“Chemical engineering is a branch of engineering that applies the natural (or experimental) sciences (e.g., chemistry and physics) and life sciences (e.g. biology, microbiology and biochemistry) together with mathematics and economics to production, transformation, transportation and proper usage of chemicals, materials and energy. It essentially deals with the engineering of chemicals, energy and the processes that create or convert them. Modern chemical engineers are concerned with processes that convert raw-materials or (cheap)chemicals into more useful or valuable forms. In addition, they are also concerned with pioneering valuable materials and related techniques – which are often essential to related fields such as nanotechnology, fuel cells and bioengineering. Chemical engineers apply the principles of chemistry, biology, physics, and math to solve problems that involve the production or use of chemicals, fuel, drugs, food, and many other products. They design processes and equipment for large-scale manufacturing, plan and test production methods and byproducts treatment, and direct facility operations. Within chemical engineering, two broad subgroups include design, manufacture, and operation of plants and machinery in industrial chemical and related processes (“chemical process engineers”) and development of new or adapted substances for products ranging from foods and beverages to cosmetics to cleaners to pharmaceutical ingredients, among many other products (“chemical product engineers”).” [chemical engineering Wikipedia]
It has a comprehensive collection of vector P&ID chemistry shapes. You will find air scrubber, air stripper, burn tower, chemical mixing tank, chemical processing tower, crystallizer, dryer tower, evaporator, filter system, refinery tower, cyclone separator, dust chamber, tank, reactor, modifier, stabilizer, and more.
The vector stencils library “Chemical engineering” contains many symbols of chemical and process engineering equipment.
Use these shapes for drawing block block flow diagrams (BFD), process flow diagrams (PFD), piping and instrumentation diagrams (P&ID), and water flow diagrams. you can as well get some standard symbols for chemical plant design or processes at British or American aceepted standards on daily jonal publications.