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This paper systematically reviews the concept of green methanol fuel, and conducts a comparative analysis of the main manufacturing technology paths, emission reduction potential, as well as the advantages and disadvantages for the major routes, including the biomass path, the electricity−based path and the electricity−biomass coupling path, etc. We summarize the relevant policies on methanol fuel for the water transportation industry at the national and industry levels, clearly stating to promote the pilot application of methanol fuel in coastal and inland river vessels, and to accelerate the construction of methanol refueling stations, storage facilities and other supporting facilities. A review has been conducted of the current green methanol−related standards in China, including guidelines for methanol fuel for ships and group standards focusing on the evaluation of green methanol and the carbon footprint assessment of green methanol products. Related policies and standards are still in the initial stage. At the same time, based on the low−emission analysis platform LEAP, a comprehensive assessment model for carbon emissions prediction of China's water transportation industry is constructed to quantitatively calculate the total energy consumption and carbon emissions of China's water transportation industry in the medium and long term. It is estimated that the total energy consumption will be about 58~85 million tce, and the total emissions will decrease to 30~120 million tons CO2. Based on the above analysis, suggestions for the future development of marine green methanol fuel industry in China are proposed, including: continuously tracking and deeply participating in the IMO’s negotiations on the net−zero framework and related rules construction; combining the internal and external water industry advantages to conduct in−depth quantitative research on the dual−carbon transformation path of the water industry; and taking the lead through trials and experiments, step by step to systematically promote the development of green methanol in China.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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