%C Perak
%T Modeling of wax crystallization in production of lube oil base stock in solvent dewaxing
%A N.D. Mokhlif
%A H.H. Al-Kayiem
%A M.B. Baharom
%D 2011
%R 10.1109/NatPC.2011.6136400
%O cited By 0; Conference of 3rd National Postgraduate Conference - Energy and Sustainability: Exploring the Innovative Minds, NPC 2011 ; Conference Date: 19 September 2011 Through 20 September 2011; Conference Code:88531
%J 2011 National Postgraduate Conference - Energy and Sustainability: Exploring the Innovative Minds, NPC 2011
%L scholars1748
%X A mathematical model of a steady heat transfer and crystallization was established in double pipe scraped surface heat exchangers and chillers for solvent dewaxing process. The model equations were numerically solved to obtain, the temperatures distribution, wax volume fraction, crystals number and their size in the wax-oil-solvent solution. The prediction of the physical properties and the nucleation and crystal growth constants based on the adjustable selection of the higher carbon number as a solute and light ones as liquid. The procedure depends on experimental measurements of the carbon number distribution in the feedstock, dissolved temperature, onset crystallization temperature, and the wax content. The measurement results were linked to a solubility model, which attaches the wax content and the dissolving temperature of the feed stock to choose the wax compound. The numerical model results showed that the proposed solubility model give a good estimation of the wax crystals characteristics of such complex process. © 2011 IEEE.
%K Base stock; Carbon number; Carbon number distribution; Complex Processes; Crystallization temperature; Experimental measurements; Growth constants; Lube oil; Measurement results; Model equations; Scraped surface heat exchangers; Solubility models; solvent dewaxing; Wax content; wax crystallization; Wax crystals, Crystal growth; Dewaxing; Dissolution; Innovation; Manufacture; Numerical methods; Numerical models; Solubility; Sustainable development, Solvents