Are there any reciprocators driven by steam turbines?

Is this unit from SHENGU driven by a turbine?

I came across a post from a forum discussion from ten years ago; back then they weren’t used very often. Ten years have passed – has anything changed? ------------------------------ Why are reciprocating compressors rarely driven by turbines? https://bbs.hcbbs.com/thread-487235-1-1.html (Source: Haichuan Chemical Industry Forum)

There have been discussions in forums and relevant literature; the ammonia synthesis units at Luxi Chemical used it in the early days, but it was said to not perform well, so they switched back to motor-driven systems. I also believe that it is not suitable under normal circumstances for the following reasons: (1) Low rotational speed, pulse load. Typically, the speed of reciprocating machines ranges from 300 to 1000 rpm. If a steam turbine is used, a gearbox is necessary, which requires more space and investment. Moreover, high requirements are placed on the impact resistance and wear resistance of components such as gearboxes; from a reliability perspective, motor-driven systems are superior. ⑵Starting and stopping, normal operation: It is more suitable to use motor drive for comparison, especially during starting and stopping processes as well as sudden shutdowns, where there are many issues with turbine drive. ⑶Reciprocating engines stop operating due to the frequent need to replace air valves and piston rings, and steam turbines also have to shut down frequently as a result, which affects their service life.

Things that all have advantages may not necessarily make a good thing when combined

The speed of the turbine is very high, usually at 10,000 revolutions per minute, with a minimum of 5,000 revolutions per minute to ensure high efficiency; if the speed is set too low, the efficiency will be low. Piston compressors generally operate at 3,000 revolutions per minute, and they require a large moment of inertia; therefore, it is unlikely that turbines will be used as a power source for them.

Industrial steam turbines, as driving devices, are highly mature and widely used in various industries. We have models with speeds of 1500 revolutions per minute, 3000 revolutions per minute, and up to 10,000 revolutions per minute. We are a manufacturer of steam turbines, and we can provide detailed discussions on industrial drive steam turbines

It is widely used in the chemical, power generation, and steel industries; the technology is quite mature. The original motor can be retained, allowing for operation either by electricity or by steam.

It’s possible to avoid using a gearbox and connect directly. The reciprocating pump + motor + turbine can be arranged on the same axis, featuring a three-in-one patented design that ensures high stability and energy efficiency.

In what areas are such compressors used, and are there any larger versions?