Becht Engineering Blog

In this section of the site contributing authors submit interesting articles relating to the various services, industries and research & development efforts of Becht Engineering.

Becht Engineering has senior process specialists covering all refining and many petrochemical and chemical processes. These include alkylation (HF and sulfuric), aromatics recovery and purification, olefins production and polymer feed pretreatment, catalytic cracking, delayed coking, fluid coking, flexicoking, gas treating, hydrotreating,...

Becht Engineering has senior process specialists covering all refining and many petrochemical and chemical processes. These include alkylation (HF and sulfuric), aromatics recovery and purification, olefins production and polymer feed pretreatment, catalytic cracking, delayed coking, fluid coking, flexicoking, gas treating, hydrotreating, hydrocracking, reforming including CCR, lubes, sulfur recovery, sour water treating, product and water treatment.

Becht also has specialists in the chemical engineering technology disciplines such as crude oil characterization, mixing, heat transfer, fractionation and separations.

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Demister Pads—A simple device until they don’t work

Demister Pads—A simple device until they don’t work
A demister pad is similar to an air filter except instead of removing dust particles from a stream of air for example, it removes micron-size liquid particles from a liquid/vapor stream often found in many industrial processes. An air filter prevents dust particles from entering downstream equipment; similarly a demister prevents liquid droplets from entering downstream equipment where they may affect operation or cause damage. In general, a duty specification is prepared by the process designer and given to demister vendors to recommend a demister that meets the duty requirements. Or today, knowing the required duty you can select a demister from the vendor's online catalog. The demister is installed, performs as intended and is never heard about again. On occasion, problems arise as the case in which Bob Fiocco, a Becht Sr. Advisor, provided technical support to a refining client on demister design and selection. An existing demister installed in...
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