Process information
| Key Data Set Information | |
| Location | DL-LN-CN |
| Geographical representativeness description | Dalian Changxing Island Petrochemical Park |
| Reference year | 2021 |
| Name |
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| Use advice for data set | When utilizing the data set for the industrial process of ethylene production via the naphtha route, users are advised to pay attention to the upstream sourcing of raw materials, such as naphtha, mixed C4, and ethane, which are derived from a refining and chemical project with a global average as a background. Additionally, consider the availability and impact of high-pressure and low-pressure steam, fresh water from the water purification plant, and electricity from the Chinese national grid. The pollutant emissions are to be accounted for according to the petrochemical industry standards. The functional unit for this data set is defined as 1 ton of industrial grade ethylene product, and quality assignment is used in the study. It is crucial to ensure that all factors are properly assessed when applying the data for life cycle analysis to accurately reflect the environmental impact of the process. |
| Technical purpose of product or process | The high purity ethylene produced by Hengli Petrochemical's steam cracking technology is intended for use in a variety of industrial applications such as the production of polymers (e.g., polyethylene, PVC), antifreeze, and solvents. Given its production capacity of 1.5 million tons/year and its critical role as a petrochemical feedstock, this ethylene is suited for large-scale industrial processes within the chemical industry. |
| Classification |
Class name
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Hierarchy level
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| General comment on data set | Hengli Petrochemical Chemical Ethylene Project, 1.5 million tons/year ethylene, steam cracking technology |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Functional Unit | Define 1t of industrial grade ethylene product as a functional unit |
| Time representativeness | |
| Time representativeness description | Not mentioned, replaced by the publication time of the document |
| Technological representativeness | |
| Technology description including background system | A typical steam cracking process is adopted in the model of naphtha route to ethylene. The upstream power source of the ethylene project is the power station of the refining project, which will meet the steam demand of the ethylene project by adjusting steam and power generation, and will not lead to an increase in pollution emissions. The scale of the ethylene plant is 1.5 million tons per year. Assuming that the annual operating time of the process plant is 8000 hours, the steam cracking process includes ethylene steam thermal cracking unit, dry gas recovery unit (abbreviated as ROG), spent alkali oxidation unit (referred to as WAO), pressure swing adsorption Hydrogen production (PSA for short) unit and ethylene cryogenic storage tank area. |
| Flow diagram(s) or picture(s) | |
| Mathematical model | |
| Model description | The naphtha, mixed C4, ethane, etc. involved in the raw materials are all from upstream refining and chemical projects, and the naphtha background database "naphtha market-global". The high-pressure steam and low-pressure steam of the public works part rely on the power station of the refining and chemical project, and the "chemical steam-global average" is retrospectively traced in the model. Fresh water relies on the water purification plant of the refinery project, and the model links "fresh water-raw material flow". Electricity consumption is partly traceable to "Electricity, Medium Voltage, State Grid of China". The pollutant discharge part follows the accounting principle of pollutant discharge in the petrochemical industry. |
Modelling and validation
Administrative information
Inputs and Outputs