Briefly presents the damage of CO2 compressor during its startup due to too high shaft direction thrust,analyses reasons for the damage from the aspect of process changes.

The main reason for the shutdown of urea process system is the trip of high pressure ammonia pump and CO2 compressor.

The operation of CO2 compressor instrument system was adversely affected by the factors, such as unreasonable type selection of some instruments, poor operating quality, and the instrument approaching the end of service life.

Technical reformation of cortrol system for CO_2 compressor;

In this paper,the vibration fault of lower-pressure cylinder of a CO_2 compressor is analyzed,and then a corresponded maintenance scheme and the detail predictive measure are proposed.

Presents the main problems of the oil control loop of CO 2 compressor,analyses the reasons for them,proposes the measures for improvement and summarizes the effect of the improvemen

Presents the flow circuit of CO 2 compressor and its main performance parameters The probability of decreasing the rotational speed of the compressor unit is also discussed by theoretical calculation and preliminary tests Under the condition of stable operation of the compressor unit ,the proper decreasing of the rotational speed is beneficial to optimized control and energy savin

The operational period of CO 2 compressors was extended by a series of modification of airproof pressure in the high pressure cylinder in compressors,adjustment of the antisurge curve,betterment of operational parameters and revamping of equipment.

This article introduces the operating conditions of 4M12-50/206 carbon dioxide compressor after cancelling the balance stage.

Briefing the reasons and contents of transformation n the CO_2 reciprocal compressor,and computating the pressure of every stage repeatedly according to the reality,summarizing the results of transformation.