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.
摘要翻译:一种烃转化催化剂,其基于催化剂的总重量包含1-60重量%的沸石混合物,5-99重量%的耐热无机氧化物和0-70重量%的粘土,其中所述沸石混合物 包括基于所述沸石混合物的总重量,1-75重量%的用磷和过渡金属M改性的沸石β,25-99重量%的具有MFI结构的沸石和0-74重量%的 大孔沸石,其中用磷和过渡金属M修饰的β沸石的无水化学式以氧化物的质量百分比表示为(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,其中过渡金属M为选自Fe,Co,Ni, Cu,Mn,Zn和Sn; x表示过渡金属M的原子数,y表示满足过渡金属M的氧化态所需的数。本发明中提供的催化剂具有较高的转化石油烃的能力和较高的轻质烯烃产率,特别是 用于丙烯。 催化剂可用于选择性生产轻质烯烃。
摘要:
A process for the catalytic conversion of hydrocarbons, said process comprising the following steps: a feedstock of hydrocarbons is contacted with a hydrocarbon-converting catalyst to conduct a catalytic cracking reaction in a reactor, then the reaction products are taken from said reactor and fractionated to give light olefins, gasoline, diesel, heavy oil and other saturated hydrocarbons with low molecular weight, wherein said hydrocarbon-converting catalyst 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 process of the present invention has a higher ability to convert petroleum hydrocarbon in a higher yield for light olefins, particularly for propylene.
摘要翻译:一种用于烃的催化转化的方法,所述方法包括以下步骤:烃的原料与烃转化催化剂接触以在反应器中进行催化裂化反应,然后将反应产物从所述反应器中取出并分馏成 给出轻质烯烃,汽油,柴油,重油和其他具有低分子量的饱和烃,其中所述烃转化催化剂基于催化剂的总重量包含1-60重量%的沸石混合物,5-99重量% %的耐热无机氧化物和0-70重量%的粘土,其中所述沸石混合物基于所述沸石混合物的总重量包含1-75重量%用磷改性的沸石β和过渡金属M 25 -99重量%的具有MFI结构的沸石和0-74重量%的大孔沸石,其中用磷和过渡金属M修饰的β沸石的无水化学式表示为th e质量百分比的氧化物为(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,其中过渡金属M为选自Fe,Co,Ni,Cu,Mn,Zn和Sn中的一种或多种; x表示过渡金属M的原子数,y表示满足过渡金属M的氧化态所需的数。本发明的方法具有较高的轻质烯烃转化石油烃的能力, 特别是对于丙烯。
摘要:
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.
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:
A process for combining the catalytic conversion of organic oxygenates and the catalytic conversion of hydrocarbons: an organic oxygenate feedstock is contacted with a Y-zeolite containing catalyst to produce a reaction stream, and a coked catalyst and a product stream are obtained after separating the reaction stream; a hydrocarbon feedstock is contacted with a Y-zeolite containing catalyst to produce a reaction stream, a spent catalyst and a reaction oil vapor are obtained after separating the reaction stream, and the reaction oil vapor is further separated to give the products such as gas, gasoline and the like; a part or all of the coked catalyst and a part or all of the spent catalyst enter the regenerator for the coke-burning regeneration, and the regenerated catalyst is divided into two portions, wherein one portion returns to be contacted with the hydrocarbon feedstock, and the other portion, after cooling, returns to be contacted with the organic oxygenate feedstock. This process not only reasonably utilizes the excessive thermal energy of the hydrocarbon conversion, but also solves the problem of heat supply for the conversion of the organic oxygenate, thus ensuring the continuous catalytic conversion of the organic oxygenate.
摘要:
A process for production of lower olefins, especially propylene, isobutylene and isoamylene, and high octane number gasoline through catalytic conversion which comprises contacting the petroleum hydrocarbon with a solid catalyst for 0.1-6 second, at a temperature of 480-680 °C, a pressure of 1.2-4.0 x 105 Pa and catalyst-to-oil ratio of 4-20. The solid catalyst comprises phosphorus and rare-earth-containing high silica zeolite with the structure of a pentasil.