Universiti Teknologi Petronas

About: Universiti Teknologi Petronas is a education organization based out in Ipoh, Malaysia. It is known for research contribution in the topics: Adsorption & Ionic liquid. The organization has 6127 authors who have published 11284 publications receiving 119400 citations.

Cleaner Production of Hydrogen and Syngas from Catalytic Steam Palm Kernel Shell Gasification Using CaO Sorbent and Coal Bottom Ash as a Catalyst

Abstract: The catalytic-sorbent based steam gasification of palm kernel shell is examined in a pilot-scale integrated fluidized-bed gasifier and fixed-bed reactor using coal bottom ash as a novel catalyst for cleaner hydrogen and syngas production. It enhances tar cracking and enriches hydrogen composition as an effective catalyst. The effect of temperature, steam/biomass ratio, CaO/biomass ratio, and coal bottom ash wt % is evaluated for hydrogen yield, syngas composition, lower and higher heating values, and efficiency of carbon conversion, gasification, and cold gas. Steam is the most influential factor, and it enhances the hydrogen yield from 35.7 to 79.77%. The CaO/biomass ratio and coal bottom ash have a positive impact on hydrogen and syngas yield with CO2 sorption and catalytic effect, respectively. The enhancement of hydrogen and syngas composition is due to the catalytic effect of Fe, Al, Mg, and Ca contents present in coal bottom ash as detected by X-ray fluorescence (XRF). The metals content of Fe, Al, ...

Taguchi's parametric design approach for the selection of optimization variables in a refrigerated gas plant

Abstract: This paper presents a systematic procedure for selecting optimization variables in a refrigerated gas plant (RGP) using the Taguchi method. A dynamic RGP model developed under HYSYS environment is utilized as a test bed. Nine variables with three levels each are employed for optimizing RGP profit. These optimization variables are selected due to their roles as manipulated variables in controlling the process. Results are validated by comparing optimum values of RGP profit obtained through a set of HYSYS experiments and those from analyses of means.

Temporary cluster based routing for Underwater Wireless Sensor Networks

Abstract: During the last couple of decades Underwater Wireless Sensor Networks (UWSN) have attracted more attention for ocean monitoring systems. Due to adverse environment, UWSN face many problems like bandwidth limitations, high error probability, node movements and 3-dimensional space and with such challenges, we need a robust and scalable architecture for providing a self configuring network of distributed nodes. In order to handle the problem of large propagation delays and unreliable link quality, many authors proposed multi-hop data delivery routing schemes. But, such multi-hop routing protocols drain more energy of the nodes near the sink. In this paper, we proposed a mobility aware routing protocol, called “Temporary Cluster Based Routing” which not only requires equal energy consumption for all the nodes throughout the network but also it helps to save energy, as it prefers to send the sensed data over short distances. Moreover, it does not require any location information of sensor nodes and only a small number of nodes are involved during the end-to-end routing process. This makes it suitable not only for stationary and mobile networks but for the hybrid networks as well.