Determining carbon number distribution of monocyclo paraffin(s) in reforming - using flexible system of variable calibrated and corrected data

摘要

Determn. of carbon number distribution of charging stock and reaction prods. of a reforming process using mass spectrometry is claimed. A flexible system of variable calibrated and corrected data is used to determine carbon number distribution of paraffins (P) and monocycloparaffins (MCP). Distribution of P and MCP is calculated between the molecular peak sensitivity and the degree of purity of the prod. or prod. stream according to molecular peak sensitivity = f(degree of purity) - 6C-13C for P; MCP. Calculation of interference-free molecular peak intensities is carried out by intensity of pseudomolecular ions = f(degree of purity): 7-11C by P and 8-11C by MCP and are used as a standard for the degree of purity of a prod. stream or charging stock, whose wt.pts. of aromatics is established. Carbon number distribution is determined by constant factors. ADVANTAGE - Direct control of evaluating paraffinic starting components partic. aromatic prods. using analytical data of Carbon number distribution of paraffins, monocycloparaffins and aromatics is possible when using crude gasoline fractions of b.pt. 470K.