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Upgrading organic wastewater into fuel feedstocks

Although wastewater streams with high organic content — such as those from breweries and dairy facilities — can be difficult to treat and expensive to dispose of, there is potential to valorize their carbon content with the right process. Based…

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Tower Doctor: The Case of the Lying Gamma Scan

Henry Kister shares lessons learned from troubleshooting distillation towers This conversation started in a course I was presenting in Sydney, Australia. I was about 15 minutes into my presentation when a delegate from a major petroleum refinery stopped me. “How…

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Chementator Briefs: December 2024

Sustainable SMR In the pursuit of lowering greenhouse gas emissions, hydrogen has gained much attention as a potentially “clean” energy source. Typically, hydrogen is produced by steam methane reforming (SMR), a process which itself produces greenhouse gases. Efforts to lower…

Cost Engineering with Previously Owned Process Equipment

This article made available to you by: Previously used process equipment can offer significant cost advantages in capital construction projects, but there are important questions to consider before pursuing pre-owned equipment Many misconceptions persist in the marketplace about secondhand equipment.…

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Modern Level-Measurement Technologies for CPI Applications

Advanced level measurement devices enhanced with intelligence solve CPI challenges Chemical processes often require handling media that is corrosive, flammable, explosive or toxic with wide ranges in temperature and pressure and characteristics that include steam, dust, foam, turbulence and condensation.…

Electrochemistry and much more

A couple of years ago on Chemical Engineering’s 120th anniversary, I looked back at the history of this publication and at that time, I wrote: “In September of 1902, the first issue of Electrochemical Industry was published to serve those…

Focus: Packaging

This packaging film is water soluble EcoSol® is a PVOH (polyvinyl alcohol) film (photo) that dissolves in water in minutes. It can be made into bags, pouches and sachets of many different sizes to create an efficient delivery system for…

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Methods for Conceptual Capital-Cost Estimation

Conceptual capital-cost estimates are important for assessing the economic viability of proposed projects, but their usefulness depends on understanding how to appropriately apply the estimates Capital cost estimates are a crucial step in order to make prudent decisions regarding any…

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Upcycling gypsum to sulfuric acid in a zero-liquid-discharge demonstration plant

A new demonstration plant is upcycling gypsum (calcium sulfate) — a material that is typically challenging to dispose of — at a metal-refining site using a process that combines salt-splitting electrolysis, caustic direct-air capture (DAC) and mineralization. Travertine Technologies, Inc.…

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Plant Watch: December 2024

Plant Watch Evonik breaks ground on specialty-amine production plant in Nanjing November 11, 2024 — Evonik Industries AG (Essen, Germany; www.evonik.com) has broken ground on its plant expansion for specialty amines in Nanjing, China. The Nanjing plant specializes in producing…