Split type methane oxidation-denitrification reactor and method thereof

Abstract

The invention discloses a partitioned methane oxidation-denitrification reactor and a method thereof. A cover plate is arranged at top of the reactor, a separator plate is arranged at the center of the cover plate and divides the reactor into two parts. A left side of the reactor is a methane zone, a water inlet pipe is arranged at center of 1 / 3 part of the left side of the cover plate close to the separator plate, a methane air inlet pipe is arranged at the left side of the water inlet pipe, and a methane zone water outlet pipe is arranged at the right side of the water inlet pipe. A methane discharger is arranged at center of 1 / 3 part of the left side of the cover plate close to the edge. An aeration head is arranged at bottom center of the left side of the reactor and is connected to the methane air inlet pipe. An oxygen zone is arranged at the right side of the reactor, an oxygen air inlet pipe, the aeration head, an oxygen discharger and an oxygen zone water outlet pipe are arranged, and are symmetrically distributed to each corresponding structure at the left side by taking the separator plate as a symmetrical plane. According the invention, independent supply of methane and oxygen can be realized, and the blast risk brought by mixing supply can be avoided. Simultaneously, the methane proportion in the outlet gas from the methane zone can be increased by more than 75%, and the outlet gas can be taken as a fuel; methane proportion in the outlet gas from the oxygen zone is lower than blast limitation, and then the outlet gas can be directly discharged.

Description

technical field [0001] The invention relates to a methane oxidation-denitrification reactor, in particular to a segmented methane oxidation-denitrification reactor and a method thereof. Background technique [0002] Methane (CH 4 ) is a second only to CO 2 important greenhouse gas, whose global warming potential is CO 2 20 to 30 times that of the greenhouse effect, and its comprehensive contribution to the greenhouse effect is as high as 22%. According to IPCC estimates, the total global methane emissions in 2000 were 3×10 11 kg. What is alarming is that the average annual methane emission has a tendency to increase year by year. Therefore, effectively reducing methane emissions plays a pivotal role in curbing global warming. In addition, methane is a clean energy source with high calorific value and a novel gaseous carbon source. Therefore, converting methane, the second largest "culprit" of global warming, into clean energy or a novel gaseous carbon source, meets th...

AI Technical Summary

Problems solved by technology

However, this technology has not been able to achieve large-scale application so far.

The main reasons are as follows: 1) The solubility of methane in water is very low, and the utilization rate of methane supplied is very low, resulting in the actual supply far greater than the theoretical supply

While reducing the economics of this technology, it also emits a large amount of unused greenhouse gas methane to the environment, reducing the environmental benefits of this technology

2) Methane is not used as a direct carbon source, but is oxidized to organic substances such as methanol and formic acid for reuse

During the overflow process, the unused methane cannot be reused as energy due to its low methane content, and there is a risk of explosion

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