June 2004

Extra Report: Laboratory and Online Analyzers

Automate halogen and sulfur detection in hydrocarbons

New instrumentation methodology makes this analysis quick and simple

Brooks, R., Manahan, M., Cosa Intruments Corp.; Chassaniol, K., Dionex Corp

Combustion ion chromatography (CIC) is a new analytical technique combining gas combustion with ion chromatography (IC). It is used to determine halide and sulfur content in coal, crude oil, naphtha, alkylates, liquefied petroleum gas (LPG) and related materials. Many refinery intermediates and feedstocks contain organic fluoride (F?) and chloride (Cl?) species. Under certain conditions present in refinery processes, organic halides will break down forming hydrofluoric (HF) or hydrochloric (HCL) acid that may lead to catalyst damage and severe corrosion within the process. Instrument operation. The automatic quick furnace (AQF) is a quartz tube oven, which burns the sample and

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