一种甲醇合成发电和制冷联合装置
By designing a combined methanol synthesis power generation and refrigeration unit, the energy waste problem in the methanol synthesis process is solved by utilizing the heat of reaction to heat boiler water to generate electricity and low-temperature cooling energy, thereby improving the operating efficiency of the unit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOPEC NANJING ENG & CONSTR
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-17
AI Technical Summary
In coal chemical plants, the heat generated during methanol synthesis is difficult to utilize effectively, resulting in the boiler feedwater consuming a large amount of medium and low-pressure saturated steam, which cannot be connected to the steam network, causing energy waste and high energy consumption.
Design a methanol synthesis power generation and refrigeration combined unit. By combining a gas-cooled reactor, a circulating gas heat exchanger, a water-cooled methanol reactor, an ORC turbine power generation system and a refrigeration cycle system, the by-product electricity and low-temperature cooling energy of the methanol synthesis reaction heat boiler water are generated, avoiding the difficulty of integrating the by-product saturated steam into the steam pipeline network.
This technology effectively utilizes the heat of methanol synthesis reaction, by-product electricity, and low-temperature cooling, thereby improving the efficiency of the unit's operation, avoiding energy waste, and reducing energy consumption.
Smart Images
Figure CN224515243U_ABST
Abstract
Claims
1. A combined methanol synthesis power and refrigeration plant characterized by: The device includes an air-cooled reactor (1), and a synthesis gas output pipeline from outside the boundary is connected to a circulating gas heat exchanger (2) through the air-cooled reactor (1). The output end of the circulating gas heat exchanger (2) is connected to a No. 1 water-cooled methanol reactor (3) and a No. 2 water-cooled methanol reactor (4) respectively. The output ends of the top of the No. 1 water-cooled methanol reactor (3) and the No. 2 water-cooled methanol reactor (4) are connected to the cooling system in sequence through the circulating gas heat exchanger (2) and the air-cooled reactor (1).
2. The combined methanol synthesis power and refrigeration plant of claim 1, wherein: The output end of the preheater (505) is connected to the regenerator (601), and the output end of the regenerator (601) is connected to the No. 1 water-cooled methanol reactor (3) and the No. 2 water-cooled methanol reactor (4), respectively.
3. The combined methanol synthesis power and refrigeration plant of claim 2, wherein: The regenerator (601) also has an output end connected to the refrigerant heat exchanger (603) via the second condenser (602), which is connected in sequence via the second evaporator (604), the refrigerant heat exchanger (603), the absorber (605), the solution circulation pump (606), and the solution heat exchanger (607).
4. The combined methanol synthesis power and refrigeration plant of claim 3, wherein: The output end of the solution heat exchanger (607) is connected to the regenerator (601), and the output end of the bottom of the regenerator (601) is connected to the absorber (605) through the solution heat exchanger (607).
5. The combined methanol synthesis power and refrigeration plant of claim 1 wherein: The bottom outputs of the No. 1 water-cooled methanol reactor (3) and the No. 2 water-cooled methanol reactor (4) are both connected to the superheater (501). The output of the circulating working fluid pipeline of the superheater (501) is connected to the first condenser (503), the circulating working fluid pump (504), the preheater (505), the first evaporator (506) and the superheater (501) in sequence through the turbine generator (502).
6. The combined methanol synthesis power and refrigeration plant of claim 5, wherein: The superheater (501) also has an output end that is connected to the regenerator (601) via the first evaporator (506), the preheater (505).