Boots – shoes – and leggings
Patent
1995-02-24
1996-12-17
Voeltz, Emanuel T.
Boots, shoes, and leggings
364500, 364502, 44449, 23306, G01F 100
Patent
active
055860516
ABSTRACT:
In a process for manufacture of a chemical product, a reactive hydrocarbon feedstream, which varies in composition of the reactive component, is combined with a compatible but unreactive hydrocarbon feedstream to form a blended hydrocarbon stream which is then combined with a reactive alcohol stream of stable concentration of its reactive component, to form a complete feedstream to the reactor. A desired ratio of relative reactant concentrations in the complete feedstream to the reactor is maintained by a control system which maintains a stable concentration in the blended hydrocarbon stream by manipulating flow rate of the unreactive hydrocarbon feedstream responsive to a concentration measurement in the blended hydrocarbon stream. Flow ratio control is then applied to maintain a desired ratio of reactants in the complete feedstream for the reactor by calculating a flow ratio of the blended hydrocarbon stream to the reactive alcohol feedstream. The calculated flow ratio is the process variable input to a manually set ratio controller which manipulates the flow rate of the reactive alcohol feedstream responsive to the flow ratio.
REFERENCES:
patent: 3135807 (1964-06-01), Grasselli et al.
patent: 4290110 (1981-09-01), Makovec
patent: 4332590 (1982-06-01), Smith
patent: 4981491 (1991-01-01), Harandi et al.
patent: 5108719 (1992-04-01), Harandi et al.
patent: 5118871 (1992-06-01), Cikat et al.
Bridges Steven D.
Brinkmeyer Francis M.
Dunn Robert O.
Facker Michael L.
Lyons Martin K.
Bogatie George E.
Phillips Petroleum Company
Pipala Edward
Voeltz Emanuel T.
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