03. Journal Article: Recent submissions

Now showing items 651-666 of 666

Microwave Drying at Various Conditions Modeled Using the Reaction Engineering Approach (REA)

Putranto, Aditya; Xiao Dong Chen (Taylor & Francis, 2016)

One of the most significant process intensification schemes in drying is microwave drying. Modeling the process of microwave drying is very useful. The lumped reaction engineering approach (REA) is now coupled with ...
Drying Kinetics Parameters of Various Food Materials Employed in the Reaction Engineering Approach (REA) to Describe Global and Local Drying Rates

Putranto, Aditya; Xiao Dong Chen (Taylor & Francis, 2015)

An effective drying model should be accurate yet require a small number of experiments to generate the parameters. The relative activation energy of various food materials, important drying kinetic properties used in ...
Drying of a System of Multiple Solvents: Modeling by the Reaction Engineering Approach

Putranto, Aditya; Xiao Dong Chen (Wiley Online Library, 2016)

Drying is a very important industrial operation in society. In drying, solute may dissolve in an aqueous solvent, a nonaqueous solvent or a mixture of solvents. Many mathematical models have been published previously to ...
High-yield Hydrogen Production by Supercritical Water Gasification of Various Feedstocks : Alcohols, Glucose, Glycerol and Long-chain Alkanes

Susanti, Ratna Frida; Dianningrum, Laras W.; Yum, Taewoo; Kim, Yunje; Lee, Youn-Woo; Kim, Jaehoon (Elsevier, 2014)

Continuous supercritical water gasification (SCWG) of various feedstocks of C1–C16 was conducted to producehydrogen-rich gas. These feedstocks represent model compounds of biomass such as methanol/ethanol (alcohol-type), ...
Hydrothermal Gasification of Pure and Crude Glycerol in Supercritical Water : A Comparative Study

Dianningrum, Laras W.; Haemin, Choi; Yunje, Kim; Jung, Kwang-Deog; Susanti, Ratna Frida; Kim, Jaehoon; Sang, Byung-In (Elsevier, 2014)

A comparative gasification study between pure glycerol and two different kinds of crude glycerol is conducted in supercritical water under various operating parameters to investigate the effect of different compositions ...
Supercritical Ethanol as an Enhanced Medium for Lignocellulosic Biomass Liquefaction : Influence of Physical Process Parameters

Brand, Steffen; Susanti, Ratna Frida; Kim, Seok Ki; Lee, Hong-shik; Kim, Jaehoon; In Sang, Byung (Elsevier, 2013)

In this study, the influence of various physical process parameters on the liquefaction of lignocellulosic biomass (pine wood) in supercritical ethanol was investigated. The parameters include reaction temperature (280e400 ...
A New Strategy for Ultralow Biofouling Membranes : Uniform and Ultrathin Hydrophilic Coatings Using Liquid Carbon Dioxide

Susanti, Ratna Frida; Han, Yang Soo; Kim, Jaehoon; Lee, Young Haeng; Carbonell, Ruben G. (Elsevier, 2013)

Highly stable, uniform and ultrathin hydrophilic polymer coatings on the surface as well as in the pores of a PVDF microfiltration (MF) membrane are obtained by coating a hydrophilic monomer in liquid carbon dioxide ...
High-yield Hydrogen Production From Glucose by Supercritical Water Gasification Without Added Catalyst

Susanti, Ratna Frida; Dianningrum, Laras W.; Yum, Taewoo; Kim, Yunje; Lee, Byung Gwon; Kim, Jaehoon (Elsevier, 2012)

Continuous supercritical water gasification of glucose is investigated with a recently developed updraft gasification apparatus under various conditions: temperatures of 600 - 767 degree C, residence times of 15-60 s, ...
Preparation and Characterizations of Carbon Nanospheres Derived from Activated Carbons and Palm Oil as Anode Materials of Lithium Secondary Batteries

Arie, Arenst Andreas; Kristianto, Hans; Susanti, Ratna Frida; Devianto, Hary; Halim, Martin; Lee, Joong Kee (American Scientific Publishers, 2015)

Carbon nanospheres (CNSs) with diameter of around 100 nm were synthesized by pyrolysis technique using activated carbon as Fe-catalyst support and palm oil as carbon precursors with various ratios. Firstly, the Fe catalyst ...
Synthesis of Turpentine Oil Based Carbon Nanospheres by Nebulized Spray Pyrolysis Method

Arie, Arenst Andreas; Konstantia, Inez Devina; Susanti, Ratna Frida; Devianto, Hary; Halim, Martin; Joong Kee Lee (American Scientific Publishers, 2016)

In this study, production of carbon nano-spheres (CNSs) was conducted by the decomposition of botanical hydrocarbons, known as turpentine oil (C10H16) using activated carbon as a substrate. The oil decomposition was ...
Structural and Preliminary Electrochemical Characteristics of Palm Oil based Carbon Nanospheres as Anode Materials in Lithium Ion Batteries

Arie, Arenst Andreas; Kristianto, Hans; Susanti, Ratna Frida; Devianto, Hary; Halim, Martin; Joong Kee Lee (Korean Carbon Society, 2016)
Integration of physical and chemical treatment on the extraction of starch from Canna edulis. Ker. rhizome

Witono, Judy Retti; Miryanti, Y.I.P. Arry; Santoso, Herry; Tan, Daniel (Scientific Research Publishing, 2013)

The extraction of Canna edulis Ker. starch from its rhizome was performed using 2 different types of press (hydraulic press and screw press) and with the addition of Na-metabisulphite and NaOH (in the range of concentration ...
The effect of crosslinker and pore generated on selective adsorbent (Cu2+) based on grafting of acrylic acid onto cassava starch

Witono, Judy Retti; Miryanti, Y.I.P. Arry; Henrietta (Canadian Center of Science and Education, 2015)

The technology development in many industries nowadays, such as electronic industry produces heavy metal wastes which may pollute our environment. The use of adsorbent as a heavy metal removal from soil and water is one ...
Water absorption, retention and the swelling characteristics of cassava starch grafted with polyacrylic acid

Witono, Judy Retti; Heeres, Hero J.; Janssen, Leon P.B.M.; Noordergraaf, Inge W. (Elsevier, 2014)

An important application of starch grafted with copolymers from unsaturated organic acids is the use as water absorbent. Although much research has been published in recent years, the kinetics of water absorption and the ...
Improved homopolymer separation to enable the application of 1H NMR and HPLC for the determination of the reaction parameters of the graft copolymerization of acrylic acid onto starch

Witono, Judy Retti; Marsman, Jan Henk; Noordergraaf, Inge W.; Heeres, Hero J.; Janssen, Leon P.B.M. (Elsevier, 2013)

Graft copolymers of starch with acrylic acid are a promising green, bio based material with many potential applications. The grafting of acrylic acid onto cassava starch in an aqueous medium initiated by Fenton’s reagent ...
Graft copolymerization of acrylic acid to cassava starch—Evaluation of the influences of process parameters by an experimental design method

Witono, Judy Retti (Elsevier, 2012)

The graft copolymerization of cassava starch with acrylic acid was investigated using a free radical initiator system (Fe2+/H2O2 redox system) in water. A comprehensive understanding of the important variables and their ...

Now showing items 651-666 of 666

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