Abstract:
PROBLEM TO BE SOLVED: To provide a catalyst for hydrogenating a heavy hydrocarbon supply raw ingredient yielding a fair hydrogenating conversion gain, namely a gain of the conversion of at least a portion of the heavy hydrocarbon supply raw ingredient into a lighter hydrocarbon.SOLUTION: An improved catalyst for hydrogenating a heavy hydrocarbon supply raw ingredient is obtained by combining vanadium and phosphorus with at least one type of group VIB metallic element and at least one type of group VIII metallic element and by supporting all elements on a porous refractory oxide having proper surface textural characteristics.
Abstract:
PROBLEM TO BE SOLVED: To provide a method of configuring plates for filtering and uniformly distributing gas and liquid at an inlet to a fixed bed type catalytic reactor operating in a trickle flow mode.SOLUTION: Gas is admitted via an open upper end of distribution elements 5, said upper end being located above a filtration layer 4. Liquid is admitted via a row of orifices 10, this row being located in a portion below the filtration layer 4 and above a plate 2 itself.
Abstract:
PROBLEM TO BE SOLVED: To provide a new method of analysis for on-line concentration measurement of flow composition in hydrocarbon traveling within various separated bands of the simulated moving bed based on simultaneous measurement of Raman spectrum and temperature for a sample in the measuring point. SOLUTION: This invention is the method using an immersion probe and a thermocouple to measure concentration of a form existed in one point of a separator which functions in a manner of the simulated moving bed (SMB). The immersion probe is located in one of the flows entering or coming from one point inside the above separator or the separator itself, while the thermocouple is located near the immersion probe. Further the Raman spectrum obtained by using a laser light source which functions in wavelength of 785 nm is also used. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
Procédé d'hydrotraitement d'une fraction lourde d'hydrocarbures utilisant un système de zones de garde permutables en lits fixes contenant chacune au moins un lit catalytique incluant au moins une étape au cours de laquelle le flux de la charge alimentant la première zone de garde mise en contact avec la charge est en partie basculé vers la prochaine zone de garde en aval, de préférence de façon progressive.