GB/T 34702-2017 in English
VALIDAnalytical method of chemical composition for low temperature sulphur tail gas hydrogenation catalyst
- Issued on:2017-11-01
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 34702-2017低温硫磺尾气加氢催化剂化学成分分析方法》由TC63（全国化学标准化技术委员会）归口，TC63SC10（全国化学标准化技术委员会化工催化剂分会）执行，主管部门为中国石油和化学工业联合会。
Introduction
1. Background of standard formulation and analysis of technological evolution
GB/T 34702-2017 "Analysis Method for Chemical Composition of Low-temperature Sulfur Tail Gas Hydrogenation Catalyst" was issued in 2017. It is mainly applicable to the determination of the mass fraction of molybdenum trioxide (MoO3), cobalt oxide (CoO), nickel (Ni), calcium (Ca) and magnesium (Mg) in low-temperature sulfur tail gas hydrogenation catalysts with cobalt and molybdenum as the main active components and alumina or alumina/titanium oxide as the carrier.
This standard was proposed by the China Petroleum and Chemical Industry Federation and is managed by the Chemical Catalyst Sub-Technical Committee of the National Chemical Standardization Technical Committee. The drafting units of the standard include Nanhua Group Research Institute, Shandong Qilu Keli Chemical Research Institute Co., Ltd. and Shandong Xunda Chemical Group Co., Ltd., and the main drafters include Li Min, Tian Li and others.
2. Comparative analysis of standard frameworks
| Standard content | GB/T 34702—2017 | Comparative analysis |
|---|---|---|
| Scope of application | Chemical composition analysis of low-temperature sulfur tail gas hydrogenation catalyst | Added adaptability requirements for new catalysts |
| Determination method | Spectrophotometry, inductively coupled plasma atomic emission spectrometry (ICP-AES) | The pre-treatment steps for complex samples have been optimized |
| Accuracy requirements | The absolute difference of parallel determination results is ≤0.2% (MoO3), ≤0.1% (CoO), etc. | The determination accuracy is improved to meet the needs of high sensitivity |
3. Implementation suggestions
3.1 Key points of standard implementation
Instrument calibration:Ensure the wavelength accuracy and sensitivity of the spectrophotometer and ICP-AES instrument, and calibrate them regularly.
Reagent purity:Use analytical reagents in strict accordance with standard requirements, and pay attention to the quality control of secondary water.
Sample pretreatment:Strictly follow the quartering method and burning procedures to ensure the uniformity and representativeness of the sample.
3.2 Application Cases
A petrochemical enterprise adopted this standard to analyze the chemical composition of low-temperature sulfur tail gas hydrogenation catalyst and successfully improved the determination accuracy of molybdenum trioxide to 0.1%, providing a reliable basis for product quality control.
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 31590-2025 in English
Analytical method of chemical composition for flue gas DeNOx catalysts
2025-12-02 -
GB/T 34233-2017 in English
Test method of activity for low temperature sulphur tail gas hydrogenation catalyst
2017-09-07 -
GB/T 39703-2020 in English
Guideline for the testing of corrugated DeNOx catalysts
2020-12-14
