摘要:
In a process for producing phenol, a feed comprising cyclohexylbenzene hydroperoxide is contacted with a cleavage catalyst comprising an acidic ionic liquid under cleavage conditions effective to cleave at least a portion of said cyclohexylbenzene hydroperoxide and produce a cleavage product stream comprising phenol and cyclohexanone.
摘要:
Methods are provided for processing glycerides to form lubricant boiling range molecules in a single reactor and/or a single reaction zone. The glycerides are exposed to catalysts that are stable under the conditions present in the reaction zones during conversion of glycerides to fatty ketones via a coupling reaction in the presence of a first catalyst, and the subsequent deoxygenation and isomerization of the ketones in the presence of a second dewaxing catalyst. The glyceride-containing feedstock can further include free fatty acids or fatty acid derivatives that can also be used for formation of ketones and subsequent deoxygenation and isomerization. In some configuration, the processing can occur in a single reaction zone containing mixed beds of the first and second catalyst. Such configurations can be used to control the ratio of diesel boiling range molecules versus lubricant boiling range molecules generated by the methods.
摘要:
In a process for producing phenol and cyclohexanone a feed comprising cyclohexylbenzene hydroperoxide and water in an amount from 1 to 15,000 ppm, based upon total weight of feed, is contacted with a cleavage catalyst comprising an aluminosilicate of the FAU type under cleavage conditions effective to convert at least a portion of the cyclohexylbenzene hydroperoxide into phenol and cyclohexanone.
摘要:
Provided are catalysts including: a zeolite component selected from zeolites having 10-member ring pores, zeolites having 12-member ring pores and a combination thereof, 0.1 to 5 weight % of a hydrogenation component selected from Pt, Pd, Ag, Ni, Co, Mo, W, Rh, Re, Ru, Ir and a mixture thereof, and a hydrothermally stable binder component selected from tantalum oxide, tungsten oxide, molybdenum oxide, vanadium oxide, magnesium oxide, calcium oxide, yttrium oxide, lanthanum oxide, cerium oxide, niobium oxide, tungstated zirconia, cobalt molybdenum oxide, cobalt molybdenum sulfide, nickel molybdenum oxide, nickel molybdenum sulfide, nickel tungsten oxide, nickel tungsten sulfide, cobalt tungsten oxide, cobalt tungsten sulfide, nickel molybdenum tungsten oxide and nickel molybdenum tungsten sulfide, cobalt molybdenum tungsten oxide and cobalt molybdenum tungsten sulfide, wherein the weight ratio of the zeolite to the hydrothermally stable binder is 85:15 to 25:75.
摘要:
A method, apparatus, and full-system simulator for speeding memory management unit simulation with direct address mapping on a host system, the host system supporting a full-system simulator, on which a guest system is simulated, the method comprising the following steps: setting a border in the logical space assigned for the full-system simulator by the host system, thereby dividing the logical space into a safe region and a simulator occupying region; shifting the full-system simulator itself from the occupied original host logical space to the simulator occupying region; and reserving the safe region for use with at least part of the guest system.
摘要:
A highchair has a seat device, a bracket device and a table. The seat device has a base, a supporting sleeve and a seat. The bracket device is connected to the seat device and has two connecting segments, a connecting frame and a supporting arm. The connecting segments are respectively connected securely to the supporting sleeve and each has a connecting mount, a button seat, a pressing button and a button spring. The connecting frame connects to the connecting segments and has two inserting segments and a primary frame. The supporting arm is telescopically and pivotally connected to the connecting frame. The table is detachably mounted on the bracket device.
摘要:
An apparatus and method for managing a translation look-aside buffer (TLB). The TLB is shared by a plurality of jobs. The method including the steps of: obtaining at least one attribute of each job of the plurality of jobs; assigning a priority level to each job according to at least one attribute of each job; and managing the related TLB entries of each job according to the priority level of each job. The present invention also provides an apparatus for managing TLB corresponding to the above method. The method and apparatus according to the present invention provide an efficient use of the shared TLB.
摘要:
A porous material comprises oxides of silicon and aluminum and is substantially free of X-ray diffraction peaks in its calcined form. The material is characterized by the following properties: (a) a Bronsted acid site density as measured by temperature programmed ammonia adsorption of at least 0.005 mmol/g; (b) an alpha value of at least 0.5; (c) a specific surface area of about 50 to about 160 m2 g−1; (d) a total pore volume of about 0.14 to about 1.0 cm3 g−1; and (d) a micropore volume of about 0.001 to about 0.015 cm3 g−1.
摘要翻译:多孔材料包括硅和铝的氧化物,并且其煅烧形式基本上不含X射线衍射峰。 该材料的特征在于以下性质:(a)通过温度程序氨吸附测定的布朗斯台德酸位点密度为至少0.005mmol / g; (b)α值至少为0.5; (c)约50至约160m2 g-1的比表面积; (d)总孔体积为约0.14至约1.0cm 3 g -1; 和(d)约0.001至约0.015cm 3 g -1的微孔体积。
摘要:
A method and system for compressing and encrypting data. The method includes: receiving original data; performing a first compression of said original data to obtain a first compression result; and encrypting only a literal portion in the first compression result to obtain an encrypted first compression result. Embodiments of the present invention improve the efficiency of the process of compression +encryption to a great extent by means of encrypting only the literal portion of the compression result.
摘要:
In a process for dealkylating a poly-alkylated aromatic compound, a feed comprising at least one poly-alkylated aromatic compound selected from polypropylbenzene, polybutylbenzene, and polycyclohexylbenzene is introduced into a reaction zone. The feed is then contacted in the reaction zone with an acid catalyst under conditions effective to dealkylate at least a portion of the poly-alkylated aromatic compound and produce a first reaction product comprising at least one mono-alkylated aromatic compound.