摘要:
The present invention relates to a benzotriazole derivative, a preparation process thereof and the use thereof in preparation of the lubricating oil composition. The structure of the benzotriazole derivative of the present invention is shown by general formula (I). The benzotriazole derivative of the present invention, as the anti-wear additive for lubricating oil, not only has an excellent extreme pressure anti-wear property, but also has one or more excellent properties of thermal oxidation stability, corrosion resistance, rust resistance and anti-friction performance.
In the general formula (I), each of the group(s) and the number(s) are defined as in the description.
摘要:
A catalytic conversion process which comprises catalytic cracking reaction of a hydrocarbon feedstock contacting with a medium pore size zeolite enriched catalyst in a reactor, characterized in that reaction temperature, weight hourly space velocity and catalyst/ feedstock ratio by weight are sufficient to achieve a yield of fluid catalytic cracking gas oil between 12% and 60% by weight of said feedstock, wherein said weight hourly space velocity is between 25h -1 and 100 h -1 , said reaction temperature is between 450°C and 600°C, and said catalyst/feedstock ratio by weight is between 1 and 30. This invention relates to a catalytic conversion process, especially for heavy feedstock oil to produce higher octane gasoline and an enhanced yield of propylene. More particularly, the invention relates to a process to utilize petroleum oil resources efficiently for decreasing the yield of dry gas and coke significantly.
摘要:
Disclosed is a process and system for upgrading low-quality oils. The upgrading process comprises: (1) subjecting a low-quality oil to a conversion reaction in the presence of hydrogen and optionally in the presence of a conversion catalyst to obtain a conversion product, (2) processing the conversion product to obtain a first processed product, wherein the first processed product comprises a specific amount of a special component, and (3) subjecting the first processed product to extraction separation to obtain an upgraded oil and a pitch. The upgrading process and the upgrading system have the advantages of stable operation, high upgrading efficiency, environmental friendliness, low coke yield or high yield of upgraded oil.
摘要:
The present disclosure relates to a process for producing catalytic cracking gasoline comprising the following steps: i) subjecting a heavy feedstock oil to a catalytic cracking reaction in the presence of a first catalytic cracking catalyst to obtain a first reaction product; ii) subjecting a hydrogenated cycle oil to a catalytic cracking reaction in the presence of a second catalytic cracking catalyst to obtain a second reaction product; iii) separating a mixture of the first reaction product and the second reaction product to obtain a catalytic cracking gasoline and a catalytic cracking light cycle oil; iv) subjecting the catalytic cracking light cycle oil or a fraction thereof to hydrogenation to obtain a hydrogenated product; and v) recycling the hydrogenated product to the step ii) as the hydrogenated cycle oil. The present disclosure also relates to a catalytic cracking system for carrying out the process. The process and system according to the present application are capable of providing optimized reaction conditions for the hydrogenated cycle oil and the heavy feedstock oil, thereby providing a high yield of high-octane gasoline.
摘要:
The present invention relates to a catalytic cracking catalyst and a preparation process thereof, the catalytic cracking catalyst has a cracking active component, an optional mesoporous aluminosilicate material, a clay and a binder, wherein said cracking active component comprises, substantially consists of or consists of: a rare earth-containing Y zeolite, an optional other Y zeolite, and an optional MFI-structured zeolite, said rare earth-containing Y zeolite has a rare earth content as rare earth oxide of 10-25wt%, e.g. 11-23wt%; a unit cell size of 2.440-2.472nm, e.g. 2.450-2.470nm; a crystallinity of 35-65%, e.g. 40-60%; a Si/Al atom ratio in the skeleton of 2.5-5.0; and a product of the ratio of the strength I 1 of the peak at 2θ=11.8±0.1° to the strength I 2 of the peak at 2θ=12.3±0.1° in the X-ray diffraction spectrogram of the zeolite and the weight percent of rare earth as rare earth oxide in the zeolite of higher than 48, e.g. higher than 55.
摘要:
A hydrocarbon conversion catalyst, which comprises, based on the total weight of the catalyst, 1-60 wt% of a zeolite mixture, 5-99 wt% of a thermotolerant inorganic oxide and 0-70 wt% of clay, wherein said zeolite mixture comprises, based on the total weight of said zeolite mixture, 1-75 wt% of a zeolite beta modified with phosphorus and a transition metal M, 25-99 wt% of a zeolite having a MFI structure and 0-74 wt% of a large pore zeolite, wherein the anhydrous chemical formula of the zeolite beta modified with phosphorus and the transition metal M is represented in the mass percent of the oxides as (0-0.3)Na 2 O·(0.5-10)Al 2 O 3 ·(1.3-10)P 2 O 5 ·(0.7-15)M x O y ·(64-97)SiO 2 , in which the transition metal M is one or more selected from the group consisting of Fe, Co, Ni, Cu, Mn, Zn and Sn; x represents the atom number of the transition metal M, and y represents a number needed for satisfying the oxidation state of the transition metal M. The catalysts provided in the present invention have higher ability to convert petroleum hydrocarbons and higher yields for light olefins, particularly for propylene. The catalysts can be used for the selectively producing light olefins.
摘要:
The present invention relates to a catalytic conversion apparatus, characterized in that said apparatus comprises at least one feed oil cracking riser reactor, a dense bed reactor, a disengager, and a stripper, wherein said stripper locates below said dense bed reactor and communicates directly with the lower part of the dense bed reactor or through a fluid-communicating channel, the outlet of at least one of said riser reactor(s) communicates with the lower part of said dense bed reactor or any part of said fluid-communicating channel, the outlet of said dense bed reactor communicates with the inlet of a gas-solid separating apparatus located in said disengager through said disengager and/or through an optional transporting channel, the catalyst outlet of said disengager communicates with at least one position selected from the upper part of said stripper, any part of said fluid-communicating channel, and the lower part of said dense bed reactor, through at least one catalyst transporting channel. The catalytic conversion apparatus according to the present invention sets up at least one riser reactor and a dense bed reactor to carry out further cracking of the intermediate products, produced from the feed oil by the cracking reaction in the riser, in the dense bed reactor. Moreover, the spent catalysts discharged from the outlet of the dense bed reactor can be introduced into the stripper via a specific catalyst transporting channel, so as to maintain higher activity and temperature of the catalyst in the dense bed reactor and be advantageous to deeper cracking of the intermediate products in the dense bed reactor so as to produce more light olefins, particularly propylene.