Process information
| Key Data Set Information | |
| Location | CN |
| Geographical representativeness description | 根据中国煤制烯烃产业现 状 |
| Reference year | 2005 |
| Name |
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| Use advice for data set | The Life Cycle Inventory (LCI) data for Coal to Polypropylene includes both foreground and background data. Users should refer to production data from coal-to-olefin enterprises to obtain foreground data, while background data involves consumption of raw materials, materials, energy, and pollutant emissions. The LCI of the coal extraction phase is derived from the Beijing University of Technology database, accounting for a national average loss rate of 15% during the washing and selection process; washing is necessary for raw coal but not for fuel coal. This study applies carbon allocation, where products with higher carbon content have greater allocation coefficients. The functional unit is defined as 1 tonne of coal-based polypropylene product. The study adopts a 'cradle-to-gate' scope, including nine stages (coal mining and washing, coal transportation, auxiliary materials supply, electricity supply, coal gasification, low-temperature methanol washing, methanol production, polyolefin production, and utilities) and excludes infrastructure construction, product packaging, transportation, use, and disposal processes. |
| Technical purpose of product or process | The Coal to Polypropylene (PP) GLLMTP process is designed for industrial production of polypropylene. This process involves a combination of wet and dry feed gasification technologies, such as GE and multi-nozzle coal water slurry gasification for wet feed, and Shell, GSP, and HT-L for dry feed gasification. Methanol synthesis is performed using high-pressure, medium-pressure, or low-pressure methods, ultimately yielding polypropylene through MTO (Methanol-to-Olefins) or MTP (Methanol-to-Propylene) processes. The polypropylene produced is suitable for a wide range of applications, including plastics manufacturing for automotive parts, packaging materials, textiles, and consumer goods. By-products like gasoline and liquefied petroleum gas are also produced. |
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| General comment on data set | There are many technical combinations of coal to polypropylene: according to the feeding method, it can be divided into two categories: wet feed gasification and dry feed gasification. The typical representatives of wet feed gasification are GE and multi nozzle coal water slurry gasification processes, while the typical representatives of dry feed gasification are She11, GSP, HT-L (aerospace powder coal pressurized gasification) processes, etc; The methanol synthesis process can be divided into high-pressure method, medium pressure method, and low-pressure method according to the different synthesis pressures; The methanol to polypropylene process can be divided into MTO process and MTP process based on the different main products. Different process combinations can bring different environmental impacts. The HDDMTO process mainly produces polyethylene and polypropylene, with by-products such as C4+and methyl tert butyl ether (MTBE) |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Time representativeness | |
| Time representativeness description | 煤电化循环经济产业园煤制180万t/a甲醇及转化烯烃项目：可行性研究报告[R]．2005 |
| Technological representativeness | |
| Flow diagram(s) or picture(s) | |
Modelling and validation
Administrative information
Inputs and Outputs