High sulfur-content sewage negative pressure gas stripping desulfurization and sulfur-containing tail gas purifying apparatus and technology thereof

A tail gas purification device and high-sulfur technology, applied in water/sewage treatment, degassed water/sewage treatment, neutralized water/sewage treatment, etc., can solve the problem of large consumption of natural gas or nitrogen chemicals, and operation and maintenance of reinjection systems Problems such as increasing cost and high pressure of reinjection of sulfur-containing wastewater have achieved the effect of reducing energy consumption, labor intensity and high automation
CN108640385AInactive Publication Date: 2018-10-12四川沃兹凯兰科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
四川沃兹凯兰科技有限公司
Publication Date
2018-10-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of a high sulfur-content gas field natural gas exploitation and sulfur-containing sewage processing technology, and concretely relates to a high sulfur-content sewage negative pressure gas stripping desulfurization and sulfur-containing tail gas purifying apparatus and a technology thereof. The high sulfur-content sewage negative pressure gas strippingdesulfurization and sulfur-containing tail gas purifying apparatus comprises a PLC control system, a pH adjusting device, a pretreatment apparatus, a negative pressure gas stripping apparatus, a finedesulphurization apparatus, an oxidative regeneration apparatus, a sulphur separator, and a heat exchange system. The high sulfur-content sewage negative pressure gas stripping desulfurization and sulfur-containing tail gas purifying apparatus and the technology reduce the energy consumption for processing sulfur-containing sewage, increase the separating efficiency of H2S in the sulfur-containingsewage, and can be widely used for sulfur-containing sewage desulphurization treatment in natural gas exploitation and petroleum exploitation.
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Description

technical field

[0001] The invention belongs to the technical field of natural gas development in high-sulfur gas fields and treatment of sulfur-containing sewage, and in particular relates to a negative-pressure air stripping desulfurization and sulfur-containing tail gas purification device and process for highly H2S-containing sewage. Background technique

[0002] The desulfurization treatment process of high-sulfur sewage can be summarized as "positive pressure air stripping-oxidation-flocculation sedimentation three-stage desulfurization + reinjection" process. 300mg / L; Oxidative desulfurization can choose an appropriate oxidant as an oxidative desulfurizer according to the nature of the sewage; Precipitation desulfurization can remove sulfur in low-sulfur sewage to below 5mg / L. The existing process can basically meet the existing desulfurization wastewater reinjection standard, but the "positive pressure gas stripping-oxidation-precipitation three-stage sulfur removal"...

Claims

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