Hi
With regards to maths, as an engineering degree, you are correct that chemical engineering does have a lot of maths. In first year, the basic principles of calculus, numerical methods and matrices are taught to bring everyone up to speed. You apply calculus and trignometry in various parts of the degree - I would say the pure maths content never really gets harder than what is taught in further maths A-level but a good understanding to be able to apply it is key. Another key aspect is differential equations and being able to solve them using numerical methods. Differential equations are used extensively in chemical engineering to model reactors, flow in pipes etc. , most of which cannot be solved analytically, so we are taught numerical methods and how to apply them using MATLAB code. There is definitely maths involved but the principles of maths is not taught in too much depth - it is definitely more about the application, as that what engineering is all about!
It is important to note that chemical engineering does not have much chemistry in the course. In first year I was taught some physical chemistry and a small amount of organic chemistry as a refresh to bring everyone up to speed. Organic chemistry is not really used in the degree but it is useful for chemical engineers to have a basic understanding of the concepts, nomenclature and reaction mechanisms if they ever have to work on a process that may involve these reactions. Physical chemistry, such as the ideal gas law, rates of reaction and the Arrhenius equation, are used a lot in chemical engineering when modelling reactions so this is something from A-level which you will use a lot in the degree. Outside of that, the degree covers a range of new content which takes principles from maths, chemistry, physics and biology and applies it to the scaling up of reactions and processes.
In terms of anything you can do before applying, that is a slightly more difficult to answer. Your personal statement should demonstrate that you have a clear understanding of what the course involves and the pathways it could take you and should include evidence of this understanding and enthusiasm. I attended some summer schools, did some mechanical engineering work experience and found a small local company who employed chemical engineers so spent a day there talking to them and discovering the kind of work they get up to. You could also do online courses in aspects of chemical engineering you are interested in (there are plenty on various different websites - try searching for key topics that interest you (eg. clean energy or pharmaceuticals were mine) rather than chemical engineering in general).
I understand the challenge around knowing exactly what chemical engineering is and I think it's took me over a year of my degree to really understand what my degree involves! In 1st year you are taught basic principles of different aspects of chemical engineering: fluid mechanics, heat transfer, reaction engineering, mass and energy balances. These titles can feel abstract when you have not yet been taught the content and even then it is not until you gain a deeper understanding of these basic principles and are able to apply them to an application that you begin to understand what a chemical engineer does. In brief, a chemical engineer must have an understanding of each unit in a process (eg. reactor, filter, distillation column, sedimentation tank) and the flows in and out of these units. They must apply knowledge of health and safety, environmental considerations, legislation, fluid mechanics to understand how fluid flows between and within units, particle technology to understand the behaviour of solids and gasses, heat transfer to understand temperature and energy changes between streams and so on. An understanding of all of these aspects allows you to model the process to determine the yield, conversion efficiency, energy requirements, mass requirements and design specs of the equipment. As an engineer it's all about design, and design projects within our studies allow us to think creatively to tackle problems. I feel it's only once you have an understanding of the basic chemical engineering principles can you see how they would be applied and why they are useful.
As you are probably aware, not a huge number of Universities offer chemical engineering compared to other courses. I would recommend having a look at any specialisms each uni offers and the more niche content (more often in later years of the degree) that you would be taught to see if some interest you more than others. Doing a placement programme for me was a big reason why I chose Bath - the placement team are dedicated to helping and supporting you through the application and whilst on placement. With an ever increasing competitive graduate job market, I knew a year's industrial experience would be invaluable and Bath's record with students securing placements was a big factor in me choosing Bath. I also chose Bath because I liked the community "bubble" feel on campus compared to city unis. I am not a big city person, so the size of Bath, with it having a lot to do without being too big, was also a big factor. I would recommend looking at Univerisites and seeing where you could best imagine yourself!
Apologies my reply is so long but hopefully that answers your questions
let me know if you have any further questions!
Leah
3rd Year Chemical Engineering