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.

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.

The invention pertains to a device for determination of a catalyst state in a chemical reactor and to a method for detecting a catalyst state under in situ reaction conditions. A reactor is provided with a solid catalyst provided in a reactor chamber. A fluid sample is taken from the reactor chamber and is transferred to a sample chamber. The temperature at the extraction site of the sample in the reactor chamber is determined and the temperature of the sample chamber is adjusted to the same temperature. A small amount of the catalyst provided in reactor chamber is provided in sample chamber and is contacted with the sample flow. Spectroscopic information is then obtained on the catalyst provided in sample cell, e.g. by an IR spectrometer.

The invention pertains to a device for determination of a catalyst state in a chemical reactor and to a method for detecting a catalyst state under in situ reaction conditions. A reactor is provided with a solid catalyst provided in a reactor chamber. A fluid sample is taken from the reactor chamber and is transferred to a sample chamber. The temperature at the extraction site of the sample in the reactor chamber is determined and the temperature of the sample chamber is adjusted to the same temperature. A small amount of the catalyst provided in reactor chamber is provided in sample chamber and is contacted with the sample flow. Spectroscopic information is then obtained on the catalyst provided in sample cell, e.g. by an IR spectrometer.

Provided are a composite structure, in which metal nanoparticle-perovskite oxide is bound to metal oxide supports (i.e., sensing materials), and a preparation method thereof. The composite structure has improved durability, in which metal nanoparticles uniform in size are evenly distributed on the surface of perovskite oxide. Provided is also a high-performance gas sensor having excellent target gas detection performances by including the composite structure.

Provided are a composite structure, in which metal nanoparticle-perovskite oxide is bound to metal oxide supports (i.e., sensing materials), and a preparation method thereof. The composite structure has improved durability, in which metal nanoparticles uniform in size are evenly distributed on the surface of perovskite oxide. Provided is also a high-performance gas sensor having excellent target gas detection performances by including the composite structure.

A method for testing catalysts in a fluidized bed reactor comprises enclosing catalyst material in capsules having pores or holes smaller than the catalyst material, inserting the capsules filled with catalyst material to into a port of the fluidized bed reactor and recovering at least a portion of the catalyst capsules from the fluidized bed reactor after use through an additional port of the fluidized bed reactor, wherein the capsules move with a flow of uplifted fluid and gas in the fluidized bed reactor.

A method for testing catalysts in a fluidized bed reactor comprises enclosing catalyst material in capsules having pores or holes smaller than the catalyst material, inserting the capsules filled with catalyst material to into a port of the fluidized bed reactor and recovering at least a portion of the catalyst capsules from the fluidized bed reactor after use through an additional port of the fluidized bed reactor, wherein the capsules move with a flow of uplifted fluid and gas in the fluidized bed reactor.

This productivity evaluation method is for evaluating productivity of a chemical substance in a process comprising a first step of obtaining gas from a waste material and a second step of synthesizing a chemical substance from the gas obtained in the first step in the presence of a catalyst, said method including: a first carbon mass calculation stage of calculating mass of carbon contained in the waste material, a second carbon mass calculation stage of calculating mass of carbon contained in the chemical substance produced in said process, and a productivity evaluation stage of evaluating the productivity of the chemical substance based on values of the mass of carbon which are calculated in the first carbon mass calculation stage and the second carbon mass calculation stage.

This productivity evaluation method is for evaluating productivity of a chemical substance in a process comprising a first step of obtaining gas from a waste material and a second step of synthesizing a chemical substance from the gas obtained in the first step in the presence of a catalyst, said method including: a first carbon mass calculation stage of calculating mass of carbon contained in the waste material, a second carbon mass calculation stage of calculating mass of carbon contained in the chemical substance produced in said process, and a productivity evaluation stage of evaluating the productivity of the chemical substance based on values of the mass of carbon which are calculated in the first carbon mass calculation stage and the second carbon mass calculation stage.