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Tengzhou Ailun Analytical Instrument Co., Ltd
Coal coking chromatograph
NegotiableUpdate on 05/06
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Overview
In the coking industry, traditional chemical analysis methods are used for product quality inspection and intermediate control analysis in coking plants. There are usually two conventional measurement methods for hydrogen sulfide content in coal gas, one is chemical titration and the other is colorimetric method with the help of a spectrophotometer. These two methods are time-consuming and limited by detection limits. The guidance for production processes is not strong, and the analysis time is long, the operation is cumbersome, and it is easy to produce systematic errors and human errors, which affect the accuracy and timeliness of analysis.
Product Details
Coal coking chromatographPerformance characteristics
1.Using microcontroller and integrated circuit control, Chinese interface, and keyboard settings for operating parameters. The instrument has power failure protection and file storage functions. Adopting a large screen LCD display. At the same time, the instrument has a stopwatch timing function.
2.The instrument adopts a dual column dual gas path structure and is equipped with a flame photometric detector (hydrogen flame ionization detector can be added). Multiple detectors can also be configured according to user analysis needs.
3.The detector and its control components adopt a plug and play control mode.
4.Can perform constant temperature and programmed heating operations. It has over temperature protection function. The column room is equipped with a flexible rear door automatic temperature control system. It can achieve true near room temperature operation and five stage programmed heating.
5.The injection system features packed column head injection, glass lined rapid injection, and capillary column diversion with membrane cleaning function/Multiple injection devices such as non split injection; Configure a gas sampler with a dual gas and liquid injection system. Using manual method/Automatic inert injection switching valve (optional) and specially designed inert piping system.
6.The combination of high-frequency temperature sampling mode and good proportional heating method makes temperature control more preciseThe simulated temperature difference compensation mode of * greatly improves temperature accuracy.
7.*The software and hardware design of the operation control system ensures that the instrument automatically monitors the entire system during operation, fundamentally eliminating the phenomenon of instrument temperature and operating parameter loss of control. We have achieved fault free over temperature protection, as well as active over temperature protection function and dual hardware self-locking over temperature control structure, ensuring the safe operation of the instrument when unmanned.
8.Through software design, the column chamber temperature is always lower than the detector temperature during the instrument heating process20Heating up to ℃ effectively avoids detector contamination.
9.The instrument has a high temperature protection function, and any temperature control exceeds a certain range of the set temperature (the set value is20At ℃, the instrument will be powered off for protection and trigger an alarm.
10. The carrier gas circuit has low pressure and gas cut-off protection functions.
11.Pre installed backup temperature control port, easy to expand and use.
Coal coking chromatographMain technical indicators
1、 temperature control
（1）Column temperature;
Temperature control range: room temperature plus 3℃～400℃。
Temperature control accuracy: better than ±0.1℃。
Temperature gradient: room temperature plus 5℃～400℃, within the effective area of the column chamber, not exceeding1%.
Program heating order: five orders.
Heating rate:0.1～40℃/min.
Initial and final temperature control time:0～600min.
The repeatability of program heating is not greater than2%.
（2）Temperature control accuracy of vaporization chamber and detection chamber:
Vaporization chamber: better than ±0.1℃
Testing room: better than ±0.1℃
2、Hydrogen flame ionization detector
（1） Detection limit: not greater than1×10-11g/s. (Benzene)/cs2）
（2） Noise: not greater than0.025mV
（3） Drift: not greater than0.15mV/h
3、Flame photometric detector
（1） Detection limit:
No more than sulfur5×10-11g（s）/s(Methyl parathion)
Phosphorus not exceeding5×10-12g（p）/s(Methyl parathion)
（2）Noise: not greater than0.025mV
（3）Drift: not greater than0.15mV/h
4Instrument size and weight.
Overall dimensions635×490×470mm
Weight: Approximately55kg
