A chemical engineer

Answer 1

Plant Chemist engineer is a person that make sure that a plant operates under certain conditions that ensure that the product quality being produced is met. This person has knowledge in various fields Physics Mathematics, Chemistry, Economic ans Social Science and other specific fields like physical chemistry, thermodynamics, transport phenomena etc.) and experience in plant and product design and operation, that allow him to take fast and rational decisions in respect with safe production of goods. In top of that, this person have well developed communications and reporting skills, able to communicate with and understand the language of other engineers (mechanical engineers, control engineers, electrical engineers etc.,). IN other words a plant chemist engineers is similar to a process engineers.

Answer 2

There is not really enough information to answer your question but a chemical engineer would design a chemical plant and associated processes. A chemist would do the work and research on the actual chemical reaction etc.