GB/T 34674-2017 in English
VALIDTechnical guideline for methane preparation from coke oven gas
- Issued on:2017-11-01
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | GB/T 34674-2017 |
| Document status: | VALID |
| Title in English: | Technical guideline for methane preparation from coke oven gas |
| Title in Chinese: | 焦炉气制甲烷技术导则 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2017-11-01 |
| Implemented on: | 2018-05-01 |
| ICS Classification: | 71.100.20-Gases for industrial application |
| Professional Classification: | GB-National Standard |
| Related Keywords: | coke oven gas
national gas standardization technical committee waste gas gas introduction exhaust gas |
| Related Topics: | Non-methane calibration gas
coke oven gas coke oven gas coke oven residue GBT34674 GB/T 34674-2017 Methane standard gas technical parameters Methane reformer Sea-gas methane technology Methane monitoring technology Oil and gas methane detection technology Atmospheric methane monitoring technology Methanol production technology from coke oven gas Technologies involving tar and toluene |
《GB/T 34674-2017焦炉气制甲烷技术导则》由TC206（全国气体标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。
Introduction
1. Background and significance of standard formulation
GB/T 34674-2017 Technical Guidelines for Methane Production from Coke Oven Gas is my country's first technical standard for methane production from coke oven gas, which aims to standardize the overall requirements, process design and auxiliary engineering of production equipment. The standard was proposed by the China Petroleum and Chemical Industry Federation and is managed by the National Gas Standardization Technical Committee.
2. Comparison of standard frameworks
| Dimensions | GB/T 34674—2017 | International advanced level | Domestic average level |
|---|---|---|---|
| Process design requirements | Fully cover gas pretreatment, compression, purification, methanation and separation and purification systems | Focus on modularization and high efficiency | There are problems with poor process connection |
| Equipment selection standards | Use 15CrMo alloy or carbon steel, emphasizing long-term reliability | Widely use imported high-end equipment | Partially rely on domestic equipment |
| Environmental protection requirements | Strictly control emissions of waste gas, solid waste and heavy metals | Focus on environmental management throughout the entire process | Some companies have insufficient end-of-pipe treatment |
3. Analysis of technological evolution
Methanation reactor: The technological upgrade from fixed bed to fluidized bed significantly improves conversion efficiency and stability. The reference operating conditions are as follows:
- Operating temperature: 300°C ~ 650°C
- Inlet temperature: 250°C ~ 350°C
- Pressure: 1.5 MPa ~ 2.5 MPa
- Space velocity: 3,000 h⁻¹ ~ 15,000 h⁻¹
4. Implementation Suggestions
4.1 Process optimization suggestions:
It is recommended to adopt a circulating adiabatic methanation process with a total conversion rate and selectivity of 99% and 99.9% respectively.
4.2 Equipment selection recommendations:
Give priority to electric drive compressors or steam turbines, and ensure that the compressor material meets the 15CrMo alloy standard.
4.3 Environmental compliance recommendations:
Strictly implement the emission limits for exhaust gas, solid waste and heavy metals (such as total sulfur content not exceeding 0.1 mg/m³).
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