Saudi Arabian Oil Company

Jgc Catalysts & Chemicals Ltd.

Japan Cooperation Center Petroleum

Toto Ltd.

Koji Nakano

Omer Refa Koseoglu

Masaru Ushio

Adnan Al-Hajji

Ryuzo Kuroda

Takashi Kameoka

Yuichi Takamori

Ali H Al-Abdul'Al

Mishaal Al-Thukair

Hendrik Muller

Ali Mahmoud Al-Somali

Masatoshi Enoki

Hiroshi Tanaka

Osamu Tokunaga

Yukihiro Muroya

Ali Mahmood Al-Somali

Masahiko Imazono

Toshihide Ushita

Yoshiki Ohta

Ali H Al-Abdul'al

Hachihei Watanabe

Koji Morita

Yoshitaka Oba

Masao Shimizu

Eiji Matsuda

Tomoaki Nakano

Kenji Okayama

The invention relates to a method for optimizing layered catalytic processes. This is accomplished by testing various catalysts with a compound found in a feedstock to be tested, to determine the facility of the catalyst in hydrogenating, hydrosulfurizing, or hydrodenitrogenating the molecule, and hence the feedstock. In a preferred embodiment, the Double Bond Equivalence of the feedstock and molecule are determined, and catalysts are pre-selected based upon their known ability to work with materials of this DBE value. In preferred embodiments, the layered catalysts include a demetallization catalyst, used before hydrocracking. In additional preferred embodiments, the test feedstock contains 500 ppmw or less asphaltenes, preferably C-asphaltenes.

Method for optimizing catalyst loading for hydrocracking process

The present invention relates to a hydrocracking catalyst for hydrocarbon oil comprising a support containing a framework-substituted zeolite-1 in which zirconium atoms and/or hafnium atoms form a part of a framework of an ultrastable y-type zeolite and a hydrogenative metal component carried thereon and a method for producing the same. The hydrocracking catalyst of the present invention makes it easy to diffuse heavy hydrocarbon oils such as VGO, DAO and the like into mesopores, is improved in a cracking activity and makes it possible to obtain a middle distillate at a high yield as compared with catalysts prepared by using zeolite comprising titanium and/or zirconium carried thereon.

Hydrocracking catalyst for hydrocarbon oil, method for producing hydrocracking catalyst, and method for hydrocracking hydrocarbon oil with hydrocracking catalyst

In a hydrocracking process, the product from the first stage reactor passes through a steam stripper to remove hydrogen, HS, NH, light gases (C-C), naphtha and diesel products. The stripper bottoms are separated from hydrogen, HS, NH, light gases (C-C), naphtha, and diesel products and treated in a second stage reactor. The effluent stream from the second stage reactor, along with the stream of separated hydrogen, HS, NH, light gases (C-C), naphtha, and diesel products, are passed to a separation stage for separating petroleum fractions. Preferably, the effluent stream from the first stage reactor is passed through a steam generator prior to the steam stripping step. In an alternate embodiment, the effluent stream from the first stage reactor is passed through a vapor/liquid separator stripper vessel prior to the steam stripping step.

Hydrocracking process with interstage steam stripping

The invention relates to a method for optimizing layered catalytic processes. This is accomplished by testing various catalysts with a compound found in a feedstock to be tested, to determine the facility of the catalyst in hydrogenating, hydrosulfurizing, or hydrodenitrogenating the molecule, and hence the feedstock. In a preferred embodiment, the Double Bond Equivalence of the feedstock and molecule are determined, and catalysts are pre-selected based upon their known ability to work with materials of this DBE value.

Automatic faucet

A bubbly water outlet device comprises a swirl chamber which is connected to a water supply source and is adapted to swirl a flow, and a bubbler chamber which is connected to the swirl chamber through a discharge port provided substantially at a center of the swirl chamber. The bubbler chamber is adapted to suck air from an exterior by virtue of the inflow of water from the discharge port and is capable of discharging bubbly water.

Bubbly water outlet device

Growing community of inventors

Fukuoka, Japan

Koji Nakano