K. S. N. Kamarudin

Universiti Teknologi Malaysia | UTM · Department of Petroleum and Renewable Eenergy Engineering

The potential of kenaf (Hibiscus cannabinus L.) as hydrogen materials was investigated. Kenaf core from National Kenaf and Tobacco Board (NKTB), Kelantan, Malaysia have been synthesized and characterized to achieve the improvement on kenaf’s surface support, and then evaluated the hydrogen adsorption performance of the modified nickel-kenaf adsorbe...

In this study, surface chemistry modification of kenaf adsorbent in adsorptive hydrogen storage system was computationally investigated using Brunauer-Emmett-Teller (BET) surface area, thermogravimetric analysis (TGA), field emission scanning electron microscopy (FESEM), and elemental dispersion X-ray (EDX) analysis, in which the suitability of the...

Carbon dioxide is one of the main concern in the environment when it comes to energy usage of fuel, even the fuel is coming from natural gas sources. Apart from endangered the environment, carbon dioxide also affects the caloric value of the natural gas itself. The presence of carbon dioxide as contaminants is a nuisance for oil and gas industry as...

This research was carried out to study the sorption capacity of crude oil using acidmodified green-based adsorbents originated from kenaf core and coconut shell. The adsorbent modification was impregnated in the lauric acid, phosphoric acid, and citric acid solution via the conventional method known as wetness impregnation technique. A comparison s...

An agro-based adsorbent from kenaf (Hibiscus cannabinus L.) for CO2 removal was prepared by functionalizing it with amine. Amine functionalization improves the adsorbates–adsorbent interaction through the presence of basic active sites on the adsorbent surfaces. Several amines (MEA, DEA, MDEA, AMP, PEI, DETA, TETA, TEPA, DIPA, PEHA, TEA, and DGA) h...

This study modified the rotating disc contactor (RDC) structure to optimize its performance for CO2 separation from natural gas feed using stable emulsion liquid membrane (ELM). Based on parametric study of absorption of CO2 from natural gas feed into ELM, the mass transfer behaviour in the RDC system was optimized. Rotor diameter, stator inner dia...

The increase concentration of CO2 in the atmosphere is linked with global climate change. Among the technology options used for CO2 capture, there is a growing interest in using adsorption method for separation process. Inspired by the most applicable technology of amine–based chemical absorption for capturing CO2, the development of amine–function...

Absorption using aqueous alkanolamine is commonly used in industry to remove the carbon dioxide. However it has several weaknesses such as corrosion problem and low absorption rate. Emulsion liquid membrane is introduced as an alternatives method for CO2 absorption because it can reduce the corrosion problem and the formation water droplets creates...

The capture of carbon dioxide (CO2) by aqueous alkanolamine is the most cost effective technology available today. However, some problem such as amine losses, corrosion and low absorption rate arise when aqueous alkanolamines is used as an absorbent. To overcome these problems, liquid emulsion was introduced as an alternative for CO2 removal. Howev...

Kenaf fiber has been recognised as a new material for adsorption based on its porous structure. However, previous studies have proved that modified kenaf could give better interaction towards adsorbates than the raw kenaf during the adsorption. In this study, kenaf core fiber has been modified using Nickel metal (Ni-metal). Different concentration...

In this paper, titanium oxide nanoparticles were produced using the hydrothermal method and embedded in PVA-alginate beads to remove Pb(II) ions from aqueous solutions. The kinetics of the photocatalyst process was elucidated by varying operating parameters such as pH (3, 7 and 10) and initial Pb(II) concentrations (25, 50, 100 and 200 mg/L). The f...

Carbon dioxide (CO2) removal from natural gas attracts more attention than other impurities due to its corrosiveness property and it also possess no heating value in the sales natural gas. Amine based chemical absorption has been used commercially for CO2 separation in gas processing plant. However, the liquid amine based processes pose operating d...

Carbon dioxide (CO2) removal is increasingly important because a high CO2 concentration in the atmosphere leads to global climate changes. In addition, the removal of CO2 is also required in cryogenic plants to prevent CO2 solidification. The removal can be achieved by using methods such as liquid absorption, solid adsorption cryogenic techniques,...

Introduction Experimental Results and Discussions Conclusion Acknowledgment References

Human activities are one of the factors that contribute to the increasing of mercury levels in the world. High level mercury not only can cause health effect to the human organs due to long-term exposure but may also affect the equipments in plant and easily poison the catalytic process. A lot of research has been conducted to overcome the mercury...

Mercury is a natural occurring element and present in various concentrations in the environment. Due to its toxic effects, it is desirable to research mercury sensitive materials to adsorb mercury. This paper describes the preparation of Au nanoparticles for mercury adsorption by using a microwave (MW)-polyol method in the presence of three differe...

Mercury is a natural occurring element and present in various concentrations in natural gas. Mercury is not only hazardous to human health and the environment but could also attack equipment components resulting in mechanical failure and gas leakage. This paper describes the preparation of various sizes and shapes of Au nanoparticles for mercury ad...

For the last two decades polymeric membranes have been used in several gas separation processes. For the high selectivity and permeability various types of membranes have been developed. Thin layers to high dense and hollow fiber to asymmetric wounded materials to determine the effective separation of CO2 from CH4 were used. Ideal membrane material...

The adsorption of two proteins, cytochrome c and α-chymotrypsin onto H-Beta zeolite was studied. The effect of pH on the adsorption capacity was studied at three different pHs, namely 3, 6, and 9. The adsorption capacity for cytochrome c and α-chymotrypsin was found to be the highest at pH 9 and pH 6 respectively. Increase in pH higher than their p...

Liquid membranes are emerging as solid, liquid and gaseous extractors, replacing the conventional methods of separation for metals, enzymes and gases. For carbon dioxide separation, amine based chemical absorption have been commercially used because of their ability to form complexes at moderate temperature. However, the use of chemical absorption...