Monoethanolamine Pulping Of EFB Agro-Biomass: Effect of Operational Variables on Pulp Screen Yield

Henry Okwudili Chibudike, Eze Mgbachiuzo, Nelly Acha Ndukwe, Nkemdilim Ifeanyi Obi, Olubamike Adetutu Adeyoju and Eunice Chinedum Chibudike
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Henry Okwudili Chibudike: Chemical, Fiber and Environmental Technology Department, Federal Institute of Industrial Research, Oshodi, F.I.I.R.O., Lagos-Nigeria
Eze Mgbachiuzo: Chemical, Fiber and Environmental Technology Department, Federal Institute of Industrial Research, Oshodi, F.I.I.R.O., Lagos-Nigeria
Nelly Acha Ndukwe: Department of Chemical Sciences, College of Basic & Applied Sciences, Mountain Top University, Magoki, Ogun State, Lagos-Nigeria
Nkemdilim Ifeanyi Obi: National Oil Spill Detection and Response Agency (NOSDRA), Abuja-Nigeria
Olubamike Adetutu Adeyoju: Production, Analytical and Laboratory Management, Federal Institute of Industrial Research, Oshodi, F.I.I.R.O., Lagos-Nigeria
Eunice Chinedum Chibudike: Planning, Technology Transfer and Information Management, Federal Institute of Industrial Research, Oshodi, F.I.I.R.O., Lagos-Nigeria

International Journal of Research and Innovation in Applied Science, 2021, vol. 6, issue 1, 10-16

Abstract: In this research work, pulping trials were carried out using the MEA process. The operating conditions such as 50%, 75%, 100% MEA concentration, 150, 160, 170oC cooking temperature, and 60, 90, 120minutes cooking time at constant 4/1 liquor biomass ratio were investigated systematically to establish optimal pulping conditions. This paper investigates the effect of operational (independent) variables i.e. cooking temperature, cooking time, and liquor concentration at constant liquor-biomass ratio of 1/4 on pulp screened yield (dependent variable). By using a central composite factorial design (CCD), equation relating the dependent variable to the different independent variables was derived; which reproduced the experimental results for the dependent variable with errors less than 15%. The lignin content of EFB (18.29%) was low; indicating that EFB should be easier to pulp. The optimum cooking conditions for MEA pulping were 75% MEA concentration, 90 minutes cooking time, and 150°C cooking temperature. The laboratory-scale experimental results indicated that MEA-pulping process is particularly well suited for the pulping of agro-based fibers e.g. EFB of Oil Palm, which was delignified to a low kappa number value of 17.5, pulp yield of 54.73% and screen yield of 53.27% recording a reject of only 1.46%, indicating a good alternative to the Kraft pulping process because of its less polluting effect (environmental impact).

Date: 2021
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