Chemical Engineering
Sustainability November 5, 2024. A nearly universal electrolyte chemistry for safer, longer-lasting batteries. Process for electrolytically converting CO2 to carbon materials to be scaled up. "Frugal" method adsorbs and destroys PFAS with photocatalyst. A low-cost method for bio-based production of acrylic acid.
Pump Sizing and Selection Made Easy - Chemical Engineering
Jan 1, 2018 · The pump curves in Figure 3 illustrate the following pump options to choose. Option 1: 4 × 3 – 13 3,500 rpm. Installed cost of pump and motor: $20,000 for 3,500 rpm. Maintenance cost: 10% of installed cost per year. Motor efficiency: 65% (assumed) Option 2: 4 × 3 – 13 2,850 rpm. Installed cost of pump and motor: $40,000 for 2,850 rpm.
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For over 125 years, Chemical Engineering has provided a timely mix of technical news reporting and practical, expert information on all aspects of the chemical engineering practice.
Facts at your Fingertips: Cyclone Separators - Chemical Engineering
Jul 1, 2020 · Properly designed cyclones can remove nearly every particle in the 20- to 30-µm range. Typical cyclone separators have efficiencies of 70–90%. Gas inlet velocities should be in the range of 100 to 150 ft/s, but may be limited by re-entrainment of dust particles or by unacceptable pressure drop. At the tapered end of the chamber, where the ...
Issues Archive - Chemical Engineering
August 2022. July 2022. June 2022. May 2022. April 2022. March 2022. February 2022. January 2022. Find full 2022 digital issues and downloadable PDFs here.
Solids Drying: Basics and Applications - Chemical Engineering
Apr 1, 2014 · Drying may be defined as the vaporization and removal of water or other liquids from a solution, suspension, or other solid-liquid mixture to form a dry solid. It is a complicated process that involves simultaneous heat and mass transfer, accompanied by physicochemical transformations. Drying occurs as a result of the vaporization of liquid by ...
Treating Boiler Feedwater for Reliable Operation
Sep 1, 2018 · These key elements of internal boiler feedwater (BFW) treatment will help avoid boiler tube failures due to scale and pitting. For many chemical processes, an industrial packaged-type boiler is a critical component for either power generation or for producing steam. In the event that boilers are taken offline due to a failure, the facility may ...
Ethylene Production via Cracking of Ethane-Propane
Nov 1, 2015 · The process shown in Figure 1 is a steam-cracking process for ethylene production from an ethane-propane mixture. The process can be divided into three main parts: cracking and quenching; compression and drying; and separation. Figure 1. This process diagram shows an ethylene-production process via the cracking of an ethane-propane mixture.
The Chemical Engineering Plant Cost Index
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Viscosity: The Basics - Chemical Engineering | Page 1
Aug 1, 2009 · To be brief, viscosity is resistance to flow. For handlers of all materials that flow, either while being processed or in an end-use, it is important to think about the materials’ flow characteristics. The bottom line is to come up with ways to measure viscosity so that you can quantify whether a material will flow the way it needs to.