Naphtha properties, hydrotreating

Properties of the naphthas produced from the syncrudes in the above tests are shown in Table V. Dinaphthenes are found in the 300-350°F naphtha and, surprisingly, in the 250-300°F naphtha. High levels of these compounds can make coal-derived naphthas difficult to reform. ( 9) A combination gas chromato-graphic-mass spectrometric (GC-MS) analysis of the 250-300°F naphtha from hydrotreated Illinois H-Coal found that the dinaphthenes are 8-carbon atom compounds (1.8% octahydropenta-lene) and 9-carbon atom compounds (0.7% bicyclo 3.3.1 nonane, 0.4% methyloctahydropentalene, 1.0% octahydroindenes, and 2.6% unidentified compounds) These dinaphthenes should not yield naphthalene when reformed. If the initial point of the jet fuel is 300°F or less, the 300°F " naphtha should be easy to reform. 

Naphtha, heavy hydrotreated. See Naphtha, hydrotreated heavy Naphtha, hydrodesulfurized heavy CAS 64742-82-1 EINECS/ELINCS 265-185-4 Synonyms High flash white spirit Hydrodesulfurized heavy naphtha Hydrodesulfurized naphtha, heavy Naphtha (petroleum), hydrodesulfurized heavy Petroleum naphtha, hydrodesulfurized heavy White spirits, hydrodesulfurized White spirit. White spirit, high flash Classification Petroleum distillate Definition Complex combination of hydrocarbons obtained from a catalytic hydrodesulfurization process mixt. of aliphatic and aromatic hydrocarbons, predominantly C7-12 Properties B.p. 90-230 C Uses Solvent... 

Synonyms Heavy hydrotreated naphtha (petroleum) Hydrotreated heavy naphtha Naphtha, heavy hydrotreated Naphtha (petroleum), hydrotreated heavy Definition Complex combination of hydrocarbons obtained by treating a petrol, fraction with hydrogen in the presence of a catalyst consists predominantly of C6-13 hydrocarbons mixt. of C9-13 naphthenes, iso- and n-paraffins Properties Colorless liq. insol. in water dens. 0.76-0.79 g/cm vapor pressure 0.1-0.3 kPa (20 C) m.p. 0 C b.p. 155-217 C flash pt. (CC) 40-62 C autoignition temp. 255-270 C Toxicoiogy Inh. may cause dizziness, headache, drowsiness, nausea, unconsciousness contact may cause dry skin, eye redness ing. may cause cough, diarrhea, sore throat, vomiting if aspirated, may cause chem. pneumonitis Environmentai Toxic to aquatic organisms ... 

HYDROTREATING OF SRC-II WITH ICR 106 CATALYST NAPHTHA PRODUCT PROPERTIES 2300 PSIA H2... 

PROPERTIES OF NAPHTHAS FROM SEVERELY HYDROTREATING ILLINOIS H-COAL, WYODAK H-COAL, AND SRC-II SYNCRUDES ... 

Table V. Properties of Naphtha Fractions from Hydrotreated Shale Oil Blends and from Arabian Light Crude...

Feedstock. A hydrotreated, straight-run naphtha from a North Sea crude was used as a base feedstock in the test program. By distillation (according to ASTM D-2892, with 15 theoretical plates and a reflux ratio of 5 1) three naphthas with different initial boiling points (IBP) and three naphthas with different final boiling points were produced. The boiling point properties of the base and the derived naphthas are given in Table I. The composition of the different naphthas was determined by GC analysis. 

Synonyms Benzin Benzine Coal tar naphtha Coal tar naphtha distillate Heavy naphtha Hydrotreated naphtha Naphtha coal tar Naphtha, heavy Naphtha, hydrotreated Naphtha, petroleum Naphtha, solvent Petroleum benzin Petroleum-derived naphtha Petroleum distillates (naphtha) Petroleum ether Petroleum naphtha Petroleum oil Petroleum spirit VM P naphtha Classirication Petroleum distillate high benzene naphtha Definition Refined, partly refined, or unrefined petrol, prods, produced by distillation of nat. gas consists of predominantly C5-6 hydrocarbons Properties Dark straw-colored to colorless liq. sol. in benzene, toluene, xylene ... 

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