China Petroleum Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Other

Tsinghua University

China Petrochemical Corporation

China Petroleum and Chemical Corporation and Research Institute of Petroleum Processing, Sinopec

Zhijian Da

Jun Long

Jiushun Zhang

Huiping Tian

Mingyuan He

Yuxia Zhu

Zhenyu Chen

Chaogang Xie

Zheng Li

Xingtian Shu

Yujian Liu

Hong Nie

Zhigang Zhang

Youhao Xu

Jun Du

Yaoqing Guo

Yibin Luo

Xieqing Wang

Jianhong Gong

Shouye Cui

Wei Wang

Peng Wang

Wei Lin

Dadong Li

Enze Min

Lishun Dai

Ying Ouyang

Haitao Song

Zhanzhu Zhang

Qiuqiao Jiang

Xin Wang

Tao Liu

Yan Sun

Xue Yang

Weilin Zhang

Baoning Zong

Mingde Xu

Shuandi Hou

Kejia Xu

Anguo Mao

Zhenbo Wang

Li Zhuang

Longsheng Tian

Jinbiao Guo

Jiasong Yan

Jinlian Tang

Yong Jin

Zhiqing Yu

Youbao Lu

Zhanwen Wang

Zhonghong Qiu

Wanhong Zhang

Shuandl Hou

Caiying Li

Zhiqing Huang

Zhiging Yu

Wugeng Liang

A structured monolithic catalyst has a structured monolithic carrier and a coating of active components. The coating of active components comprises active metal components and a substrate. The active metal components conclude a first metal element, a second metal element, a third metal element and a fourth metal element. The first metal element includes Fe and Co; the second metal element is at least one selected from the group consisting of the metal elements of the Group IA and/or IIA; the third metal element is at least one selected from the group consisting of the non-noble metal elements of the Groups IB to VIIB; and the fourth metal element is at least one selected from the group consisting of the noble metal elements.

Structured monolith catalyst for reducing NOX emission in flue gas, preparation method and applications thereof

The present invention relates to the field of catalytic cracking, and discloses a composition capable of reducing CO and NOx emissions, the preparation method and use thereof, and a fluidized catalytic cracking method. The inventive composition capable of reducing CO and NOx emissions comprises an inorganic oxide carrier, and a first metal element, optionally a second metal element, optionally a third metal element and optionally a fourth metal element supported on the inorganic oxide carrier, wherein the first metal element includes Fe and Co, and wherein the weight ratio of Fe to Co is 1:(0.1-10) on an oxide basis. The inventive composition has better hydrothermal stability and higher activity of reducing CO and NOx emissions in the flue gas from the regeneration.

Composition capable of reducing CO and NOx emissions, preparation method therefor and use thereof, and fluid catalytic cracking method

The present application relates to a process for treating gasoline, comprising the steps of: contacting a gasoline feedstock with a mixed catalyst and subjecting it to desulfurization and aromatization in the presence of hydrogen to obtain a desulfurization-aromatization product; optionally, splitting the resulting desulfurization-aromatization product into a light gasoline fraction and a heavy gasoline fraction; and, optionally, subjecting the resulting light gasoline fraction to etherification to obtain an etherified oil; wherein the mixed catalyst comprises an adsorption desulfurization catalyst and an aromatization catalyst. The process of the present application is capable of reducing the sulfur and olefin content of gasoline and at the same time increasing the octane number of the gasoline while maintaining a high yield of gasoline.

Process for treating gasoline

A process for producing light olefins and aromatics, which comprises reacting a feedstock by contacting with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone among the reaction zones downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone, separating the spent catalyst from the reaction product vapor, regenerating the separated spent catalyst and returning the regenerated catalyst to the reactor, and separating the reaction product vapor to obtain the desired products, light olefins and aromatics. This process produces maximum light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.

Process for producing light olefins and aromatics

The present invention provides a catalytic cracking catalyst, processing method and use thereof. When the catalyst is added into a commercial catalytic cracking unit, it has an initial activity of not higher than 80, preferably not higher than 75, more preferably not higher than 70, a self-balancing time of 0.1-50 h, and an equilibrium activity of 35-60. Said method enables the activity and selectivity of the catalyst in the catalytic cracking unit to be more homogeneous and notably improves the selectivity of the catalytic cracking catalyst, so as to obviously reduce the dry gas and coke yields, to sufficiently use steam and to reduce the energy consumption of the FCC unit.

Catalytic cracking catalyst having a higher selectivity, processing method and use thereof

A cracking catalyst, which contains alumina, phosphorus and molecular sieve, with or without clay, wherein said alumina is &#x3b7;-alumina or a mixture of &#x3b7;-alumina and &#x3c7;-alumina and/or &#x3b3;-alumina, and wherein the catalyst contains, on the basis of the total amount of the catalyst, 0.5-50 wt % of &#x3b7;-alumina, 0-50 wt % of &#x3c7;-alumina and/or &#x3b3;-alumina, 10-70 wt % of molecular sieve, 0-75 wt % of clay, and 0.1-8 wt % of phosphorus, measured as PO. The catalyst not only has higher cracking activity and higher cracking ability for cracking heavy oil, but also improves significantly quality and yield of gasoline, LCO and LPG in cracking products.

Cracking catalyst and a process for preparing the same

A novel process for cracking olefins including contacting a hydrocarbon oil with a catalyst in a riser reactor having multiple reaction zones under cracking reaction conditions; separating reaction products and the catalyst; regenerating at least a part of spent catalyst obtained, contacting a part of the regenerated catalyst with the hydrocarbon in the first reaction zone; contacting the other part of the spent catalyst and/or regenerated catalyst in at least one reaction zone after the first reaction zone with the products obtained in previous reaction zones.

Process for cracking hydrocarbon oils

A process for producing light olefins and aromatics, which comprises reacting a feedstock with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone. The spent catalyst is separated, from the reaction product vapor, regenerated, and then returned to the reactor. The reaction product vapor is separated to obtain the desired products, light olefins and aromatics. This process efficiently produces light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.

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 25 hand 100 h, said reaction temperature is between 450&#xb0; C. and 600&#xb0; 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.

Catalytic conversion process

A catalytic conversion process for increasing the light olefin yields, which comprises bringing a hydrocarbon oil feedstock into contact with a catalytic conversion catalyst in a catalytic conversion reactor including one or more reaction zones to carry out the reaction, wherein the hydrocarbon oil feedstock is subjected to the catalytic conversion reaction in the presence of an inhibitor; and separating the reactant vapor optionally containing the inhibitor from the coke deposited catalyst, wherein a target product containing ethylene and propylene is obtained by separating the reactant vapor, and the coke deposited catalyst is stripped and regenerated for recycle use by being returned to the reactor. The process can weaken the further converting reaction of produced light olefins such as ethylene and propylene to 50-70% of the original level by injecting the inhibitor; thereby it can increase the yields of the target products. When vacuum gas oil is used as the feedstock, the yield of ethylene is as high as 8.73 wt % and that of propylene is as high as 29.30 wt %, increasing by 14.4% and 26.6% respectively comparing to those obtained without the inhibitor being injected.

Catalytic conversion method of increasing the yield of lower olefin

A catalytic conversion process to convert inferior feedstock to high quality fuel oil and propylene is disclosed. Inferior feedstock is introduced into first and second reactor zone, wherein first step and second step reactions occur by contacting with catalytic conversion catalyst. Product vapors include fluid catalytic cracking gas oil (FGO) which is introduced into a hydrotreating unit and/or extraction unit to obtain hydrotreated FGO and/or extracted FGO. Hydrotreated FGO and/or extracted FGO returns to the first reactor zone and/or another catalytic cracking unit to obtain propylene and gasoline. The extracted oil of said FGO is rich in double ring aromatics and the raffinate of said FGO is rich in chain alkane and cycloalkane. More particularly, the invention utilizes petroleum oil resources efficiently for decreasing the yield of dry gas and coke significantly.

Process for converting inferior feedstock to high quality fuel oil

A conversion apparatus for catalytic cracking a hydrocarbon feed to light hydrocarbon comprises at least one riser reactor, a dense bed reactor, a disengager, and a stripper. A dense bed reactor which is separated from disengage, is employed to enforce further cracking hydrocarbon to light olefins, with low methane yield. 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, to maintain catalyst concentration in the dense bed reactor that can be advantageous to deeper cracking of the intermediate products to produce more light olefins, particularly propylene.

Catalytic conversion apparatus

A catalyst for converting hydrocarbons includes, based on the weight of the catalyst, 1-60% by weight of a zeolite, 0.1-10% by weight of an assistant catalytic component, 5-98% by weight of a thermotolerant inorganic oxide, and 0-70% by weight of a clay in terms of the oxide. The zeolite is a MFI-structured zeolite-containing phosphor and transition metal(s) or a mixture of the zeolite and a macroporous zeolite, which comprises, based on the weight of the mixture, 75-100% by weight of said MFI-structured zeolite containing phosphor and transition metal(s) and 0-25% by weight of the macroporous zeolite. In terms of the mass of the oxide, the MFI-structured zeolite containing phosphor and transition metal(s) has the following anhydrous chemical formula:(0-0.3)NaO.(0.3-5.5)AlO.(1.0-10)PO.(0.7-15)M1O.(0.01-5)M2O(0-10)REO.(70-97)SiO&#x2003;&#x2003;Ior(0-0.3)NaO.(0.3-5)AlO.(1.0-10)PO.(0.7-15)MO.(0-10)REO.(70-98)SiO&#x2003;&#x2003;II The assistant catalytic component is one or more selected from the group consisting of the alkali earth metals, Group IVB metals, non-noble metals of Group VIII, and rare earth metals of the Periodic Table of the Elements. This catalyst has a higher ability to convert petroleum hydrocarbons and higher yields for propylene, ethylene, and light aromatics.

Zeolite-containing hydrocarbon-converting catalyst, the preparation process thereof, and a process for converting hydrocarbon oils with the catalyst

The present invention provides a cracking catalyst, containing a rare-earth Y-zeolite and a support, which is characterized in that the rare-earth content in crystal lattice of the rare-earth Y-zeolite is 4-15 wt % of REO; the original unit cell size is 2.440-2.465 nm; the equilibrium unit cell size of the catalyst after 100% steam-aging treatment at 800&#xb0; C. for 17 hours is larger than 2.435 nm; the rare-earth atom content in the support is 1.0-8.0 wt % of the support. The present invention also relates to a preparation process for the same catalyst.

Cracking catalyst and a preparation process for the same

A modified zeolite beta having an anhydrous chemical formula, by weight % of the oxides, of (0-0.3)NaO.(0.5-10)AlO.(1.3-10)PO.(0.7-15)MO.(70-97)SiO, wherein M is one or more transition metal(s) selected from the group consisting of Fe, Co, Ni, Cu, Mn, Zn and Sn, x is the number of the atoms of said transition metal M, and y is a number that meets with the requirement of the oxidation state of said transition metal M, is disclosed. The modified zeolite beta can be used as an active component of a cracking catalyst or additive for catalytic cracking of petroleum hydrocarbons.

Modified zeolite beta

Growing community of inventors

Beijing, China

Zhijian Da