Key Data Set Information | |
Location | CN |
Reference year | 2021 |
Name |
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Use advice for data set | When utilizing this data set for life cycle assessment (LCA), users must account for the upstream environmental impacts associated with natural gas extraction and processing. Also, the inclusion of by-product allocation for CO2 produced in the process should be considered. If the hydrogen is used as a feedstock, the consequential environmental impacts of its downstream applications must also be included in the LCA. |
Technical purpose of product or process | This industrial process description outlines the production of hydrogen gas via steam methane reforming, which is suitable for applications requiring high-purity hydrogen. This includes fuel cell technology, the manufacture of electronic components, and as a feedstock for various chemical synthesis processes in the chemical industry. |
Classification |
Class name
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Hierarchy level
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General comment on data set | the externally supplied natural gas was mixed with steam and then put into the reforming reactor at 800°C and 1.3 MPa. The products of the steam reforming reaction were cooled to 350°C and then entered into the water–gas conversion reactor, where carbon monoxide (CO) and H2O were converted into carbon dioxide (CO2) and hydrogen. Then the hydrogen was separated by pressure swing adsorption (PSA) |
Copyright | No |
Owner of data set | |
Quantitative reference | |
Reference flow(s) |
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Functional Unit | 15.8 kg H2 (hydrogen as an intermediate product) |
Time representativeness | |
Time representativeness description | the publication date of the article |
Technological representativeness | |
Flow diagram(s) or picture(s) |
LCI method and allocation | |||||
Type of data set | Unit process, single operation | ||||
LCI Method Principle | Attributional | ||||
Deviation from LCI method principle / explanations | None | ||||
Deviation from modelling constants / explanations | None | ||||
Data sources, treatment and representativeness | |||||
Deviation from data cut-off and completeness principles / explanations | None | ||||
Deviation from data selection and combination principles / explanations | None | ||||
Deviation from data treatment and extrapolations principles / explanations | None | ||||
Data source(s) used for this data set | |||||
Completeness | |||||
Completeness of product model | No statement | ||||
Validation | |||||
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Data generator | |
Data set generator / modeller | |
Data entry by | |
Time stamp (last saved) | 2024-03-28T20:27:24+08:00 |
Publication and ownership | |
UUID | c07eb620-1a71-490e-b871-3e5ef1037cbe |
Date of last revision | 2024-04-20T15:21:33.174154+08:00 |
Data set version | 00.01.005 |
Permanent data set URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=c07eb620-1a71-490e-b871-3e5ef1037cbe&version=01.00.000&stock=TianGong |
Owner of data set | |
Copyright | No |
License type | Free of charge for all users and uses |
Inputs
Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
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Product flow | Energy carriers and technologies / Heat and steam | 60.12 MJ | 60.12 MJ | ||||||
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Product flow | Materials production / Other mineralic materials | 40.08 kg | 40.08 kg | ||||||
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Product flow | Energy carriers and technologies / Electricity | 422.64000000000004 MJ | 422.64000000000004 MJ |
Outputs
Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
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Product flow | Materials production / Inorganic chemicals | 15.8 kg | 15.8 kg | ||||||
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