The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 1979
Filed:
May. 23, 1977
James E Tackett, Jr, Littleton, CO (US);
Marathon Oil Company, Findlay, OH (US);
Abstract
The efficiency of a hydrocarbon slurry is maximized by determining the largest percent of economically pumpable distillation overhead that can be obtained from the hydrocarbon. This determination is based on the properties of the overhead as a carrier fluid in the transporting system (e.g. slurry viscosity or pumpability). Once determined, the composition of the optimum overhead is determined by the usual techniques, i.e., by gas chromatographic techniques, to determine its composition and the cut point defined in terms of the composition of the optimum overhead. The composition of the overhead is monitored during the refining process and is compared with the composition of the optimum overhead. The distillation process is then monitored and controlled accordingly to produce an overhead with the desired molecular composition. One advantage of this method is that it limits the amount of undesirable wax crystals in the overhead. The method works particularly well with waxy hydrocarbon mixtures in fractional distillation processes.