纯生物质低压高温蒸汽气化合成绿色甲醇的装置
By employing a low-pressure, high-temperature steam gasification process and modular design, the problems of high tar content and low activated carbon recovery efficiency in existing biomass gasification technologies have been solved, enabling the synthesis of high-purity methanol and the production of activated carbon by-products, thereby reducing the cost of methanol production and minimizing environmental pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HANBO ENERGY EQUIP CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing biomass gasification technologies mostly employ high-pressure or medium-temperature conditions, resulting in high tar content, nitrogen dilution of syngas, low gas production efficiency, and failure to achieve efficient recovery of activated carbon byproducts, thus increasing the cost of methanol production.
The process employs a low-pressure, high-temperature steam gasification process, combining a low-pressure, high-temperature steam supply module with a fluidized bed gasifier to generate syngas. Impurities are removed through multi-stage cyclone separation and a water washing tower, and finally, high-purity methanol is synthesized under a copper-based catalyst. The efficient recovery of activated carbon is achieved through a skid-mounted modular design and a staged separation technology.
It achieves low tar content, high syngas purity, and high carbon conversion rate, reducing methanol production costs and generating high-value activated carbon by-products. Moreover, the entire process is environmentally friendly with no wastewater or waste gas emissions.
Smart Images
Figure CN224507058U_ABST
Abstract
Claims
1. A device for synthesizing green methanol by pure biomass low-pressure high-temperature steam gasification, characterized in that, It includes a raw material pretreatment module, a gasification module, a syngas washing module, a syngas primary pressurization module, an MDEA desulfurization and decarbonization module, a secondary pressurization module, a methanol synthesis module, a methanol distillation module, and a methanol storage module, which are connected in sequence.
2. The device for pure biomass low-pressure high-temperature steam gasification synthesis of green methanol according to claim 1, characterized in that, The gasification module is connected to a low-pressure, high-temperature steam supply module.
3. The device for pure biomass low-pressure high-temperature steam gasification synthesis of green methanol according to claim 1, characterized in that, The raw material pretreatment module includes a crusher, a dryer, and a screw feeder.
4. The pure biomass low pressure high temperature steam gasification synthesis green methanol device according to claim 1, characterized in that, The gasification module includes a fluidized bed gasifier, a cyclone separator, and an activated carbon collector.
5. The pure biomass low pressure high temperature steam gasification synthesis green methanol device according to claim 1, characterized in that, The syngas scrubbing module includes a water scrubbing tower and a gas-liquid separator.
6. The pure biomass low pressure high temperature steam gasification synthesis green methanol device according to claim 1, characterized in that, The methanol synthesis module includes a synthesis tower, a water cooler, and a gas-liquid separator.
7. The apparatus for synthesizing green methanol by low-pressure high-temperature steam gasification of pure biomass according to claim 1, characterized in that, The methanol distillation module includes a pre-distillation column, a pressurized distillation column, and an atmospheric distillation column.