Mineral oils: processes and products – Chemical conversion of hydrocarbons – With subsequent treatment of products
Patent
1984-06-28
1985-11-05
Gantz, D. E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With subsequent treatment of products
208DIG1, 208107, 208108, 208133, 208134, 208142, 208143, 208209, 208213, 585250, 585483, 585486, 585616, 585654, C10G 4572, C10G 4736, C10G 4926, C10G 3524
Patent
active
045512353
ABSTRACT:
There is disclosed a system for measuring and controlling the concentration of hydrogen in hydrogen recycle processes used in oil refineries and petrochemical plants. The system is intended to reduce the amount of hydrogen and hydrocarbon vapor circulating in such systems, thus reducing the quantity of utilities needed to operate such systems. Specifically, there is a savings of compressor power and fuel required for heating. The system is dependent on the recognition that a decrease in cooling medium temperature results in an increase in hydrogen flow, which can be decreased to the minimum permissible without endangering catalyst activity and stability and product yield if hydrogen concentration is monitored, and that partial pressure is the key parameter.
REFERENCES:
patent: 3248317 (1966-04-01), Pohlenz et al.
patent: 3306841 (1967-02-01), Ward
patent: 3607091 (1971-09-01), Boyd
patent: 3972804 (1976-08-01), McLaughlin et al.
Chaudhuri O.
Cordovano Richard J.
Gantz D. E.
McBride Thomas K.
Page II William H.
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