Refrigerant Replacement Revs Up

Switching to more environmentally friendly materials poses tradeoffs

Seán Ottewell, Editor at Large
260 kw chillers mn

Regulatory pressures are forcing the phase-out of many widely used refrigeration gases and their replacement with more environmentally friendly alternatives. For example, the U.S. Environmental Protection Agency (EPA) ruled in October that domestic production of R22 (chlorodifluoromethane) should end within five years. So the industry is turning to alternatives such as ammonia, carbon dioxide and a range of hydrocarbons with low ozone depletion potential (ODP) and low global warming potential (GWP). Such hydrocarbons include: R1270 (refrigerant-grade propylene), R290 (propane), R600 (butane) and R600a (isobutene), together with raft of blends that emulate the performance…

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U.S. Chemicals: The Luster Returns

Production should grow moderately in 2015 and for the next several years.

By Thomas Kevin Swift, American Chemistry Council

After a promising start, the global economy faltered in 2014 because of heightened geopolitical uncertainty, recessions in Brazil, Japan and many European nations, as well as slowdowns in China, some countries in the European Union and elsewhere. So, the manufacturing sector, which represents the…

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Editor's Take

According to our January cover story, production should grow moderately in 2015 and for the next several years. Read the 2015 outlook now.

Traci Purdum, Senior Digital Editor
tpurdum@putman.net

Most Recent

  • Refrigerant Replacement Revs Up

    By Seán Ottewell, Editor at Large

    Regulatory pressures are forcing the phase-out of many widely used refrigeration gases and their replacement with more environmentally friendly alternatives. For example, the U.S. Environmental Protection Agency (EPA) ruled in October that domestic production of R22 (chlorodifluoromethane) should…

    Full Story
  • Pharmaceutical Plant Simplifies Reactor Monitoring

    By Rebecca Dettloff, SensoTech, and Holger Müller, SchuF Chemieventile Vertrieb

    The need for process analytical technology (PAT) to optimize pharmaceutical and fine chemical production processes has increased steadily in recent years. Such technology enables real-time monitoring of reactions, providing immediate data on critical process-control parameters. If problems arise…

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    By Ven V. Venkatesan, Energy Columnist

    In most chemical processing plants the primary objectives of wastewater treatment plants (WTPs) are to meet regulatory requirements and protect public health. Rising energy costs are placing a greater financial burden on wastewater treatment and discharge. Improving energy efficiency at WTPs could…

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  • EPA Expands TSCA Rule

    By Lynn Bergeson, regulatory editor

    On December 29, 2014, the U.S. Environmental Protection Agency (EPA) published a final rule signaling renewed interest in asserting Toxic Substances Control Act (TSCA) jurisdiction over finished goods. The final rule adds nine benzidine-based chemical substances to the existing significant new use…

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  • Swedish Firm Invests in Bioplastics

    By Seán Ottewell, Editor at Large

    Swedish company Perstorp, Malmo, has announced continuing investment in its ε-polycaprolactones (PCL) technology, which it markets under the Capa brand. The company says this is to cope with its forecast of a 20% growth per year for the foreseeable future in the world bioplastics market. Among…

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