Ahmad Nawaz

Indian Institute of Technology BHU | BHU · Department of Chemical Engineering and Technology

This study investigated the bioenergy potential of Chlorella pyrenoidosa (CP) for use as fuel and carbon material through chemical and thermal characterization. The thermo-kinetic characteristics of Chlorella pyrenoidosa were assessed using isoconversional, linear regression, and non-linear regression approaches. The physicochemical analysis reveal...

Energy demands are continually increasing as a result of population growth and industrialization, prompting the completion of new research to examine biochar-based catalytic pyrolysis of Spirulina plantensis (SP) microalgae for the generation of high-value chemicals in a microwave reactor. Biochar-based catalysts have excellent microwave absorption...

The rising worldwide need for energy, driven by industrial expansion, population increase, and transportation demands, poses a substantial issue. Microalgae are extremely promising raw materials for biofuel production, and pyrolysis is an efficient method of turning biomass into bioenergy. However, biofuels generated from microalgae pyrolysis frequ...

Multidimensional Nanomaterials for Supercapacitors: Next Generation Energy Storage explores the cutting-edge advancements in multidimensional nanomaterials for supercapacitor applications, addressing key techniques, challenges, and future prospects in the field. The book offers a comprehensive overview of the fundamentals of supercapacitors, includ...

In this research, a highly porous sodium bicarbonate activated carbon was produced by the fast pyrolysis of Chlorella pyrenoidosa biomass. The biochar without modification showed non-porous material characteristics based on the results of N 2 isotherm adsorption- desorption. The modification with sodium bicarbonate successfully increased the BET sp...

In this study, a wet proof multiple air cathode microbial fuel cell that generates bioelectricity by biodegradation of organic matter was fabricated. In this, platinum coated (0.5 mg/cm2) carbon cloth was used as air cathode and graphite rod was used as anode. The maximum power produced by MFC was 1.65042, 0.66951, 0.425061 mW on the 2nd day of ope...

This study examined the thermal degradation kinetics of potato stalk (PS) using a unique isoconversional technique. The kinetic analysis was assessed based on mathematical deconvolution approach with model-free method. The thermogravimetric analyzer (TGA) was used for the non-isothermal pyrolysis of PS at different heating rates. The Gaussian funct...

The thermocatalytic pyrolysis of Sesbania bispinosa (SB) biomass was performed in a cylindrical-shaped pyrolyzer to produce renewable fuel and chemicals. The important process parameters, such as temperature, heating rate, and N 2 flow rate, were optimized using the response surface methodology (RSM). Pyrolysis of the SB biomass was also performed...

Nowadays, wearing a 3-layered face mask (3LFM) to protect against coronavirus illness (COVID-19) has become commonplace, resulting in massive, hazardous solid waste. Since most of them are infected with viruses, a secure way of disposal is necessary to prevent further virus spread. Pyrolysis treatment has recently developed as an effective method f...

Energy needs are dynamic, and the increasing demand for energy prompted the completion of this study to explore the thermal degradation characteristics of Sesbania bispinosa (SB) biomass in order to assess its pyrolytic performance for biofuel generation. The physicochemical analysis revealed lower moisture (6.30%), higher volatile (79.35%), and lo...

The present study addressed the valorization of Lagerstroemia speciosa seed hull (LS) biomass for the production of renewable fuel and chemicals via pyrolysis. Important pyrolysis parameters such as heating rate (H.R), temperature, and inert gas (N2) flow rate were optimized using the joint approach of Response Surface Methodology (RSM) and Artific...

The present investigation aimed to understand the pyrolysis kinetic behavior of raw Arundo donax (Raw-AD), hydrothermally carbonized Arundo donax (HTC-AD), and torrefied Arundo donax (TOR-AD) in a thermogravimetric analyzer at dynamic heating rates. The physicochemical characterization analysis revealed that fuel properties have been enhanced after...

The adsorption behaviour of Cr (VI) onto raw Sterculia Alata nutshell (RSN) and phosphoric acid modified Sterculia Alata nutshell (PSN) from aqueous solution has been studied. Specific constraints such as initial pH (2-12), adsorbent dose (0.4-3.2 g/L) and temperature (24-32°C) have been investigated to examine the optimum process parameter for ads...

The aim of this work was to evaluate the pyrolysis of mustard straw (MS) in a thermogravimetric analyser and in a tubular reactor to recognize its bioenergy capability. The model free methods of Ozawa-Flynn-Wall (OFW), Kissinger-Akahira-Sunose (KAS) and Vyazovkin were employed for kinetic analysis and Coats-Redfern (CR) method for elucidating the r...

The current investigation demonstrated the physicochemical study, pyrolysis performance, and kinetic study of Lagerstroemia speciosa seed hull (LSH) biomass in a thermogravimetric analyzer under an inert ambiance. LSH sample was characterized by proximate study, elemental study, calorific value, biochemical analysis, and thermal stability study, wh...

The novelty of the present work was to prepare biochar by utilizing waste biomass (Lagerstroemia speciosa) seed hull (LSSH) through pyrolysis process followed by chemical modification with H3PO4. This chemically modified biochar was employed as an adsorbent for toxic Cr(VI) removal in batch adsorption process due to its high surface area (246.23 m2...