Chemical and Process Engineering




Chemical and Process Engineering is concerned with the development and application of manufacturing processes in which chemical or certain physical changes are involved. These processes may usually be resolved into a co-ordinated series of unit operations in and chemical processes. The work of the chemical engineer is concerned primarily with the design, construction, and operation of equipment and plants in which these unit operations and processes are applied Chemistry, Physics, and Mathematics are the underlying sciences of Chemical & Process Engineering, and Economics is its guide in practice.

What does the Chemical & Process Engineer help produce?

The chemical industry is large (a major fraction of Kenyan gross national product), dynamic, and is constantly expanding.

In spite of the fact that an average Kenyan constantly uses chemical products, the work of the chemical & process engineer is relatively unknown since most chemical products are not direct consumer items. Some items such as gasoline, paint, paper, drugs and foods are delivered to the consumer as manufactured, but soda ash, caustic soda, chlorine, and sulphuric acid, for example, seldom reach the consumer in their original form in spite of the fact that they are in the heavy chemical group. Soda ash is used in the manufacture of glass, pulp and paper, soaps, and water softeners; caustic soda is used to make rayon, explosives, foods, bleaching compounds and soap, etc. Chemical engineers also participate in the production of materials which the general public never comes into contact with, such as radioactive substances, rocket fuels and military explosives.

Chemical & Process Engineers may be involved in the design of a new plant, either for a pilot plant project or for a complete production line. Pilot plant studies predict how big the real plant should be so that the processes are developed as efficiently as possible. Also, the engineers use their design ingenuity to find ways of modifying an existing production line to improve safety, efficiency, prevent pollution, and to do so in cost effective manner.

The activities of chemical & Process Engineers can be summarised as below:-

  • Production
  • Equipment process and plant design
  • Research and development
  • Management and planning
  • Sales and marketing
  • Process and quality control
  • Environmental management
  • Teaching and training


Chemical and Process Engineering at Moi University

The department of Chemical & Process Engineering at Moi University was established upon the recommendation of the Mackay Commission (The Presidential Working Party of the Establishment of a Second University in Kenya).

The department, currently the only one of its kind in the country at University level, was established in 1991 with the broad aim of producing graduands who can fit into most fields of Kenya's Chemical Process Industries such as petroleum, plastics, fertilizers, detergents, paper, glass, metals, gases, cement, food, beverages and paints products.

The training programme in the department is intended to go beyond the scientific grounding of the discipline to the provision of an atmosphere in which students develop problem solving approaches and become innovative thinkers. Thus, most courses in the program are linked with an element of design.

Great emphasis is placed on practical work, which forms a vital part of the programme. The graduates of this programme are therefore able to make an immediate contribution to the profession in the industries, research institutions or any other such relevant areas.

The main objectives of the programme can be outlined as below:

  1. To prepare graduates capable of designing, constructing, operating and maintaining chemical production systems with due consideration of economic and human factors.
  2. To inculcate confidence, skill and know-how essential for developing techniques required for conventional and non-conventional production processes.
  3. To impart proper vocational attitude necessary for practical orientation.
  4. To strengthen chemical engineering profession in the country.

Design of the Degree Programme

Chemical & Process Engineering is the broadest of all engineering disciplines. To prepare students for the ever-widening reach of the profession requires that emphasis be placed first on the basics. The first two years of the five-year programme provide the required background knowledge in physical sciences and related engineering disciplines such as electrical, mechanical and structural engineering. Basic chemical engineering courses are also introduced at this level. In the third and fourth year the core chemical engineering courses on transport processes, thermodynamics and reactor engineering are taught.

In the fifth and final year of the programme emphasis is laid on application of chemical engineering principles in design, management and technology courses.


The Bachelor of engineering programme in chemical & Process Engineering is of five-year duration, each year comprising of two semesters. During the course the students undergo 12 weeks of workshop practice at the end of the second year and two industrial attachment periods of 12 weeks at the end of the third and fourth years.

Regular and Privately Sponsored Students Programme (PSSP)

The department admits students through both regular programme and PSSP. Regular admissions are done through Joint Admissions Board of Kenyan Public Universities. The students are eligible for Kenyan Government Scholarships/loans. Due to limited seats, the admission in this category is highly competitive.

Students admitted under PSSP category pay the tuition and other fees and are not eligible for Government Loan Scholarship.

This category was created to cater for large member of eligible students who are not admitted in regular category due to very limited seats. The department encourages admissions in this fees paying category.

Chemical Laboratory

Unit Operation Laboratory is equipped with standard analytical and measurement equipment. Pilot plant equipment for batch and continuous distillation, extraction and reactors are available for research and training.

Research & Consultancy

The department staff are involved in research and consultancy activities in areas of chemical and process industries.


Moi University has a modern library containing relevant technical books and journals.



Head of Department Dr. Milton M. Arimi
Associate Professors: Prof. Kirimi H. Kiriamiti PhD., (Enciacet, Toulouse France), Msc., Bsc. Chemical Eng. (Technical University of Wroclaw).

Prof. Saul S. Namango PhD. (Brandenburg Technical University, Germany), MSc. (Env.) (Brandenburg Technical University, Germany), Postgraduate Diploma (University of Karlsruhe, Germany), MSc. (Eng.) (Belarussian State Technical University, Belarus). Currently serving as Director, Eldoret West Campus

  Prof. Anil Kumar PhD. Energy Studies (Moi University); Msc. (Indian Institute of Technology-India); BTech. Chemical Eng. (Nagpur University- India)
Senior Lecturers:  
Dr. David M. Menzwa PhD. Leningrad Forest Academy of Technology USSR, Msc., Bsc.,  Chemical Engineering Leningrad Forest Academy of Technology USSR,
Dr. Milton M. Arimi PhD.  ( Technical University of Berlin ) Msc. Industrial Biotechnology, (Royal Institute of Technology-Sweden); MSc. Environmental Management (University of Boras, Sweden), BTech. Chemical & Process Eng. (Moi University) Head of Department
Lecturers Dr. Cyprian M. Simiyu  PhD.  (Durban University of Technology) Msc. Chemical Engineering ( Durban University of Technology), B.Tech. Chemical & Processing Eng.,( Moi University)
Mr. Simon O. Osembo   Msc., (Instituto Politechnico Nacional-Mexico); BTech., Chemical Engineering, (Moi University)
Mr. Francis M. Kagara Msc. Chemical Engineering, Jassy Polytechnic-Romania; Btech. Chemical Engineering, (Jassy Polytechnic- Romania)
Mr. Samwel C. Sarmat Msc., Chemical Process Eng. (Technical University of Wroclaw)


Mr. Abraham K. Chirchir Currently pursuing MSc. Chemical Eng. (Moi University), B.Tech. Chemical & Process Eng.(Moi University)
  Mr. Wiseman T. Ngigi MSc. Chemical Eng. (Moi University), BTech. Chemical & Process Eng.(Moi University)
  Dr. Cleophas M. Achisa. PhD. ( Durban University of Technology), Msc. Chemical Eng.(Durban University of Technology ), B.Tech. Chemical & Processing Eng., (Moi University). 
  Ms. Florence Ajiambo Currently pursuing MSc. in Chemical Engineering, B.Tech. Chemical & Process Eng. (Moi University)
  Dr. Moses NyoTonglo Arowo  PhD. Chemical Engineering (Beijing University of Chemical Technology), MSc. Chemical Engineering (Beijing University of Chemical Technology), B.Tech., Chemical & Process Eng .(Moi University).

Mr. Anthony Muliwa Currently pursuing PhD. Chemical Engineering (Tswane University of Technology); MSc. Chemical Engineering (Tswane University of Technology), B.Tech., Chemical & Process Eng. (Moi University)
(On Study Leave)

Designed by Moi University ICT Department