Mto plant tail gas tail liquid recovery system
By designing a tail gas and tail liquid recovery system, propylene and butene are separated using a separation tank and a collection tank, and the propylene compressor in the MTO unit is used as a refrigerant. This solves the problem of resource waste and environmental pollution caused by the direct combustion of tail gas and tail liquid, and achieves efficient recovery and cost savings.
CN224370958UActive Publication Date: 2026-06-19LIAOCHENG MEIWU NEW MATERIAL SCI & TECHCO
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Patent Information
- Application Number
- CN202521209972.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-19
- Estimated Expiration
- 2035-06-13
AI Technical Summary
Technical Problem
In MTO units, exhaust gas and tail liquid are directly sent to the flare system for combustion, resulting in resource waste and environmental pollution.
Method used
Design a tail gas and tail liquid recovery system, including a tail gas collection pipe, a cooler, a separator, a collection tank, and a propylene compressor. The separator and collection tank separate and recover propylene and butene in the tail gas, and the propylene compressor is used as the refrigeration medium to avoid the use of additional refrigeration equipment.
Benefits of technology
It achieves efficient recovery of propylene and butene from exhaust gas, saving resources and costs, and reducing environmental pollution.
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Smart Images
Figure CN224370958U_ABST
Abstract
The utility model relates to MTO device technical field, concretely is a kind of MTO device tail gas tail liquid recovery system, including tail gas collecting pipe, the medium one import of cooler is connected to the tail gas collecting pipe, the import of separating tank is connected by pipeline to the medium one export of cooler, separating tank is provided with wire mesh demister, and separating tank top is connected with flare system by exhaust pipe;The outlet of separating tank is connected with collecting tank by pipeline one;The bottom of collecting tank is connected with recovery pump by pipeline, and the top of collecting tank is connected with flare system by exhaust pipe;Separating tank and collecting tank are set, propylene, butylene in tail gas can be separated and recycled, other gases in tail gas are discharged, waste is avoided.
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