Problems in the chemical industry

Isn’t chemical engineering design really interesting and exciting?

In the design industry, there is a saying: “Cherish your life and stay away from design.” I wonder if you still think chemical engineering design is interesting and exciting?

Reply to Floor 1: In the chemical industry, GC and HPLC are commonly used, while other methods are used less frequently. It’s not that they’re useless; it’s just that the equipment is too expensive, and ordinary manufacturers can’t afford it.

Analysis is essential in chemical production and process development, and whenever analysis is carried out, certain analytical instruments are necessary!

I’m not sure whether the chemical engineering mentioned by the original poster refers to design or production Production naturally requires analysis, and with such analysis, it becomes possible to put it to use.

These analytical methods are definitely used in the chemical industry

These analytical methods are needed in both chemical research and quality control in chemical production!

We have only used gas chromatography and infrared spectroscopy; we’ve only heard of the others.

I used to hear from the teacher in class that whatever is designed by chemical engineering design institutes is completely ignored. . . . . It’s just the design; the actual implementation is what needs to be done. . . . The feasibility depends on their situation. . .

It is definitely necessary to use it, especially in the fine chemical industry.

Chemical manufacturing cannot do without laboratories; necessary analyses are essential. In our factory, carbon spectroscopy and gas chromatography are used quite frequently

It is widely used in gas chromatography, and also in mass spectrometry; it is rarely used in a few other applications. Atomic absorption spectrophotometers are also in use.

It is more commonly used in gas phase applications; other types of mass spectrometers are relatively expensive, and few manufacturers can have all the analysis instruments listed by the original poster. In chemical engineering design (not carried out by design firms), one must first be responsible for the product, secondly for safety, and thirdly for financial matters. It’s easy to imagine how great the pressure and responsibilities are; only those with a strong will can handle them. :)

The analytical methods described by the original poster are applied in the field of chemical engineering. Especially in scientific research, the development of fine chemical products should also be used quite frequently

Inferential instruments are of course necessary; otherwise, how can quality inspection be carried out?

Gas phase GC: This is commonly used to analyze and separate the components at the top and bottom of a tower. Infrared IR: This is used to analyze organic compounds. High-performance liquid chromatography HPLC: This is more frequently used in research; our teachers use it to study the permeability and selectivity of membranes in chemical processes. Actually, another very commonly used method is XRD: X-ray diffraction analysis, which is used to determine the crystal structure. XRD is used for catalyst materials, the crystal form analysis of separation membranes, and the analysis of material properties. Mass spectrometry MS, proton NMR HNMR, carbon NMR CNMR: I have never seen them being used. . In my sophomore year, I took a course on analytical chemistry, and the teacher explained that MS is used to analyze extremely small amounts – for example, it’s possible to determine whether a person is deficient in zinc just by analyzing a single hair. .

Indeed! Many papers in the field of chemical engineering use XRD, or SEM for microscopic analysis; it’s not like in other fields where NMR is used so frequently

Gas phase GC and mass spectrometry MS are used more frequently, while others are used less!

Typical manufacturing plants use gas and liquid phase methods for analysis; mass spectrometry is too expensive, and it is generally only used by researchers.