GB/T 2282-2022 in English
VALIDMethod for measuring distillation range of coking light oil products
- Issued on:2022-07-11
- Implemented on:2022-11-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
《GB/T 2282-2022焦化轻油类产品馏程的测定方法》由TC469(全国煤化工标准化技术委员会)归口,TC469SC3(全国煤化工标准化技术委员会炼焦化学分会)执行,主管部门为国家标准化管理委员会。
Introduction
Core changes in the standard revision
| Revision dimensions | 2000 version | 2022 version | Technical significance |
|---|---|---|---|
| Material requirements | Asbestos material | Heat-resistant and thermal insulation material | Meet environmental protection requirements |
| Heat source regulations | Gas lamp limitation | Equivalent heat source expansion | Adapt to laboratory diversification |
| Calculation formula | No atmospheric pressure conversion | New formula (7) | Improve data accuracy |
Key requirements for instruments and equipment
The standard specifies the specifications of two types of distillation flasks: Type I (150mL) for benzene and pyridine, and Type II (200mL) for phenol and quinoline. Thermometers must comply with the provisions of YB/T2305, including:
- COK7C type: dedicated to phenols, measuring range 180-230℃
- COK21C type: dedicated to crude benzene, measuring range 50-210℃
Key points of test operation
Benzene sample detection case
Take light benzene detection as an example: use upper diameter measuring cylinder to measure 100mL of sample and control the distillation speed to 4-5mL/min. When the distillate reaches 96mL, the final distillation point reading must be accurately controlled within 2-2.5min. If the distillation loss exceeds 1.5%, a retry is required.
Application of calculation formula
Added atmospheric pressure correction formula: Δt3=0.0009(273+tA)(101.3-p), where p needs to be converted to standard atmospheric pressure through formula (7). The amount of crude benzene distilled before 180℃ is calculated as X=(m1/m)×100%, rounded to 1 decimal place.
Implementation suggestions
- Establish an instrument calibration account, focusing on the calibration of different diameter measuring cylinders
- Different product categories strictly correspond to the K value calculation formula in the appendix
- Quinoline dehydration requires three-stage treatment with solid potassium hydroxide

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