonomous-control artificial intelligence (AI) technology for use at an Eneos Materials chemical…

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Lithium metal for next-generation batteries produced from Li2CO3 in pilot facility

In May, Li-Metal Corp. (Markham, Ont.; www.li-metal.com) announced the production of refined lithium metal from lithium carbonate salt using a new electrolysis process at the company’s pilot facility in Ontario, Canada. The lithium metal produced at the pilot plant is…

Photochemistry boosts the yield of chiral compounds

Isolation and purification of pure, active enantiomers is important in the development of active pharmaceutical ingredients and drug products. However, recovering the desired optical isomer from a racemic mixture means half of the chemical produced — the undesired isomer —…

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Filtration Considerations for CPI Facilities

Numerous factors are taken into account when designing a filtration system, including technical, logistical and safety considerations Filtration is an essential step in the production and processing of many materials in the chemical process industries (CPI). Beyond the efficacy of…

PVDF Bubble Caps for Distillation Columns

Polymer components in column trays can avoid issues associated with corrosion of metal equipment Gujarat Alkalies & Chemicals Ltd. (GACL) — a major chemical producer in Gujarat state in western India — was facing corrosion challenges with its distillation columns.…

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The Selection and Design of Fixed-Bed, Axial-Flow Vessel Internals

Follow these key considerations when deciding which internals to use in fixed-bed, axial-flow vessels Fixed-bed, axial-flow vessel internals are installed in natural gas plants, petroleum refineries, petrochemical plants, chemical plants and industrial gas facilities. Thermal-swing gas and liquid dehydrators, treaters…

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World’s largest double, re-slurry crystallization unit starts up in China

Last month, the world’s largest double re-slurry para-xylene crystallization unit was started as part of Shenghong Refining and Chemicals Co. Ltd.’s integrated refining/chemicals project in Lianyungang, Jiangsu Province, China. Double re-slurry crystallization takes advantage of freezing-point differences among the three…