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Department of MS Energy Systems Engineering

FAST TRACK BIODIESEL PRODUCTION

Project Title Fast Track Biodiesel Production
Name of Client NRG Biofuels Inc Calgary Canada
Project Description  
SCME NUST has achieved a major breakthrough in bio-diesel production technology, obliterating the drawbacks associated with the age old conventional hydroxide based technology practice in Pakistan and across the world for the last many decades.  The new process using nano catalyst has been tested at the 150 liters batch closed-loop circulation unit. The work was presented in the ASEAN Workshop on new and renewable technologies (June 2009), published by the American Institute of Physics (Vol.1169, pp. 197-205, 2009) and cited by NASA/Harvard. A formal joint US patent in collaboration withNRG Biofuels Canada has already been filed. The research is further highlighted in the World Future Energy Summit (a global energy moot featuring world leaders, experts and capital ventures) at Abu Dhabi (January 18-21, 2010).A Concept paper was submitted by SCME NUST was forwarded to the ASEAN Secretariat by MoST, which marksPakistan presence at this important forum. Project worth 180,000 USD for continuous production of Biodiesel has received favorable first review from the ASEAN. Comparison of the traditional and Fast Track process parameters is presented below.
Technology Platform Conversion Rate Temperature Conditions By Product Yield
Investigated Technology 05 minutes Process 25°C Biodiesel 99%
Glycerin 1.0 %
Conventional Technology 90 minutes Process 70-80°C Glycerin 10-12 %
Soap 2-4.0 %
Excess Methanol

SCALING UP AND PRODUCTION OF A NOVEL CATALYST PRODUCTION SYSTEM AT PILOT SCALE.

Project Title Scaling up and Production of a Novel catalyst production system at pilot scale.
Name of Client Whole Biodiesel Industry (Conversion of Fatty Acids into FAME)
Project Description  
More Energy efficient and rapid process for the production of bio-diesel using heterogeneous photosensitive catalyst is achieved.The process and catalyst invention is filed as US patent application (Title: Catalysts and Methods for the Production of Biodiesel;Registration Number 54111. dated 07-08-2011).Considerable quantities of plant oil will be available for conversion to Biodiesel in foreseeable future, some 90,000 tons by 2013.Keeping this in view, the catalyst production process is being scaled up according to schematic appended below, to ensure availability of catalyst on commercial scale.The new catalyst promises to benefit some 20 bl. liters of Biodiesel produced globally.

EXTRACTION OF ALGAL OIL EMPLOYING IN-SITU OIL EXTRACTION TECHNOLOGY

Project Title Extraction of Algal oil using Super Critical Fluid Technology
Name of Client NRG Biofuels Inc Calgary Canada
Project Description  
Super Critical Fluid Extraction (SCFE) is relatively new extraction process that has attracted great interest in recovery of algal oil using carbon dioxide as the ideal fluid. In recent years, supercritical fluids (SCFs) have been of interest in the biotechnological processes. A SCF uniquely displays a wide spectrum of solvation power as its density is strongly dependent to upon temperature and pressure. The unusual physicochemical properties of SCF in relation to their engineering applications in polymer and waste processing have been discussed. Supercritical-carbon dioxide (SC-CO2) is the most commonly used fluid and the low critical temperature (31.1°C) and pressure (73 bar) of which make it an ideal medium for processing volatile product. Indigenous designing and fabrication of supercritical fluid extraction apparatus is being undertaken in collaboration with local manufacturing industry. This is an ambitious project requiring simulation, design and fabrication. The capacity of the SCFE unit selected is 10 L. This is a sizeable pilot plant in this field. Rigorous computer simulation has been performed, results are appended below.

GAS CLEANING UNIT FOR SYN GAS

Project Title Gas Cleaning Unit for Syn gas.
Name of Client Planning Commission of Pakistan/GOP/Private Entrepreneurs/Industry
Project Description  
Syngas from the gasifier is passed through a sequence of cleaning stages for separation of suspended materials and removal of acid gases. The suspended matter is typically removed employing cyclone separator in league with electrostatic precipitator. Sour gas is stripped off impurities including sulphur by scrubbing the dust-free syngas with diethylene amine (DEA) in an absorption column. The absorber utilizes amines for the H2S and CO2 removal and this is recovered back by distillation column to separate the absorbed gases and recycle the DEA to absorber for reuse. Computer simulation has been performed for the latter process using Aspen HYSYS software according to the following flow diagram:

INTERFACE ENGINEERING TO PRODUCE STOUTER FILAMENT WOUND CASING GAS STORAGE CYLINDERS

Project Title Interface Engineering to produce Stouter Filament Wound Casing Gas Storage Cylinders. for Gas Compression in Bioenergy sector (Patent Number .140917)
Name of Client Bioenergy Sector/ Public Transport
Project Description  
The technical problem faced by the fiber-reinforced composites is that at less than an optimum level of adhesion, the load-bearing capacity of the composite is reduced and the structural component size and ply thickness needs amplification. Either option is undesirable because it negates a significant portion of the weight and cost advantage of the composite structural component over an equivalent monolithic material. The current invention is directed toward the chemical surface treatment of aramid fibers through the attack of amide hydrogen atoms available on aramid surface. The said treatment introduces reactive pendant groups on fiber surface that react and form covalent bonds with epoxides in subsequent curing reaction during fabrication of the aramid fiber-epoxy composite. By virtue of the said chemical reaction the said treatment improves fiber/matrix adhesion. Chemical interaction with phthalic anhydride (PA) and aramid fiber (Kevlar fiber) is confirmed in differential scanning calorimeter (DSC) and Fourier transformation infrared (FTIR) measurements. The primary advantages accrued by the process of the present invention are (i) increment in the aramid fiber-epoxy adhesion with cheap and readily available interfacial agent without compromising the said fiber strength (ii) increment in the dynamic elastic modulus of the fabricated fiber-epoxy composite to the tune of 200 %. (iii) Concomitant advantage allowing higher pressure in the pressure containers fabricated from the said improved composite.

INDIGENOUS FABRICATION OF COMPOSITES WIND MILL ROTORS ACCORDING TO NACA PROFILE

Project Title Indigenous Fabrication of composites wind mill rotors according to NACA profile
Name of Client Renewable Energy Sector
Project Description  
Indigenous fabrication of 500 W, 1.5m windmill rotors with a hub height of 6.0m above ground level as part of NUST-AERO-Fiber Tech outreach industrial link project. Mirror process technique with matching receptacles is used to fabricate the windmill rotors according to NACA 4527 aerofoil profile. Full scale load-deflection/bending stiffness tests are conducted using simulated aerodynamic load with incremental loading. An average bending stiffness of 14.85 KN/m and mean displacement of 21.17 mm for the maximum applied load of 0.35 KN is recorded at a loading rate of 0.05 KN/sec. for a full scale load range of 25 KN. These results demonstrate that the manufactured composite rotors process adequate structural integrity, subsequently verified in actual windmill operation at 400 rpm. The installed windmill now adorns the skyline of this school at NUST.

The profile is generated in MAT-Lab and translated to preform, which is used to fabricate the receptacles. Rotors are assembled on the windmill and tested for vibration-free and smooth operation under induced rpm. SEM indicates disparate morphology within different sections of the fabricated rotor. Interfacial fracture in one region is accompanied by cohesive fracture in the other. This suggests the employment of interfacial agents to enhance fiber-matrix interaction for more uniform structure at the micro level.​
Refreshing data...