Naphtha cracker of Lonza in Visp  (Picture: Lonza)
Cracker Control

On-Line Process Chromatographs Optimize Fine Chemicals Production

Exact and reliable chemical analysis of feedstocks and products is very important in the manufacture of fine chemicals. Laboratory gas chromatographs are among the techniques traditionally used for this task, but pressure to improve process operations has brought change. Online process gas chromatography now provides significant benefits, as shown on a naphtha cracker.

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HTC-Reactor in ATB's biochar laboratory (Picture: Foltan/ATB)
Bio-refinery

Pyrolysis Waste Water to Become Useful

Carbonization processes such as pyrolysis and hydrothermal carbonization (HTC) expected to fulfil important roles in future bio-refinery concepts. However, until now a major problem is: These processes form waste waters that contain various environmental hazardous substances. Researchers in Potsdam/Germany seem to crack it.

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In the pyrolysis plant, three redundant Himax safety systems are used as ESD, BMS and F&G systems in the compressors, naphtha and ethane furnaces and other process units. Overall, the safety controllers process approximately 2,000 signals. (Picture: Hima)
Safety System Modernisation

Migration with a Vision: How to Update a Whole Refinery in Only Two Weeks

Refinery modernizes safety systems in just two weeks and assures plant availability for the future—In September 2014, the German refinery Heide Refinery used two weeks of planned downtime at its pyrolysis plant to migrate to new safety systems. The technology selection emphasized plant availability and a high level of investment security, while extensive preliminary testing guaranteed a smooth changeover.

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