Measurement challenges in octanol production
Octyl alcohol production typically uses propylene and syngas as raw materials, employing specific process technologies involving complex chemical reactions and mass transfer. Accurate measurement of parameters such as flow rate, liquid level, and pressure is crucial in this process.
A large chemical company's octanol production workshop encountered multiple measurement challenges during production.
1. Flow Rate Measurement Errors in Raw Material Transportation
In the raw material transportation stage, the flow rate measurement accuracy for the gas and liquid raw materials required for octanol production, such as propylene and syngas, was insufficient. The existing measurement equipment struggled to handle the complex fluid characteristics, leading to imbalances in raw material ratios and directly impacting the efficiency of the synthesis reaction.
2. Insufficient Reliability of Pressure Monitoring in the Synthesis Reaction Tower
The high-temperature, high-pressure, and highly corrosive environment within the octanol synthesis tower places extremely high demands on the pressure measurement equipment. Due to material and technological limitations, the existing measurement equipment frequently malfunctioned, failing to provide stable pressure data within the tower and threatening production safety.
3. Environmental Interference in Finished Product Storage Tank Level Measurement
During the finished product storage stage, the liquid level measurement in the storage tanks was severely affected by changes in ambient temperature and pressure. The original measuring equipment had large deviations in its measurement data, making it difficult for operators to accurately grasp the material reserves, which caused great trouble for production planning and transportation arrangements.
YIGEQI precise solution to the problem of octanol measurement
The company adopted the YIGEQI7961 series transmitter, which perfectly solved the measurement problem that had plagued them for many years.

The YIGEQI7961 series transmitter connects to the octanol pipeline or container via a pressure tap, ensuring that the octanol pressure is accurately transmitted to the transmitter's measuring chamber. Measurement accuracy reaches ±0.075%, and the output 4-20mA current signal can be directly transmitted to the control system. Furthermore, the YIGEQI7961 series transmitter supports the HART 7 communication protocol, enabling bidirectional communication with intelligent devices.
YIGEQI transmitters support Bluetooth connectivity, allowing operators to perform parameter settings, calibration, and fault diagnosis from a safe distance via a companion mobile app.
Featuring an explosion-proof shell and diaphragms made of special corrosion-resistant materials such as Hastelloy, it effectively resists the erosion of highly corrosive media during octanol production. Meanwhile, the built-in single-crystal silicon sensor maintains high-precision measurement even under high-temperature and high-pressure environments, providing real-time feedback of pressure changes within the tower to the control system.

The YIGEQI7961 series transmitter is used to measure the pressure difference generated by the liquid level in the storage tank. Combined with parameters such as liquid density, the liquid level height is accurately calculated. This solution is unaffected by environmental factors and can stably output accurate liquid level data.
Witness the qualitative leap with data

After the YIGEQI7961 series transmitters were put into use, they transmitted flow data to the control system in real time. Following the upgrade, reaction efficiency was significantly improved, octanol production increased by 15%, and product quality stability was significantly enhanced.
They operate stably in harsh environments, accurately measuring pressure within the tower. When pressure anomalies occur, the control system promptly activates emergency mechanisms, effectively preventing safety accidents, ensuring production continuity, and reducing equipment failure frequency by 80%.
The original transmitter had a deviation of up to 5%, while the YIGEQI transmitter's error is controlled within ±0.075%. Accurate liquid level data helps operators rationally plan production and transportation, reducing production interruptions and material waste, and significantly improving production management efficiency.
With its high precision, high stability, and strong environmental adaptability, the YIGEQI7961 series transmitters successfully solved the measurement challenges in octanol production, providing strong support for enterprises to improve production efficiency, ensure product quality, and reduce operating costs.










