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In the field of engineering, a chemical engineer is a professional, equipped with the knowledge of
chemical engineering Chemical engineering is an engineering field which deals with the study of operation and design of chemical plants as well as methods of improving production. Chemical engineers develop economical commercial processes to convert raw materials in ...
, who works principally in the
chemical industry The chemical industry comprises the companies that produce industrial chemicals. Central to the modern world economy, it converts raw materials ( oil, natural gas, air, water, metals, and minerals) into more than 70,000 different products. ...
to convert basic raw materials into a variety of products and deals with the design and operation of plants and equipment. In general, a chemical engineer is one who applies and uses principles of chemical engineering in any of its various practical applications; these often include # design, manufacture, and operation of plants and machinery in industrial chemical and related processes ("chemical process engineers"); # 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"); and # development of new technologies such as
fuel cells A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions. Fuel cells are different from most batteries in requ ...
,
hydrogen power Hydrogen fuel refers to hydrogen which is burned as fuel with oxygen. It is zero-carbon, provided that it is created in a process that does not involve carbon. It can be used in fuel cells or internal combustion engines (see HICEV). Regarding ...
and
nanotechnology Nanotechnology, also shortened to nanotech, is the use of matter on an atomic, molecular, and supramolecular scale for industrial purposes. The earliest, widespread description of nanotechnology referred to the particular technological goal ...
, as well as working in fields wholly or partially derived from chemical engineering such as materials science, polymer engineering, and
biomedical engineering Biomedical engineering (BME) or medical engineering is the application of engineering principles and design concepts to medicine and biology for healthcare purposes (e.g., diagnostic or therapeutic). BME is also traditionally logical sciences ...
.This can include working of geophysical projects such as rivers, stones, and signs


History

The president of the
Institution of Chemical Engineers The Institution of Chemical Engineers (IChemE) is a global professional engineering institution with over 33,000 members worldwide. It was founded in 1922 and awarded a Royal Charter in 1957. It has offices in Rugby, London, Melbourne, Wellingt ...
said in his presidential address "I believe most of us would be willing to regard Edward Charles Howard (1774–1816) as the first chemical engineer of any eminence". Others have suggested
Johann Rudolf Glauber Johann Rudolf Glauber (10 March 1604 – 16 March 1670) was a German-Dutch alchemist and chemist. Some historians of science have described him as one of the first chemical engineers. His discovery of sodium sulfate in 1625 led to the compou ...
(1604–1670) for his development of processes for the manufacture of the major industrial acids. The term appeared in print in 1839, though from the context it suggests a person with
mechanical engineering Mechanical engineering is the study of physical machines that may involve force and movement. It is an engineering branch that combines engineering physics and mathematics principles with materials science, to design, analyze, manufacture, ...
knowledge working in the
chemical industry The chemical industry comprises the companies that produce industrial chemicals. Central to the modern world economy, it converts raw materials ( oil, natural gas, air, water, metals, and minerals) into more than 70,000 different products. ...
. In 1880, George E. Davis wrote in a letter to ''Chemical News'' "A Chemical Engineer is a person who possesses chemical and mechanical knowledge, and who applies that knowledge to the utilisation, on a manufacturing scale, of chemical action." He proposed the name Society of Chemical Engineers, for what was in fact constituted as the
Society of Chemical Industry The Society of Chemical Industry (SCI) is a learned society set up in 1881 "to further the application of chemistry and related sciences for the public benefit". Offices The society's headquarters is in Belgrave Square, London. There are semi-i ...
. At the first General Meeting of the Society in 1882, some 15 of the 300 members described themselves as chemical engineers, but the Society's formation of a Chemical Engineering Group in 1918 attracted about 400 members. In 1905 a publication called ''The Chemical Engineer'' was founded in the US,The Cornell daily Sun
Volume XXV, Number 25, 26 October 1904
and in 1908 the
American Institute of Chemical Engineers The American Institute of Chemical Engineers (AIChE) is a professional organization for chemical engineers. AIChE was actually established in 1908 to distinguish chemical engineers as a profession independent of chemists and mechanical enginee ...
was established.John C. Olsen (December 1932), ''Chemical Engineering As A Profession: Origin and Early Growth of the American Institute of Chemical Engineers''
In 1924 the
Institution of Chemical Engineers The Institution of Chemical Engineers (IChemE) is a global professional engineering institution with over 33,000 members worldwide. It was founded in 1922 and awarded a Royal Charter in 1957. It has offices in Rugby, London, Melbourne, Wellingt ...
adopted the following definition: "A chemical engineer is a professional man experienced in the design, construction and operation of plant and works in which matter undergoes a change of state and composition." As can be seen from the later definition, the occupation is not limited to the
chemical industry The chemical industry comprises the companies that produce industrial chemicals. Central to the modern world economy, it converts raw materials ( oil, natural gas, air, water, metals, and minerals) into more than 70,000 different products. ...
, but more generally the process industries, or other situations in which complex physical and/or chemical processes are to be managed. The UK journal ''
The Chemical Engineer ''The Chemical Engineer'' is a monthly chemical engineering technical and news magazine published by the Institution of Chemical Engineers (IChemE). It has technical articles of interest to practitioners and educators, and also addresses current ev ...
'' (began 1956) has a series of biographies available online entitled “Chemical Engineers who Changed the World”, www.thechemicalengineer.com
Chemical engineers who changed the world


Overview

Historically, the chemical engineer has been primarily concerned with
process engineering Process engineering is the understanding and application of the fundamental principles and laws of nature that allow humans to transform raw material and energy into products that are useful to society, at an industrial level. By taking advantage ...
, which can generally be divided into two complementary areas: chemical reaction engineering and
separation process A separation process is a method that converts a mixture or a solution of chemical substances into two or more distinct product mixtures, a scientific process of separating two or more substance in order to obtain purity. At least one product mi ...
es. The modern discipline of chemical engineering, however, encompasses much more than just process engineering. Chemical engineers are now engaged in the development and production of a diverse range of products, as well as in commodity and specialty
chemical A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., w ...
s. These products include high-performance materials needed for
aerospace Aerospace is a term used to collectively refer to the atmosphere and outer space. Aerospace activity is very diverse, with a multitude of commercial, industrial and military applications. Aerospace engineering consists of aeronautics and ast ...
, automotive,
biomedical Biomedicine (also referred to as Western medicine, mainstream medicine or conventional medicine)
, electronic,
environmental A biophysical environment is a biotic and abiotic surrounding of an organism or population, and consequently includes the factors that have an influence in their survival, development, and evolution. A biophysical environment can vary in scal ...
and
military A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct ...
applications. Examples include ultra-strong fibers,
fabrics Textile is an umbrella term that includes various fiber-based materials, including fibers, yarns, filaments, threads, different fabric types, etc. At first, the word "textiles" only referred to woven fabrics. However, weaving is not the ...
,
adhesives Adhesive, also known as glue, cement, mucilage, or paste, is any non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation. The use of adhesives offers certain advant ...
and composites for vehicles, bio-compatible materials for implants and prosthetics,
gel A gel is a semi-solid that can have properties ranging from soft and weak to hard and tough. Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady-state, although the liquid phase may still di ...
s for medical applications,
pharmaceuticals A medication (also called medicament, medicine, pharmaceutical drug, medicinal drug or simply drug) is a drug used to diagnose, cure, treat, or prevent disease. Drug therapy ( pharmacotherapy) is an important part of the medical field and re ...
, and films with special dielectric, optical or
spectroscopic Spectroscopy is the field of study that measures and interprets the electromagnetic spectra that result from the interaction between electromagnetic radiation and matter as a function of the wavelength or frequency of the radiation. Matter wa ...
properties for opto-electronic devices. Additionally, chemical engineering is often intertwined with
biology Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary ...
and
biomedical engineering Biomedical engineering (BME) or medical engineering is the application of engineering principles and design concepts to medicine and biology for healthcare purposes (e.g., diagnostic or therapeutic). BME is also traditionally logical sciences ...
. Many chemical engineers work on biological projects such as understanding biopolymers (
proteins Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, respo ...
) and mapping the human genome.


Employment's and salaries

According to a 2015 salary survey by the AIChE, the median annual salary for a chemical engineer was approximately $127,000.Chemical Engineering Progress June 2015 The survey was repeated in 2017 and the median annual salary dropped slightly to $124,000. The decrease in median salary was unexpected. A factor contributing to the decline may be that 2017’s survey was conducted by a different research and analysis firm. Median salaries ranged from $70,450 for chemical engineers with fewer than three years of experience to $156,000 for those with more than 40 years in the workforce. In the UK, the IChemE 2016 Salary Survey reported a median salary of approximately £57,000, with a starting salary for a graduate averaging £28,350.Institution of Chemical Engineers Annual Review 2016 Chemical engineering in the USA is one of the engineering disciplines with the highest participation of women, with 35% of students compared with 20% in engineering.Brawner, C. E., Lord, S. M., Layton, R. A., Ohland, M. W., & Long, R. A., (2015) ''International Journal of Engineering Education'' Vol. 31, No. 6(A), 1431, "Factors Affecting Women’s Persistence in Chemical Engineering" In the UK in 2014, students starting degrees were 25% female, compared with 15% in engineering.''The Chemical Engineer'', March 2015 p 20 US graduates who responded to a 2015 salary survey were 18.8% female.


See also

*
American Institute of Chemical Engineers The American Institute of Chemical Engineers (AIChE) is a professional organization for chemical engineers. AIChE was actually established in 1908 to distinguish chemical engineers as a profession independent of chemists and mechanical enginee ...
(AIChE) *
Distillation Distillation, or classical distillation, is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation, usually inside an apparatus known as a still. Dry distillation is the he ...
*
Fluid dynamics In physics and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids— liquids and gases. It has several subdisciplines, including ''aerodynamics'' (the study of air and other gases in motion) a ...
*
Heat transfer Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy ( heat) between physical systems. Heat transfer is classified into various mechanisms, such as thermal conducti ...
* History of chemical engineering *
Institution of Chemical Engineers The Institution of Chemical Engineers (IChemE) is a global professional engineering institution with over 33,000 members worldwide. It was founded in 1922 and awarded a Royal Charter in 1957. It has offices in Rugby, London, Melbourne, Wellingt ...
(IChemE) * List of chemical engineering societies * List of chemical engineers *
Mass transfer Mass transfer is the net movement of mass from one location (usually meaning stream, phase, fraction or component) to another. Mass transfer occurs in many processes, such as absorption, evaporation, drying, precipitation, membrane filtration ...
*
Process control An industrial process control in continuous production processes is a discipline that uses industrial control systems to achieve a production level of consistency, economy and safety which could not be achieved purely by human manual control. ...
* Process design (chemical engineering) *
Process engineering Process engineering is the understanding and application of the fundamental principles and laws of nature that allow humans to transform raw material and energy into products that are useful to society, at an industrial level. By taking advantage ...
* Process miniaturization * Unit operations * Chemfluence


References


External links


American Institute of Chemical Engineers (USA)Institution of Chemical Engineers (UK)Engineers Australia (AUS)
{{DEFAULTSORT:Chemical Engineer * Engineering occupations