The present invention relates to a method for preparing ZSM-5 zeolite. The present invention can provide a method for preparing ZSM-5 zeolite comprising the steps of: preparing a first solution in a solution state by heating a mixture comprising a silica source, an alumina source, a neutralizing agent and a crystalline ZSM-5 nucleus; preparing a reaction mother liquid by mixing a second solution comprising salts into the first solution; and continuously crystallizing by continuously supplying the reaction mother liquid to a hydrothermal synthesis reactor, wherein formula [1] below is satisfied.

0.20≤W.sub.a/W.sub.b≤0.40  Formula [1]

A reactor system for conducting multiple continuous reactions in parallel may include a preheating unit that includes an outer preheater shell and a plurality of heating tubes disposed within the preheating shell and arranged in parallel. The reactor system may include a reactor unit downstream of the preheating unit, the reactor unit comprising a plurality of reactor tubes disposed within a reactor shell and an outer heating element disposed about the reactor shell. An inlet end of at least one of the reactor tubes may be fluidly coupled to at least one of the heating tubes of the preheating unit. The reactor unit may include a multi-chamber separator downstream of the reactor unit, the multi-chamber separator having a plurality of separation chambers. At least one of the separation chambers may be fluidly coupled to at least one of the reactor tubes.

The invention relates to an integrated process for assessing one or more properties of a catalyst. In the method, a standard chemical reactor or reactors is/are provided, and a bypass means is also provided, to transport a sample of whatever is added to the industrial reactor, to the test reactor. Both gases and liquids are transferred to the test reactor.

Gas streams may be effectively processed using microwave energy in such a way as to significantly reduce processing cost and plant complexity. In the first instance, microwave energy is used to generate a self-catalytic, non-equilibrium plasma, resulting in essentially complete gas reaction at industrial scales of operation. In the second instance, microwave energy is used in combination with conventional catalyst materials to significantly enhance their performance by enabling operation at reduced gas temperatures. In this second instance, the microwave energy may be used either to generate a non-equilibrium plasma or to selectively and directly heat the catalyst material.

Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed.

The present invention relates to a method of catalytic process characterization which comprises a reaction system having two or more reaction strands in a parallel arrangement, wherein an individual reaction strand comprises multiple series-connected reaction chambers or a single reaction chamber. In the method, which is also referred to as CPC method, each reaction strand is supplied with a reactant stream. The reactant streams supplied to the reaction strands are subjected to different numbers of process stages in the different reaction strands. The product streams discharged from the reaction strands are subjected to an analytical characterization, wherein the data achieved in the characterization are expressed in relative terms, here preferably including the forming of a difference. The CPC method can be used in a very versatile manner and is characterized by very high accuracy. The mass balance achieves a standard deviation of +/10% by weight or lower. Furthermore, the invention relates to an apparatus for performing the CPC method or else to an apparatus for simultaneously performing a multitude of CPC methods. The invention thus also relates to the field of high-throughput research.

A multi-channel direct-deposit assembly method is disclosed to high-throughput synthesize three-dimensional macroporous/mesoporous (3DMM) material array with precisely controlled composition, pore size, and pore structure. The macropore size of the synthesized 3DMM material is in the range of 50-1000 nm; the mesopore size of the synthesized 3DMM material is in the range of 1-50 nm. The surface area of the 3DMM material is in the range of 20-1000 m.sup.2/g. The 3DMM material array can be used for rapid synthesis, screening and manufacture of catalysts and nanosensors.

An apparatus and a method are used for investigating the naphtha reforming process in catalyst test devices with reactors arranged in parallel. The apparatus has a plurality of reactors arranged in parallel with reaction chambers (R1, R2, . . . ), a product fluid supply, a process control, and at least one analysis unit. Each individual reactor has an outlet line for the product fluid stream, wherein the analysis unit is operatively connected to each outlet line for the product fluid stream and the apparatus is functionally connected to the control of the apparatus. In carrying out the method, naphtha-containing reactant fluid streams are brought into contact with catalysts in the individual reactors and the product fluid streams are subsequently supplied to the online analysis unit from the respective outlet lines of the individual reactors and analyzed. Using the evaluation of the online analytical characterization data, the process parameters of the respective reactor unit are adapted. The process steps of analytical characterization, evaluation, and adaptation of process parameters are repeated for the duration of the investigation.

The invention relates to a flow element for transferring fluids comprising a capillary cartridge (1) having an integrated capillary line (3). The capillary cartridge according to the invention (1) has a ring-shaped channel (8) and securing grooves (6, 6), wherein the flow element is characterized in that the capillary line (3) is arranged in the ring-shaped channel (8). The ends of the capillary lines (3) are connected to connection elements (9) in which securing grooves (6, 6) are secured in a positive locking manner. The flow elements according to the invention contribute toward improved manageability and effectiveness of components. In a preferred embodiment, the flow elements are used as a distribution system in the form of a plurality of capillary cartridges (1-1, 1-2, . . . ). Such distribution systems are of technical importance in the field of catalyst testing apparatuses with reactors arranged in parallel.

Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed.