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 disclosure provides a method that embodies a simple and effective route to remove homogeneous catalysts from solutions wherein NMR/MRI signal amplification by reversible exchange (SABRE) or parahydrogen-induced polarization (PHIP) is performed. A method for recovering a homogeneous SABRE/PHIP catalyst for reuse is also described.

The present disclosure provides a method that embodies a simple and effective route to remove homogeneous catalysts from solutions wherein NMR/MRI signal amplification by reversible exchange (SABRE) or parahydrogen-induced polarization (PHIP) is performed. A method for recovering a homogeneous SABRE/PHIP catalyst for reuse is also described.

A vehicle compartment purification system configured to be capable of executing a regeneration mode of a functional material by a controller, the regeneration mode including a first regeneration step in which the air is flowed through a plurality of cells of a heater element at a flow velocity A for a predetermined time from a start of the regeneration mode, and after the first regeneration step, a second regeneration step in which the air is flowed through the plurality of cells at a flow velocity B and flowed out to the outflow piping; wherein the flow velocity A and the flow velocity B satisfy the flow velocity A<the flow velocity B, provided that a direction from a first end surface to a second end surface of the heater element is regarded as a positive direction, and the flow velocity B is a positive value.

A vehicle compartment purification system configured to be capable of executing a regeneration mode of a functional material by a controller, the regeneration mode including a first regeneration step in which the air is flowed through a plurality of cells of a heater element at a flow velocity A for a predetermined time from a start of the regeneration mode, and after the first regeneration step, a second regeneration step in which the air is flowed through the plurality of cells at a flow velocity B and flowed out to the outflow piping; wherein the flow velocity A and the flow velocity B satisfy the flow velocity A<the flow velocity B, provided that a direction from a first end surface to a second end surface of the heater element is regarded as a positive direction, and the flow velocity B is a positive value.

A method for activating an oxidic fresh hydroprocessing catalyst or the catalytically active material of a spent hydroprocessing catalyst comprising a refractory oxide support and one or more base metals selected from Ni, Co, Mo and W comprises optionally regenerating the catalyst, adjusting an aqueous activating solution, which contains an organic acid, to pH > 3 with an alkaline additive, impregnating the catalytically active material with the pH-adjusted aqueous activating solution, and heat-treating the catalyst at a temperature of 120-450° C.

The present disclosure relates to a catalyst system and a method for its preparation. The catalyst system of the present disclosure comprises a support, a promoter component impregnated in the support, and an active metal component comprising nickel, cobalt, and molybdenum impregnated in the support. In the active metal component the molar mass of molybdenum is greater than the combined molar mass of cobalt and nickel. The catalyst system of the present disclosure is used for upgrading crude bio oil.

In one aspect, the disclosure relates to relates to CO.sub.2-free methods of co-producing hydrogen and solid forms of carbon via methane decomposition. The methods are efficient, self-sustaining, and environmentally sound. In a further aspect, the disclosure relates to recyclable and recoverable catalysts supported by solid forms of carbon and methods for recycling the catalysts. In some aspects, the disclosure relates to catalysts that do not require support by solid forms of carbon. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

A method for regenerating a deNO.sub.x catalyst includes contacting the catalyst with steam at a temperature in the range of from 250 to 390° C. The method also includes reducing the amount of nitrogen oxide components in a process gas stream that includes a) contacting the process gas with a deNO.sub.x catalyst which results in the conversion of nitrogen oxide components as well as a decline in the NO.sub.x conversion over the deNO.sub.x catalyst; and b) regenerating the deNO.sub.x catalyst to improve the NO.sub.x conversion by contacting the deNO.sub.x catalyst with steam at a temperature in the range of from 250 to 390° C.

A method for regenerating a deNO.sub.x catalyst includes contacting the catalyst with steam at a temperature in the range of from 250 to 390° C. The method also includes reducing the amount of nitrogen oxide components in a process gas stream that includes a) contacting the process gas with a deNO.sub.x catalyst which results in the conversion of nitrogen oxide components as well as a decline in the NO.sub.x conversion over the deNO.sub.x catalyst; and b) regenerating the deNO.sub.x catalyst to improve the NO.sub.x conversion by contacting the deNO.sub.x catalyst with steam at a temperature in the range of from 250 to 390° C.