A recyclable ceramic catalyst filter, a filtering system including the same, and a method of managing the filtering system are provided. The ceramic catalyst filter has a monolithic structure including a first surface which blocks a first material; and a second surface which removes a second material that passed through the first surface, where the second surface is activated and operates as a catalyst layer which removes the second material in response to energy supplied to the second surface.

There are provided methods of treating a catalyst-containing reactor system with a liquid solvent to remove contaminants from the reactor system. An exemplary method includes the steps of: isolating the reactor system to be treated from upstream and downstream equipment; reducing the temperature and pressure of the isolated reactor system by flushing with a hydrogen rich gas; injecting a non-aqueous liquid solvent into the reactor system at an injection point while continuously flowing hydrogen-rich gas through the reactor system; maintaining the solvent in a liquid state while flowing the solvent continuously through the reactor system; and terminating the step of injecting solvent and terminating the continuous flowing of hydrogen-rich gas. The exemplary method is free of the injecting of a carrier gas into the reactor system comprising alkanes selected from the methane, ethane, propane, butane and pentane.

Disclosed is a method of treating spent equilibrium catalyst (ECAT) for reuse, in which a quantity of spent ECAT comprising hydrophilic particles with differing levels of metal contamination is disposed into a reactor and treated to form carbon nanotubes on the particles having metal contamination, thereby rendering at least a portion of the spent ECAT particles hydrophobic; the hydrophobic particles can then be separated from the hydrophilic particles. Also disclosed is a method of remediating an oil spill using a carbon nanotube sponge material.

Disclosed is a method of treating spent equilibrium catalyst (ECAT) for reuse, in which a quantity of spent ECAT comprising hydrophilic particles with differing levels of metal contamination is disposed into a reactor and treated to form carbon nanotubes on the particles having metal contamination, thereby rendering at least a portion of the spent ECAT particles hydrophobic; the hydrophobic particles can then be separated from the hydrophilic particles. Also disclosed is a method of remediating an oil spill using a carbon nanotube sponge material.

Honeycomb bodies and methods for treating a honeycomb bodies that include a skin surrounding a matrix of cells, the skin and the matrix of cells comprising a porous inorganic material. Methods include applying a buffer solution to only the porous inorganic material of the skin and coating the porous inorganic material of the skin with an oxide slurry. The oxide slurry includes an oxide or a precursor of the oxide configured to increase the isostatic strength of the honeycomb body. After treatment, the honeycomb body may be dried.

The present invention provides a regeneration method and a regeneration device of a poisoning honeycomb catalyst, and belongs to the field of catalyst regeneration. The regeneration method of the poisoning honeycomb catalyst provided by the present invention includes the following steps: carrying out microwave heating treatment on the poisoning honeycomb catalyst, and then spraying liquid nitrogen into cells of the poisoning honeycomb catalyst so that the poisoning honeycomb catalyst is regenerated. The regeneration method provided by the present invention is simple, and the efficiency of the regenerated catalyst can be increased by 90% more than the original efficiency. According to the regeneration device of a poisoning honeycomb catalyst provided by the present invention, the catalyst regeneration is carried out by using the regeneration device provided by the present invention, the regeneration operation is simple, and the catalytic efficiency of the regenerated catalyst is improved.

The present invention provides a regeneration method and a regeneration device of a poisoning honeycomb catalyst, and belongs to the field of catalyst regeneration. The regeneration method of the poisoning honeycomb catalyst provided by the present invention includes the following steps: carrying out microwave heating treatment on the poisoning honeycomb catalyst, and then spraying liquid nitrogen into cells of the poisoning honeycomb catalyst so that the poisoning honeycomb catalyst is regenerated. The regeneration method provided by the present invention is simple, and the efficiency of the regenerated catalyst can be increased by 90% more than the original efficiency. According to the regeneration device of a poisoning honeycomb catalyst provided by the present invention, the catalyst regeneration is carried out by using the regeneration device provided by the present invention, the regeneration operation is simple, and the catalytic efficiency of the regenerated catalyst is improved.

The disclosure provides a short-process separation system for separating ionic liquid from alkylation reaction effluent, comprising an alkylation reactor, an ionic liquid storage tank, a primary coalescence separator, a secondary coalescence separator, a flash tank, a low-temperature fine coalescence separator and a fractionating tower that are linked in order. The inlet of the ionic liquid storage tank communicates with the bottom flow ports of the primary coalescence separator, the secondary coalescence separator and the low-temperature fine coalescence separator through delivery lines, and the outlet of the ionic liquid storage tank communicates with the return port of the alkylation reactor through a delivery pump. The alkylated oil collected from this system has a high degree of cleanliness, and can be used directly as a component for formulating clean gasoline. The ionic liquid catalyst collected therefrom may be directly returned to the alkylation reactor for cycle use.

The disclosure provides a short-process separation system for separating ionic liquid from alkylation reaction effluent, comprising an alkylation reactor, an ionic liquid storage tank, a primary coalescence separator, a secondary coalescence separator, a flash tank, a low-temperature fine coalescence separator and a fractionating tower that are linked in order. The inlet of the ionic liquid storage tank communicates with the bottom flow ports of the primary coalescence separator, the secondary coalescence separator and the low-temperature fine coalescence separator through delivery lines, and the outlet of the ionic liquid storage tank communicates with the return port of the alkylation reactor through a delivery pump. The alkylated oil collected from this system has a high degree of cleanliness, and can be used directly as a component for formulating clean gasoline. The ionic liquid catalyst collected therefrom may be directly returned to the alkylation reactor for cycle use.

A combustion system operated at low cost is provided. A combustion system 1 includes a combustion device 10 that burns fuel, an exhaust line L1 through which exhaust gas flows, the exhaust gas being generated through combustion of the fuel in the combustion device 10, an air preheater 30 that is disposed in the exhaust line L1 and that recovers heat from the exhaust gas, and a denitration device 40 that is disposed in the exhaust line L1 and that removes nitrogen oxide from the exhaust gas using a denitration catalyst. The denitration device 40 is disposed downstream from the air preheater 30 in the exhaust line L1, and the denitration catalyst contains 43 wt % or more of vanadium pentoxide and has a BET specific surface area of 30 m.sup.2/g or more.