摘要:
The present invention provides a desulfurization system for desulfurizing a hydrocarbon fuel containing a light amount of methanol and a slight amount of water. The desulfurization system comprises a Y-type zeolite-based desulfurizing agent containing at least copper arranged upstream of the system and an X-type zeolite-based desulfurizing agent containing at least silver arranged downstream of the system and thus can maintain desulfurization effect for a long period of time.
摘要:
Conventional hydrogen purification apparatuses cannot be used satisfactorily for applications in which much time is required for startup of the apparatus, and the apparatus is repeatedly started and stopped at frequent intervals because of complicated handling. In a hydrogen purification apparatus comprising at least a catalysis body 1 removing carbon monoxide from a reformed gas containing hydrogen, carbon monoxide and steam, the catalyst body 1 is constituted by a carrier comprised of a complex oxide in which at least one of Mo, W and Re is compounded with Zr, or comprised of an oxide of one of Mo, W, Re and Zr, and at least one of Pt, Pd, Rh and Ru carried on the surface of the carrier.
摘要:
The hydrocracking method of wax of the invention is a hydrocracking process wherein crude wax is subjected to hydrocracking and the untreated wax fraction that is produced after the hydrocracking is re-supplied for hydrocracking, and wherein hydrocracking of the mixture of the crude wax and untreated wax fraction is carried out in such a manner for a conversion ratio of 50-85 % by mass from the wax fraction with a boiling point of 360°C or above to the light fraction with a boiling point of below 360°C in the presence of a hydrocracking catalyst. It is thereby possible to simultaneously achieve both an increased heart-cut fraction yield (as the product of the hydrocracking) and a reduced normal paraffin content in the heart-cut fraction when the untreated wax is hydrocracked by a bottom recycling system.
摘要:
The gas oil fraction hydrotreatment process of the invention is characterized by using a hydrorefined petroleum-based hydrocarbon oil with a sulfur content of 5-15 ppm by mass, a total aromatic content of 10-25 % by volume and a boiling point range of 150-380°C as the feed oil and subjecting the feed oil to hydrotreatment in the presence of a hydrogenation catalyst to obtain an ultralow sulfur and low aromatic gas oil fraction having a sulfur content of not greater than 1 ppm by mass and a total aromatic content of not greater than 1 % by volume. This hydrotreatment process allows production of a "zero sulfur" and "zero aromatic" gas oil fraction in an efficient and reliable manner without provision of special operating conditions or equipment investment.
摘要:
A catalyst composition comprising a minor amount of a low acidity, highly dealuminated ultra stable Y zeolite having an Alpha value of less than about 5, preferable less than about 3 and Broensted acidity measured by FT-IR from about 1 to about 20, preferably from about 1-10, micro mole/g of, a homogeneous, amorphous silica-alumina cracking component having an SB ratio of from about 0.7 to about 1.3, wherein a crystalline alumina phase is present in an amount of no greater than about 10%, preferably no greater than 5% and a catalytic amount of hydrogenation component selected from the group consisting of a Group VI metal, a Group VIII metal, and mixtures thereof is disclosed. The present invention provides for a process for converting hydrocarbonaceous oils comprising contacting the hydrocarbonaceous oils with the catalyst under suitable hydrocarbon conversion conditions. Such processes in include, but are not limited to, single stage hydrocracking, two-stage hydrocracking, series-flow hydrocracking, mild hydrocracking, lube hydrocracking, hydrotreating, lube hydrofinishing, hydrodesulphurization, hydrode nitrification, catalytic dewaxing and catalytic cracking.
摘要:
There is provided a process for producing adamantane and analogues thereof, namely a hydrocarbon having an adamantane structure which process comprises isomerizing a tricyclic saturated hydrocarbon having ten or more carbon atoms in the presence of a catalyst in which one or two or more metals selected from among the metals belonging to group VIII in the Periodic Table (group 8 to 10 in the new Periodic Table) are supported on zeolite by means of an ion exchange method. It is made possible by the above process to efficiently produce adamantane and analogues thereof in the presence of a solid catalyst without the use of hydrogen chloride.
摘要:
A novel catalyst composition and process for catalytic cracking of a hydrocarbon oil. The catalyst comprises zeolite beta and a shape selective cracking component, preferably ZSM-5, and may include conventional cracking catalyst components such as zeolite Y. These components may be present in one particle or as a blend of separate particle additives. The composition increases light olefin yields and gasoline octane as compared to catalyst containing either, but not both of, ZSM-5 and zeolite beta.
摘要:
A mixture of methane and ehtane is prepared from C 2 - 4 paraffins of which the average numbers of carbon atoms is at least 0.5 higher, by contacting the paraffins at a pressure above 10 bar with ZSM-5 having an Al 2 O 3 /SiO 2 molar ratio of at least 0.005.