Composite purification system for removing sulfur, water and carbon dioxide contained in oilfield associated gas
By using a purification system combining two absorption towers and a molecular sieve with a compressor in associated gas from oilfields, the high cost and mobility issues of oilfield vent gas recovery and utilization have been solved, achieving low-cost, high-efficiency purification and facilitating flexible use.
CN224331834UActive Publication Date: 2026-06-09HANGZHOU HONGZE NEW ENERGY CO LTD
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Patent Information
- Application Number
- CN202520611486.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-06-09
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Technical Problem
Existing technologies for recovering and utilizing vented air from oil fields suffer from high investment costs, poor economic efficiency, and difficulty in relocation, leading to resource waste and environmental pollution.
Method used
The system employs a two-absorption tower structure, using 13X molecular sieve and 4A molecular sieve respectively for desulfurization, decarbonization and dehydration of associated gas from oil fields. Combined with a compressor and nitrogen regeneration system, it achieves easy-to-move purification treatment.
Benefits of technology
It achieves low-cost and efficient associated gas purification in oilfields, reduces resource waste and environmental pollution, improves economic efficiency, and is easy to move and use flexibly.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to a composite purification system for removing sulfur, water and carbon dioxide contained in oilfield associated gas. The device comprises an oilfield associated gas input pipe, and is characterized by further comprising a first absorption tower, a second absorption tower, a compressor, a nitrogen gas source and a heater, 13X molecular sieves and 4A molecular sieves are arranged in the first absorption tower and the second absorption tower, and the compressor is mounted on the oilfield associated gas input pipe; the two ends of the first input pipe are connected to the top of the first absorption tower and the oil field associated gas input pipe respectively, the first valve is installed on the first input pipe, one end of the first blow-down pipe is connected to the first input pipe and is close to the top of the first absorption tower, and the second valve is installed on the first blow-down pipe. The first output pipe is connected to the bottom of the first absorption tower, the sixth valve is installed on the first output pipe, the nitrogen input pipe is connected with the nitrogen source, and the heater is installed on the nitrogen input pipe and close to the nitrogen source. The device is simple in structure, low in cost and convenient to move.
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