Oxidation device containing combined porous medium charge and loading method thereof

Abstract

The invention belongs to the technical field of coal mine gas treatment, and relates to an oxidation device containing a combined porous medium charge and a loading method thereof. The oxidation device includes a regenerative incinerator, a fan and a chimney. Air inlet chambers under a first heat storage body and a second heat storage body are correspondingly communicated with the fan through airinlet pipes with air inlet valves, the first heat storage body and the second heat storage body are provided with , in order from bottom to top, a water absorbing layer filled with a water absorbing material, a heat storage layer filled with an inert heat storage filler, and a catalytic coating for uniformly dispersing the catalyst in the heat storage filler. The upper part of a regenerative incinerator is provided with a combustion chamber which is provided with a burner, and a flue gas passage is arranged above the combustion chamber. The oxidation device containing the combined porous medium charge and the loading method thereof solve the problem that all the inertia fillers in the heat storage body are filled in the prior art, and the water vapor in the coal mine gas is easily enteredinto the heat storage body, the catalytic efficiency of the catalyst in the heat storage body is reduced, and the effect of purifying the coal mine gas and the heat energy recovery effect are reduced.

Description

technical field [0001] The invention belongs to the technical field of coal mine gas treatment, and relates to an oxidation device with a combined porous medium filling and a filling method thereof. Background technique [0002] Coal mine gas (also known as "coalbed methane") is an unconventional natural gas that exists in the coal seam and its surrounding rocks, exists in an adsorbed or free state, and mainly consists of methane. my country is rich in coalbed methane resources. According to a new round of resource evaluation, my country's coalbed methane resources at depths below 2,000 meters are about 36.81 trillion cubic meters, equivalent to 49 billion tons of standard coal, ranking third in the world. However, the reality that cannot be ignored in the current development of my country's coalbed methane development industry is that the gas production of a single coalbed methane well is too low, the economic benefits are low, and the industry is facing difficulties. Coal...

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Problems solved by technology

[0005] In view of this, in order to solve the problem that all the regenerators in the prior art are filled with inert fillers, the water vapor in the coal mine gas can easily enter the regenerator, reduce the catalytic efficiency of the catalyst in the regenerator, and reduce the purification efficiency and To solve the problem of heat energy recovery effect, an oxidation device with combined porous media filling and its filling method are provided

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