摘要:
There is provided a method for hydrogenating aromatics with a catalyst comprising a crystalline ultra-large pore oxide material. The catalyst also comprises a hydrogenation metal, such as palladium. The process may be used to saturate benzene to form cyclohexane.
摘要:
A catalytic process is provided for the preparation of dialkylnaphthalenes by alkylating a 2-alkylnaphthalene with an alkylating agent having an aliphatic group of from one to five carbon atoms, such as methanol. The catalyst comprises a synthetic zeolite characterized by an X-ray diffraction pattern including interplanar d-spacings at 12.36.+-.0.4, 11.03.+-.0.2, 8.83.+-.0.14, 6.18.+-.0.12, 6.00.+-.0.10, 4.06.+-.0.07, 3.91.+-.0.07 and 3.42.+-.0.06 Angstroms.
摘要:
Aliphatic C.sub.2 to C.sub.12 hydrocarbons are converted in the presence of a particular zeolite catalyst to a mixture of aromatics, optionally containing olefins.
摘要:
A catalyst composition suitable for use in aromatization of non-aromatic hydrocarbons comprises a shape-selective crystalline slicate such as ZSM-5 and a titanometallate-type layered metal oxide comprising a layered metal oxide and pillars of an oxide of at least one element selected from Groups IB, IIB, IIIA, IIIB, IVA, IVB, VA, VB, VIA, VIIA and VIIIA of the Periodic Table of the Elements separating the layers of the metal oxide where each layer of the metal oxide has the general formula[M.sub.x .sub.y Z.sub.2-(x+y) O.sub.4 ].sup.q-wherein M is at least one metal of valence n wherein is an integer between 0 and 7, represents a vacancy site, Z is a tetravalent metal, and whereinq=4y-x(n-4)0
摘要翻译:适合用于非芳族烃芳构化的催化剂组合物包括形状选择性晶体切片如ZSM-5和金属金属盐型层状金属氧化物,其包含层状金属氧化物和选自以下的至少一种元素的氧化物柱 分离金属氧化物层的元素周期表的IB,IIB,IIIA,IIIB,IVA,IVB,VA,VB,VIA,VIIA和VIIIA,其中每层金属氧化物具有通式[M x y Z2-(x + y)O4] q-其中M是价数n的至少一种金属,其中0和7之间的整数表示空位,Z是四价金属,并且其中q = 4y-x(n -4)0
摘要:
The present invention relates to a process for conversion of feedstock comprising C.sub.3.sup.+ olefins in the absence of added hydrogen over a catalyst comprising a crystalline zeolite having large pores and a high silica/alumina mole ratio.
摘要:
A sorption system is disclosed that includes a sorbent material and a fluid, in which the sorbent material and fluid in combination have a pressure index of at least 1.2.
摘要:
The present invention relates to the removal of mercury and other heavy metals from a hydrocarbon feedstream. The process involves contacting the hydrocarbon feedstream with a feedstream-soluble sulfur compound and then contacting the hydrocarbon feedstream and solubilized sulfur compound with an adsorbent.
摘要:
Petroleum wax feeds having a low oil content are converted to high viscosity index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed is initially subjected to hydrocracking under mild conditions with a conversion to lube range products of between generally 30 and 40 weight percent of the feed. The hydrocracking is carried out at a hydrogen pressure of at least 800 psig using an amorphous catalyst which preferentially removes the aromatic components present in the initial feed. The hydrocracked effluent is then subjected to hydroisomerization in a second step using a low acidity zeolite beta catalyst. The second stage may be operated at high pressure by cascading the first stage product into the second stage or at a lower pressure, typically from 200 to 1000 psig. The second stage catalyst is preferably a noble metal containing zeolite beta catalyst. The second stage is carried out at relatively low temperature, typically from 600.degree. to 650.degree. F. A final dewaxing step to target pour point may be used.
摘要:
Heavy oils are subjected to catalytic cracking in the absence of added hydrogen using a catalyst containing a zeolite having the structure of ZSM-12 and a large-pore crystalline zeolite having a Constraint Index less than about 1. The process is able to effect a bulk conversion of the oil while at the same time yielding a higher octane gasoline and increased light olefin content.
摘要:
A process for the dealumination of a zeolite having the structure of mordenite by contacting the zeolite with dicarboxylic acid, such as oxalic acid, and steaming. The process is useful for the dealumination of TEA mordenite.