Imtiaz Ali

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Verified

Imtiaz verified their affiliation via an institutional email.

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• PhD
• Professor (Associate) at Prince Mohammad bin Fahd University

This study aimed to emphasize the potential of pyrolysis of oil palm empty fruit bunch (PEFB) biomass as a sustainable energy source and underscore the significance of considering multiple factors in implementing renewable energy. The kinetic analysis of PEFB pyrolysis was carried out using the Friedman, Kissinger–Akahira–Sunose (KAS), Ozawa–Flynn–...

The rising population, global rise in industrial activity, and improving living standards have led to a rise in energy demand along with the production of substantial amounts of wastewater. To meet this increasing global energy demand, non-food energy crops (lignocellulosic biomass) and land free cultivation on the surface of wastewater are the lea...

Plastic waste has become a pressing global environmental issue as production and disposal rates surge worldwide. Most plastics are non-biodegradable and accumulate in landfills and the natural environment, posing severe ecological risks. Meanwhile, energy demand continues to escalate rapidly due to population and economic growth. Dependence on foss...

In this study, menthol was glycosylated with starch in the presence of α-amylase to produce menthyl maltoside (MenM) as the primary product. Optimization of the experimental parameters, including the menthol-starch ratio, enzyme concentration, temperature, and time, was performed using response surface methodology (RSM). The RSM-generated model dis...

The thermal degradation kinetics of poly(2-ethyl-2-oxazoline) (PEOX) prepared under different pH conditions were studied. Kinetic assessment was conducted by analyzing the thermal degradation of PEOX. The kinetic parameters were estimated using model-free methods; including Friedman, OFW, KAS and Starink methods and model-fitting method; Combined k...

Sludge from the tannery is produced in enormous amount. This work has investigated the thermal analysis behaviour of the tannery sludge by use of the thermogravimetric analysis (TGA). The TGA experiments is carried out in both air and nitrogen environment at the varied heating rates of 5, 10, 20 and 40°C/min from the temperature range of 30-900°C....

Retracted papers are scientific or scholarly works officially withdrawn by the publisher or journal after their initial publication. The primary goal of retractions is to rectify the literature and alert readers about articles containing substantially flawed or erroneous content or data, or due to ethical concerns, rendering reported findings and c...

Mass scale production of lignocellulosic biomass to produce clean energy needs huge amounts of freshwater and land which conflicts with their need for food and agricultural crops. Here, a land-free cultivation method was employed to produce Leptochloa fusca biomass using industrial and urban wastewater, which was then converted into bioenergy throu...

Energy demand is souring, and fossil fuel reserves are dwindling, making heavy oil resources more attractive. In this study, thermogravimetric and Py-GC/MS analyses were conducted on Iranian crude oil samples to compare high and low API (American Petroleum Institute) crude oils. A kinetic study based on mass loss of crude oil was performed using th...

Hydrochars are valuable resources obtained from hydrothermal carbonization (HTC) of biomass. To optimize the reaction conditions of HTC, extensive experimentation is required, which is both costly and time consuming. In order to reduce the time and cost, this study develops new predictive models for higher heating values (HHV) of hydrochar based on...

This study investigated the pyrolysis of hemp residue using kinetic analysis. The thermal degradation of hemp residue occurred in three temperature ranges, and the activation energy (Ea) varied between 147.5 kJ/mol and 299.2 kJ/mol depending on the model-free method used. Combined kinetics, statistical approach, was used to calculate the kinetic tr...

The Coats-Redfern method was used to identify the catalytic and non-catalytic pyrolysis of rice husk biomass kinetics by using thermogravimetric analysis. MTES-beta-zeolite and beta-zeolite were synthesized by dry gel conversion method. Both synthesized zeolites and commercial beta-zeolite were mixed with ground rice husk in a 1:0.03 ratio by mass....

The conversion of biomass through thermochemical processes has emerged as a promising approach to meet the demand for alternative renewable fuels. However, these processes are complex, labor-intensive, and time-consuming. To optimize the performance and productivity of these processes, modeling strategies have been developed, with steady-state mode...

The quest for energy and environmental sustainability necessitates an increasing interest in the photocatalytic conversion of wastewater to biohydrogen. However, the complexity of the photocatalytic conversion and the low productivity of the biohydrogen produced has become a major concern in the scale-up of the process. This study employs a data-dr...

In the leather industry, tannery sludge is produced in large volume. This study investigated the thermal degradation behavior of tannery sludge using thermogravimetric analysis (TGA). The experiments were carried out in an inert atmosphere using nitrogen gas at varied heating rates of 5, 10, 20, and 40 °C/min in the temperature range of 30-900 °C....

Saccharum bengalense grows on non-arable lands throughout the world. Its oven-dried biomass showed 18.05±0.37 (MJ kg-1) of High Heating Value (HHV), 76.47±0.58% of volatile matter, and very low content of sulfur (0.46±0.04%). Here, its oven-dried biomass was pyrolyzed at four heating rates (β: 10, 20, 40, 80 ℃min-1) in a thermogravimetric analyzer....

Since industrial development and globalization of the world, fossil fuels remain a major source of energy for almost all sectors of life. Fossil fuels, without doubt, play a vital role in the development of today's world. However, there are increasing reservations about the consumption of fossil fuels due to their detrimental impact on our ecosyste...

Textile industries release effluent that contains the vast majority of heavy metals in which Cr (VI) is a toxic carcinogenic element that causes an environmental problem. The aim of the work is to synthesize algae-derived biochar derived from algae using slow pyrolysis at an operating temperature of 500 °C, a heating rate of 10 °C/min and a residen...

Viscosities and densities of an ethanol with fuel oxygenate at temperatures of the binary system of methyl tert butyl ether of (T=303.15 K to 318.15 K) entire composition range and 1atm. The experimental density and viscosity results were used to calculate the excess molar volume, VE and viscosity deviation, Δη of the system. With an aim, the therm...

Biomass pyrolysis is one of the cleaner ways to produce bioenergy focusing on bio-oil. The high oxygen content of oxygen in bio-oil limits its application in transportation applications. The deoxygenation of bio-oil using various catalyst systems is required to upgrade the bio-oil. Herein, we presented the scientometric analysis of microporous zeol...

Advancement in the anaerobic digestion of sewage sludge for biogas production is constantly required for effective commercialization. There is great interest in exploring the scientometric and technical assessment in biogas production using sewage sludge from various sources in the anaerobic digestion process. Therefore, this work provides a biblio...

The co-torrefaction of several biomasses may be a viable solution in the study area, as it produces biofuels and addresses waste-treatment concerns. This review evaluates biomass through ultimate, proximate, and FTIR analyses, and the mechanism of the co-torrefaction process is observed for product quality with a synergistic effect. Furthermore, th...

The disposal and the management of sewage sludge from tanneries is a challenging issue for the leather industries because of their adverse effect on the environment. In this study the detailed characterization and assessment using kinetic and thermodynamic parameters of the tannery sewage sludge in combustion environment was employed. Isoconversion...

Lignocellulosic biomass has attracted an extraordinary amount of attention because of its high availability and low price as one of the sustainable and renewable resources for producing valuable products, such as biochar. This study reviews latest research on biochar production through the pyrolysis process and its applications. Technologies based...

Chinese liquor and bamboo are the leading industrial enterprises in China which produce huge amounts of residual biomass. This study was aimed at assessing the potential of both residual biomasses to produce clean energy and biochemicals via pyrolysis and co-pyrolysis. Both biomasses were pyrolyzed either alone (1:0 and 0:1) or co-pyrolyzed in thre...

The study presents the production of biolubricant from castor oil using Fe3O4 nanoparticles and ethylene glycol in a transesterification process, as an additive. Operational parameters such as FAME/alcohol, catalyst loading, and temperature were optimized. The reaction was complete after two hours at 160 °C, giving a yield of 94 %. To enhance the p...

Lubricants operate as antifriction media, preserving machine reliability, facilitating smooth operation, and reducing the likelihood of frequent breakdowns. The petroleum-based reserves are decreasing globally, leading to price increases and raising concerns about environmental degradation. The researchers are concentrating their efforts on develop...

This study investigates CO2 biofixation and pyrolytic kinetics of microalga G. pectorale using model-fitting and model-free methods. Microalga was grown in two different media. The highest rate of CO2 fixation (0.130 g/L/day) was observed at a CO2 concentration of 2%. The pyrokinetics of the biomass was performed by a thermogravimetric analyzer (TG...

Textile industry utilize a massive amount of dyes for coloring. The dye-containing effluent is released into wastewater along with heavy metals that are part of dye structure. The treatment of textile industry wastewater using conventional techniques (coagulation, membrane technique, electrolysis ion exchange, etc.) is uneconomical and less efficie...

The discharge of textile wastewater into aquatic streams is considered a major challenge due to its effect on the water ecosystem. Direct blue 78 (DB78) dye has a complex structure. Therefore, it is difficult to separate it from industrial wastewater. In this study, carbon obtained from the pyrolysis of mixed palm seeds under different temperatures...

The integration of biomass into existing thermochemical conversion processes for bioenergy production is expected to play a key role in the energy transition to reduce the reliance on depleting fossil fuels and mitigate fossil carbon emissions. In this study coal-biomass blends containing hemp and sawdust were prepared with various blending ratios...

Pyrolysis has been demonstrated to be a highly effective thermochemical process for converting complex biomaterials into biochar and syngas rich in hydrogen. The pyrolysis of mixed date palm seeds from Saudi Arabia was conducted using a fixed-bed pyrolyzer that was custom made for the purpose. The influence of the pyrolysis temperature (200–1000 °C...

Pretreatment is an essential pathway to improve agro-based feedstock (sugarcane bagasse) for fast pyrolysis. The undesirable changes in the chemical composition and large amounts of alkali metals are obstacles in using common pretreatment process of sugarcane bagasse. To address this challenge, microwave-assisted hot water treatment (MW-HT) was int...

Oily sludge is a hazardous waste stream of the oil refineries that requires an effective process and an environment-friendly route to convert and recover valuable products. In this study, the pyrolytic conversion of the wet waste oil sludge was implemented in an autoclave pyrolyser and a thermogravimetric analyser (TGA) at 5 ºC/min, 20 ºC/min, and...

Furandicarboxylic acid (FDCA) is recognized as a valuable product of hydroxymethylfurfural (HMF) derived from cellulosic materials that could find future bioplastic application if a feasible separation process is developed. To find a commercially available solvent that can selectivity separate FDCA and HMF as well as the downstream process was supp...

Development of date seeds in-situ pyrolysis utilizing layered double hydroxide (LDH)-based catalysts is still in its infancy. This study investigates the thermokinetics of date seeds (DS) loaded with LDH by thermogravimetric analysis. Three different LDHs, namely Mg-Fe (MF), Ni-Fe (NF), and Co-Fe (CF), were synthesized by the co-precipitation metho...

The current trends of solid waste generation and its landfilling/dumping present a global challenge to cleaner environment and sustainable development. The aim of the study is to present the research dynamics of solid waste landfilling (SWL) during the past 20 years based on a bibliometric analysis. This is the first bibliometric analysis which was...

In this work, air gasification of sewage sludge was conducted in a lab-scale bubbling fluidized bed gasifier. Further, the gasification process was modeled using artificial neural networks for the product gas composition with varying temperatures and equivalence ratios. Neural network-based prediction will help to predict the hydrogen production fr...

This study investigates the efficacy of a prepared Ni/θ-Al2O3 catalyst during the pyrolytic conversion of Parachlorella kessleri HY-6 and compares the results with non-catalytic conversion. The catalyst was characterized by techniques such as Brunauer–Emmett–Teller (BET) for surface area, acidity, and X-ray powder diffraction (XRD). Isoconversional...

As part of natural products or biologically active compounds, the synthesis of nitrogen-containing heterocycles is becoming incredibly valuable. Palladium is a transition metal that is widely utilized as a catalyst to facilitate carbon-carbon and carbon-heteroatom coupling; it is used in the synthesis of various heterocycles. This review includes t...

Hydrogen (H2) is considered as a zero-emission fuel when produced through biomass pyrolysis. The objective of this review article is to analyze the potential of the pyrolysis process in terms of H2 yield, the maturity of technology, current challenges, future perspective, and its commercialization potential. This review article has three folds. Fir...

Coffee is a globally consumed beverage that produces a substantial amount of valuable organic waste known as spent coffee grounds (SCG). Although SCG is a non-edible biomass, research initiatives focused on valorizing/utilizing its organic content, protecting the environment, and reducing the high oxygen demand required for its natural degradation....

Pyrolysis of agricultural biomass is a promising technique for producing renewable energy and effectively managing solid waste. In this study, groundnut shell (GNS) was processed at 500 °C in an inert gas atmosphere with a gas flow rate and a heating rate of 10 mL/min and 10 °C/min, respectively, in a custom-designed fluidized bed pyrolytic-reactor...

Bioenergy potential of microalage Scednedesmus quadricuda through pyrolysis was investigated using kinetic and thermodynamic analyses. From model-free isoconversional methods, the estimated average activation energies were 152.37 (±20.93), 174.98 (±22.38), and 153.00 (±21.23) kJ/mol, using Friedman, OFW and advance Vyazovkin methods, respectively....

Journal of Business Research (JBR) is a leading peer-reviewed scientific outlet that publishes theories highly relevant to practical business applications. Our study aims to explicate the knowledge creation dynamics (structure and networks) of JBR special issues (SIs) and regular issues (RIs) between 1973 and 2020. Applying bibliometrics, we examin...

Oily sludge has the potential to utilize in pyrolysis process effectively because of higher product recovery and lower harmful emissions. Due to the complex nature of reactions, it is necessary to evaluate the thermo-kinetic behaviour of the process to make it commercially feasible. This study includes thermal degradation behaviour, the kinetic and...

Pyrolytic conversion of Tetraena coccinea, a halophilic plant widely found along the coastal belt of the Saudi Arabian Red Sea, was investigated for its bio-energy potential. The kinetic triplets of pyrolysis were estimated from model-free and model-fitting methods using the conversion data obtained under non-isothermal conditions. Activation energ...

Agro-industrial residue is widely considered as a rich source of energy, with varying characteristics depending on the geographical region or origin from where it is collected. Rice husk, bagasse, corncob, wheat straw and wood chips do not find many applications in Pakistan. As they are available in large quantities and at lower cost, therefore it...

Lignocellulosic biomass is a vital resource for providing clean future energy with a sustainable environment. Besides lignocellulosic residues, nonlignocellulosic residues such as sewage sludge from industrial and municipal wastes are gained much attention due to its large quantities and ability to produce cheap and clean energy to potentially repl...

Psychology & Marketing (P&M), an internationally reputed journal, publishes original, peer‐reviewed, empirical research on the application of psychological theories and techniques to marketing. The aim of this essay is to provide a bibliometric overview of the leading trends in the special issues of P&M over its history (1984–2020). Using bibliomet...

The thermal decomposition behaviours of palm kernel shells (PKS) under non-isothermal conditions were investigated using the thermogravimetric analyser. A comparison of model-free and model-fitting methods for PKS decomposition was performed. Differential and integral methods used showed an increase in apparent activation energy with the conversion...

This study investigates the thermal decomposition, thermodynamic and kinetic behavior of rice-husk (R), sewage sludge (S) and their blends during co-pyrolysis using thermogravimetric analysis at a constant heating rate of 20 °C/min. Coats-Redfern integral method is applied to mass loss data by employing seventeen models of five major reaction mecha...

Pyrolysis of Turbinaria ornata was realised in a thermogravimetric analyzer. The process was crudely classified into primary and secondary reaction zones. In the primary reaction zone, the thermal decompositions of the low-thermal stable components produced volatiles and biochar. The solid products obtained from the primary decomposition reactions...

This study investigates the co-pyrolysis of sugarcane bagasse(B), sewage sludge(S) and their blends of different proportions (100%B, 70%B30%S, 50%B50%S, 30%B70%S, 100%S) through TGA-DTA at 20°C/min. The purpose of this study to assess the synergistic effect of addition of sugarcane bagasse into and sewage sludge and investigate the co-pyrolysis pro...

This paper discusses some aspects of the strategy used in the paper “Evaluating the bioenergy potential of Chinese Liquor-industry waste through pyrolysis, thermogravimetric, kinetics and evolved gas analyses” by Ye et al. [Energy Convers. Manage. 163 (2018) 13–21]. Normally, activation energy is obtained from a model-free method which is then used...

Reference data used in the article "Misuse of pre-exponential factor in the kinetic and thermodynamic studies using thermogravimetric analysis and its implications"

This paper describes the misuse of Arrhenius pre-exponential factor in the kinetic and thermodynamic studies using thermogravimetry. Standard test method (ASTM E698) has been used recently by many researchers to calculate the pre-exponential factor. ASTM E698 is reserved for differential scanning calorimetry (DSC) and impose many restrictions which...

This paper describes the misuse of Arrhenius pre-exponential factor in the kinetic and thermodynamic studies using thermogravimetry. Standard test method (ASTM E698) has been used recently by many researchers to calculate the pre-exponential factor. ASTM E698 is reserved for differential scanning calorimetry (DSC) and impose many restrictions which...

Incorporation of recycled fibres in high value paper products can reduce cost and environmental loads. Papermaking potential of cellulosic fibres decreases with recycling. The phenomenon of fibre hornification during pressing and drying is normally held responsible for the loss in strength. To study the impacts of recycling on pulp, fibre and paper...

In this work, PVDF homopolymer was blended with PVDF-co-HFP copolymer and studied in terms of morphology, porosity, pore size, hydrophobicity, permeability, and mechanical properties. Different solvents, namely N-Methyl-2 pyrrolidone (NMP), Tetrahydrofuran (THF), and Dimethylformamide (DMF) solvents, were used to fabricate blended PVDF flat sheet m...

The kinetics of Botryococcus braunii pyrolysis was studied using commonly used model-free and model-fitting methods. Differential and integral versions of iso-conversional model-free methods provide effective apparent activation energy as a function of conversion. Reaction-order and Šesták and Berggren (SB) models were considered for the estimation...

In this study, graphite-enriched vinyl ester resin (GVER) composites were prepared with 1, 3 and 5% of graphite micro-platelets (GMPs) to investigate thermo-mechanical and thermo-kinetic properties of composites. The thermal degradation behavior of GVER composites has been studied by thermo-gravimetric analysis under non-isothermal conditions in in...

The complex and non-linear relationship between kinetic parameters and main biomass components is one of the major problem for model development. The application of non-linear modelling would be interesting to predict the behavior of such a complicated model. The machine learning approaches are widely used in many applications for modelling the non...

Model-free and model-fitting methods were compared for pyrolytic conversion of the coconut shell waste. The apparent activation energy, estimated from differential and integral iso-conversional methods, increased with the progression of pyrolytic conversion. The reaction model,f(α)=(1-α)^4·[-ln(1-α)]^0.53 , indicate that order-based nucleation and...

Biomass pyrolysis is an efficient and economical conversion process. The kinetics of biomass conversion is still not fully understood mainly because this complex material is composed of numerous compounds with very different reactivities. In this work an inverse model is used to determine the nonparametric probability density function p(Ea) of acti...

Biomass pyrolysis is an efficient and economical conversion process. The kinetics of biomass conversion is still not fully understood mainly because this complex material is composed of numerous compounds with very different reactivities. In this work an inverse model is used to determine the nonparametric probability density function p(Ea) of acti...

Sargassum spp. of Red Sea origin was investigated using thermogravimetric analysis (TGA) to study the kinetics of pyrolysis. Dried Sargassum spp. samples were non-isothermally heated at 10, 15, 20 and 25 °C·min− 1 from 40 to 900 °C in an inert atmosphere. The differential thermogravimetric analysis (DTG) showed three distinct zones of vaporization...

This paper assesses the feasibility of further desalination of SWRO brine by direct contact membrane distillation (DCMD) process using novel blended polyvinylidene fluoride (PVDF) membranes. Blends of PVDF homopolymer (HP; Solef® 6020, Solvay), as a core polymer, with PVDF copolymer (CP; Solef® 21510, Solvay) and N-methyl-2-pyrrolidone (NMP) as a s...

Paper is constituted of natural fibers and represents a perfect example of structural multifunctional materials. Indeed, its fibrous structure is engineered to fit the different end use properties: both optical and mechanical properties are usually required. These requirements may lead to contradictory needs in terms of structure. The influence of...

This study was focused on the improvement of mechanical strength properties of wheat straw‐based paper through modification of wet‐end cationic starch with borax. Borax has been used extensively in many industrial applications for its unique physical and chemical properties. We investigated the strengthening effect of borax‐modified starch (BMS) as...

Incorporation of recycled fibres in high value paper products can reduce costand environmental loads. Papermaking potential of cellulosic fibres decreaseswith recycling. The phenomenon of fibre hornification during pressing anddrying is normally held responsible for the loss in strength. To study the impactsof recycling on pulp, fibre and paper pro...

Collapsibility, conformability and flexibility are the important characteristics of chemical pulp fibres. Higher bonding potential of the pulp is due to these fibre properties. The irreversible loss of wet fibre flexibility and bonding ability of lignocellulosic materials caused by the removal of water during pressing and drying is generally attrib...