Browsing Chemical Engineering by Type "Conference"
Now showing items 1-20 of 148
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A comprehensive rheological study for a flowing polymer-based drilling fluid used for wellbore strengthening
( Society of Petroleum Engineers (SPE) , 2020 , Conference)Loss circulation encountered in highly fractured formations, depleted reservoir, or HP/HT intervals is the root cause of many problems plaguing the oil and gas sector for many years. High pore pressure narrows the window ... -
A Mechanistic Model for Wellbore Cleanout in Horizontal and Inclined Wells
( Society of Petroleum Engineers (SPE) , 2021 , Conference)The accumulation of rock cuttings, proppant, and other solid debris in the wellbore caused by inadequate cleanout remarkably impedes field operations. The cuttings removal process becomes a more challenging task as the ... -
A novel two-step metal oxide - Metal sulfate water splitting cycle for the production of solar hydrogen
( AIChE , 2015 , Conference)This paper reports the thermodynamic analysis of solar H2 production via two-step thermochemical Strontium oxide - Strontium Sulfate (SO-SS) water splitting cycle. The first step belongs to the exothermic oxidation of SrO ... -
A novel two-step metal oxide - Metal sulfate water splitting cycle for the production of solar hydrogen
( AIChE , 2015 , Conference)This paper reports the thermodynamic analysis of solar H2 production via two-step thermochemical Strontium oxide - Strontium Sulfate (SO-SS) water splitting cycle. The first step belongs to the exothermic oxidation of SrO ... -
A process-integration framework for Abnormal Situation Management (ASM): A systematic approach with application to Qatar's industrial needs and opportunities
( AIChE , 2013 , Conference)Qatar is a leading producer of a variety of gas products including LNG, GTL and a wider spectrum of petrochemical intermediates and specialty chemicals. The country is blessed with the third largest natural gas reserve ... -
A theoretical study of gas adsorption on calcite for CO2 enhanced natural gas recovery
( European Association of Geoscientists and Engineers, EAGE , 2019 , Conference)The adsorption of gas molecules (CO2, CH4, H2O, H2S and N2) on calcite (104) has been studied by means of Density Functional Theory, in order to investigate the molecular characterization of Enhanced Gas Recovery (EGR) ... -
A/C condensate for water reuse: An approach towards environmental sustainability in Doha
( American Society of Agricultural and Biological Engineers , 2012 , Conference)A/C Condensate is a relatively untapped alternative source of water that might be readily available especially in hot arid climates. The objective of this study is to establish the feasibility of the A/C condensate as the ... -
An accurate finite volume method using fourth order Adams scheme on triangular grids for the Saint-Venant System
(2013 , Conference)In this study, a new finite volume method is developed for shallow water equations on a rotating frame. Most upwind methods, which perform well for gravity waves, lead to large oscillations and/or numerical damping for ... -
Advanced Polymeric Materials with Exceptional Carbon Dioxide Capture Capacities
( Hamad bin Khalifa University Press (HBKU Press) , 2011 , Conference)Carbon dioxide (CO2) emissions resulting from combustion of fossil based fuels increasing the atmospheric CO2 concentration (currently at 393 ppm) is indubitably an alarming environmental issue such as an irreversible ... -
Advanced wastewater treatment using microalgae: Effect of temperature on removal of nutrients and organic carbon
( Institute of Physics Publishing , 2017 , Conference)This study evaluated the use of mixed indigenous microalgae (MIMA) as a treatment process for wastewaters and CO2 capturing technology at different temperatures. The study follows the growth rate of MIMA, CO2 Capturing ... -
Anchor-Tenant models for the synthesis of eco-industrial parks through carbon-hydrogen-oxygen symbiosis networks
( AIChE , 2017 , Conference)An eco-industrial park (EIP) is a network of entities who choose to interact by exchanging byproducts, wastes and/or energy to gain benefits greater than unintegrated operations. The concept is particularly attractive for ... -
Application of a property-based inherently safety quantification framework for integrating risk assessment into process safety life cycle
( AIChE , 2018 , Conference)Process plant involves different types of risks which need to be managed appropriately to avoid dangerous incidents. Some risks are associated with design decisions such as choice of unit, chemicals or design layout etc. ... -
Application of Artificial Neural Network Approach for the Kinetic Parameters Determination of Pyrolysis Aseptic Waste Packages
( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference)The thermal degradation behavior for the pyrolysis of aseptic packages was studied using thermogravimetric analyzer under nitrogen atmosphere at the temperature range of 50–900°C with five different heating rates (10, 20, ... -
Application of DFT in iron sulfide scale removal from oil and gas wells
( European Association of Geoscientists and Engineers, EAGE , 2019 , Conference)Scale formation including those formed by iron sulfides have been a major hassle in the upstream sector of the oil and gas industry for many decades. Iron Sulfide scales including pyrite (FeS2) and troilite (FeS) often ... -
Applications of Machine Learning Methods to Predict Hole Cleaning in Horizontal and Highly Deviated Wells
( Society of Petroleum Engineers (SPE) , 2023 , Conference)Machine learning (ML) has become a robust method for modeling field operations based on measurements. For example, wellbore cleanout is a critical operation that needs to be optimized to enhance the removal of solids to ... -
Applications of Matlab optimization capabilities in the design of N-continuous stirred tank bioreactors connected in series
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference)The optimal design (variable volume) of continuous stirred tank reactors (CSTR's), in series, performing biological conversion of organic materials, was derived. The optimal design was based on the minimum overall reactor ... -
Aqueous ethylaminoethanol blended solvents: Promising candidates for CO2 capture
( AIChE , 2015 , Conference)This paper reports the investigation of effect of temperature on physico-chemical properties of formulated solvent (comprises on ethylaminoethanol, N-methyl-2-pyrollidone, and K2CO3/KHCO3) and reaction kinetics of the ... -
Assessment of carbon bio-fixation by mixed indigenous microalgae
( AIChE , 2018 , Conference)This study assesses the potential use of mixed Indigenous Microalgae (MIMA) for carbon capture from flue gases in a photo-bioreactor. The effect of inlet CO2 concentration on the carbon biofixation rate was investigated. ... -
Bio-Based Self-Healing Concrete for Sustainable and Durable Concrete Infrastructure
( Qatar University Press , 2023 , Conference)In this study, bio-self-healing concrete was manufactured using a natural phenomenon called microbial-induced calcium carbonate precipitation (MICP). The bacillus cereus bacteria isolated from Qatari soil was used for this ... -
Carbon dioxide hydrogenation to value-added products using Cu-based catalytic materials
( Institute of Physics , 2023 , Conference)In this work, we report on the synthesis and evaluation of catalytic materials composed of copper/calcium oxide/alumina (Cu/CaO/Al2O3) for carbon dioxide conversion to value-added products. Catalytic materials were synthesized ...
