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How to develop calibration curves for fuel gas. C. Dean and D. Stevenson. Hydrocarbon Processing, September 1994, 73(9), 97--99.

Legislation on atmospheric pollution now reduces the allowable concentration of sulphur in refinery fuel gases from 800 to 40 ppm. This restriction is imposed by the Air Quality Management District (AQMD) of Southern California. The development of on-line analysers to measure sulphur is discussed. Permeation tubes are used for passivation and calibration of gas samples. The technique involves passing the gas at a controlled rate through two polymer layers, and the development of multi-point calibration curves is described. The AQMD is developing policies for Californian refineries using on-line analysers to measure sulphur emissions. They may accept the use of permeation tubes as part of their reference method.

Abstract details

Journal title: Hydrocarbon Processing

Keywords: Analysis and Testing

Subjects: Laboratory Technology, Energy efficiency, Environmental protection, Protection of ambient air and climate, Management and commerce, Measurement, testing and control, Quality assurance and control, Law and Legal practice, Refining, Energy consumption, Waste recycling and disposal, Oil and gas, Oil, Air quality