Acidity in vinyl chloride can be quantified by measurement of hydrogen chloride (HCl) levels, serving as a quality measure and preventing corrosion of the storage and handling equipment. For this reason it is recommended to monitor and control HCl by means of AppliTek’s UPA Universal Process Analyzer technology.
The purpose of determining hydrogen chloride in liquid EDC (ethylene dichloride) is to protect EDC against corrosion by HCl during transport or storage. For all other analytical solutions in the chlorination process, please browse the On-line Analyzers Suite under Products & Solutions.
Various pollutants form in the cement manufacturing process, especially when alternative fuels and waste-derived fuels are used. Typically a cement kiln using these fuels is a required to monitor hydrogen chloride (HCl). Gasmet CEM II is EN 15267-3 approved for HCl measurement in 0 … 15 mg/Nm3 range.High process temperatures result in generation of more nitrogen oxides (NOx) than in typical municipal waste incineration.
The consumption of scrubbing material in a scrubber is related to the mass flow of acid gases. Hydrogen chloride (HCl) and sulphur dioxide (SO2) are the major acid gases in an incinerator. By measuring the mass flow of SO2 and HCl in the raw gas going into the scrubber, it is possible to calculate the required quantity of scrubbing material.
The United States Environmental Protection Agency (EPA) has two stack testing methods for FTIR gas analyzers. Method 320 is an FTIR method for measuring wide range of organic and inorganic pollutants. Method 321 is a specific version for measuring hydrogen chloride HCl at cement kilns producing Portland cement. These methods define a quality assurance and control processes for verifying the accuracy of the results. The requirements for analytical equipment and software are defined on 40 CFR Part 60 Appendix B...