一种关于1，4-丁二醇合成工艺闪蒸废气收集系统
In the 1,4-butanediol synthesis process, a flash waste gas collection system, collection pipeline, gas-liquid separation system, and hydrogen purification system are connected to the BDO discharge tank 2, gas-liquid separation system, and hydrogen purification system through pipelines, thereby achieving gas-liquid separation of waste gas and hydrogen purification, forming a high-purity hydrogen resource recycling system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG MARKORCHEM
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-17
AI Technical Summary
In the 1,4-butanediol synthesis process, flash evaporation waste gas is not effectively recovered and utilized, resulting in resource waste and environmental pollution, and incineration shortens the service life of the flare head.
A flash evaporation waste gas collection system was designed, including a collection pipeline, a gas-liquid separation system, and a hydrogen purification system. The flash evaporation waste gas is collected through these systems and connected to the BDO discharge tank, the gas-liquid separation system, and the hydrogen purification system via pipelines, thereby achieving gas-liquid separation of the waste gas, hydrogen purification, and hydrogen recycling.
By using a gas-liquid separation and hydrogen purification system, and connecting the BDO discharge tank, gas-liquid separation system, and hydrogen purification system via pipelines, the waste gas can be separated into gas and liquid and purified into hydrogen, thus forming a high-purity hydrogen resource recycling system.
Smart Images
Figure CN224506309U_ABST
Abstract
Claims
1. A flash vapor exhaust collection system for a 1,4-butanediol synthesis process, comprising: The system includes a collection pipeline (1), a gas-liquid separation system, and a hydrogen purification system. One end of the collection pipeline (1) is connected to and communicates with the BDO discharge tank (2) of the 1,4-butanediol synthesis system. The other end of the collection pipeline (1) is connected to the inlet of the gas-liquid separation system. The outlet of the gas-liquid separation system is connected to the inlet of the hydrogen purification system via a pipeline. The outlet of the hydrogen purification system is connected to a circulation pipeline (3), which is connected to and communicates with the BDO reactor (4) of the 1,4-butanediol synthesis system.
2. A flash vapor exhaust collection system for a 1,4-butanediol synthesis process according to claim 1, wherein: The collection pipeline (1) is equipped with a flow control valve.
3. A flash vapor exhaust collection system for a 1,4-butanediol synthesis process according to claim 1, wherein: The gas-liquid separation system includes a primary separation device (51), a compression device (52), and a secondary separation device (53). The inlet of the primary separation device (51) is connected to the other end of the collection pipeline (1) via a pipeline. The outlet of the primary separation device (51) is connected to the inlet of the compression device (52) via a pipeline. The outlet of the compression device (52) is connected to the inlet of the secondary separation device (53) via a pipeline. The outlet of the secondary separation device (53) is connected to the inlet of the hydrogen purification system via a pipeline.
4. A flash vapor exhaust collection system for a 1,4-butanediol synthesis process according to claim 3, wherein: The primary separation device (51) is a shell-and-tube heat exchanger. The tube side inlet and tube side outlet of the primary separation device (51) constitute its inlet and outlet, respectively. The shell side inlet and shell side outlet of the primary separation device (51) are respectively connected to the ambient temperature circulating water pipeline.
5. A flash vapor exhaust collection system for a 1,4-butanediol synthesis process according to claim 3, wherein: The compression device (52) is a reciprocating compressor.
6. A flash waste gas collection system for the 1,4-butanediol synthesis process according to claim 3, characterized in that: The secondary separation device (53) is a shell-and-tube heat exchanger. The tube side inlet and tube side outlet of the secondary separation device (53) constitute its inlet and outlet, respectively. The shell side inlet and shell side outlet of the secondary separation device (53) are connected to the chilled water pipeline, respectively.
7. A flash vapor exhaust collection system for a 1,4-butanediol synthesis process according to claim 1, wherein: The hydrogen purification system is a PSA (Pressure Swing Adsorption) system.
8. A flash vapor exhaust collection system for a 1,4-butanediol synthesis process according to any one of claims 1 to 7, characterized in that: The circulation pipeline (3) is equipped with a buffer tank (6), and the inlet and outlet of the buffer tank (6) are respectively equipped with control valves.
9. A process flash off gas collection system for 1,4-butanediol synthesis according to claim 8, wherein: A hydrogen compression system (7) is provided on the pipe section connecting the buffer tank (6) and the BDO reactor (4).
10. A flash vapor exhaust collection system for a 1,4-butanediol synthesis process according to claim 9, wherein: A pressure gauge is installed on the pipe section connecting the hydrogen compression system (7) and the BDO reactor (4).