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Resourceful treatment system and process capable of being used for high-nitrogen-content waste gas

A treatment system and resource recovery technology, applied in the resource treatment system and process field of high nitrogen-containing waste gas, can solve the problem of difficult separation of mixed gases

Pending Publication Date: 2020-10-23
JINAN TORCH CREATION ENERGY SCI & TECH
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Problems solved by technology

[0003] But the H after ammonia decomposition 2 , N 2 The mixed gas is difficult to separate, which has become an important factor restricting the resource utilization of crude ammonia tail gas

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  • Resourceful treatment system and process capable of being used for high-nitrogen-content waste gas

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Embodiment Construction

[0029] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] see figure 1 , figure 1 It is a schematic diagram of a resource treatment system that can be used for high nitrogen-containing waste gas in an embodiment of the present invention. The system is mainly composed of a decomposition gas buffer tank 101, a decomposition gas purification reactor A 102, a decomposition gas purification reactor B 103, a pressurized Front buffer tank 104, mixed gas pressurization system 105, post-pr...

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Abstract

The invention discloses a resourceful treatment system and process capable of being used for high-nitrogen-content waste gas. The system comprises a decomposed gas purification boundary region, a mixed gas pressurization boundary region and a hydrogen purification reaction boundary region which are connected in sequence; according to the process, moisture and residual ammonia gas in decomposed gasare removed through a decomposed gas purification reactor in the decomposed gas purification boundary region; and the pressure of the mixed gas is increased to the pressure meeting the requirements of the hydrogen purification reaction boundary region through a mixed gas pressurization system of the mixed gas pressurization boundary region, a high-purity H2 product is produced through a hydrogenpurification reactor of the hydrogen purification reaction boundary region, and a byproduct N2 product is produced. According to the system and the process disclosed by the invention, the H2 product with the purity of 99.99% can be produced; a byproduct N2 product can be used for regeneration of a nitrogen-containing waste gas purification adsorbent, the hydrogen purification section realizes overall continuous automatic operation on H2 purification through serialization control, the hydrogen yield is high, and H2 dead volume resources are fully recycled through three times of pressure equalization.

Description

technical field [0001] The invention relates to the technical field of recycling nitrogen-containing waste gas, in particular to a recycling treatment system and process for high-nitrogen-containing waste gas. Background technique [0002] In many coal chemical or petrochemical process chains in China, such as the comprehensive utilization of tar and low-carbon alkanes, crude ammonia tail gas is often produced, and NH in the tail gas 3 The content is very high (up to 98.95%), and has high resource value. [0003] But the H after ammonia decomposition 2 , N 2 The mixed gas is difficult to separate, which has become an important factor restricting the resource utilization of crude ammonia tail gas. Contents of the invention [0004] In order to solve the above problems, the present invention proposes a resource treatment system and process that can be used for high nitrogen-containing waste gas, and realizes high-purity H 2 Recycling and by-product N 2 , the hydrogen pu...

Claims

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Application Information

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IPC IPC(8): C01B3/56C01B21/04
CPCC01B3/56C01B21/0455C01P2006/80C01B2210/0062C01B2210/0065
Inventor 杜建吉靳庆麦季哲张蕴郑辉房会伟杜建芳
Owner JINAN TORCH CREATION ENERGY SCI & TECH