Boots – shoes – and leggings
Patent
1980-01-31
1981-02-17
Wise, Edward J.
Boots, shoes, and leggings
364578, 364118, 364121, 73 231, 73 35, G06F 1520
Patent
active
042518709
ABSTRACT:
A system for predicting the octane number of a substantially olefin-free gasoline or gasoline component. A sample of reformed gasoline is analyzed by means of a gas chromatograph in order to ascertain the presence and amount of its constituents. Signals representing both the identities of the various constituents and their percent volume are applied to a computer which includes means for associating the constituents with predetermined groups and combining the relative volumes of the constituents of each group. Subsequent apparatus assigns predetermined coefficients to each of the groups, after which the volumes of each group are multiplied by the group coefficient. The resulting products are then summed to produce a first expression A. A second expression B comprises the summed differences between the product of the volume and octane number, and the product of the volume, octane number and coefficient, for each group. The second expression is then combined according to the formulation B/(1-A) to produce an estimation of the octane number of the sample. The octane number so derived is applied to control a process for the manufacture of gasoline or a gasoline component in modification of process conditions to achieve a result desired. The principles of the invention are applicable to the manufacture of gasoline and gasoline components generally.
REFERENCES:
patent: 3385680 (1968-05-01), Feld et al.
patent: 3469954 (1969-09-01), Hoffman
patent: 3501700 (1970-03-01), Boyd, Jr.
patent: 3511980 (1970-05-01), May
Gilman M. G.
Huggett C. A.
Mobil Oil Corporation
Wise Edward J.
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