(Coal) Chemical Industry Cases

PID loop tuning & maintenance (500 loops), 2017–2019;
Hydrogenation reactor temperature automatic control (15 reactors), 2017–2018;
De-methanol distillation column automatic control, 2018;
Thermal oil heater automatic control — design & commissioning, 2018–2019;
Nitration production line temperature control (2 lines, 15 reactors), 2019–2021;
Plant-wide PID loop performance evaluation & diagnostics (4,300 loops), 2022–2023;
MPD distillation column APC system, 2023–2024.

200,000 t/y butanol-octanol unit, 2025-04；
Results: (1) Entire unit switched from manual to automatic control;
(2) Key controlled indicator fluctuations reduced by over 50%;
(3) Product yield improved by 0.5%.

400 t/d boiler, 2025-07；
Results: (1) Automation rate increased from 40% to 100%;
(2) Critical parameter fluctuations reduced by over 50%.