process optimization pyrolysis

Optimization study of pyrolysis process parameters. Based on lab scale pyrolysis experiments with BPW, the responses obtained in terms of biochar yield (%), carbon content (g) and pH of the biochar from 20 experimental conditions. RSM was used to develop second-order quadratic regression models that relate responses (biochar yield, …

The catalytic HDO of guaiacol, representing a low-quality biomass pyrolysis oil, is a complex thermochemical process that defies easy prediction or optimization using conventional methods. This intricate process hinges on a multitude of factors, including catalyst characteristics and operating conditions, all of which exert a significant ...

The complex composition of sludge made it difficult to investigate the whole process of pyrolysis reaction and its interactions. The apparent kinetic characteristics were used to explain the regulation of pyrolysis process to obtain a relatively simple model for guiding process design and process optimization [[126]], [127], [128]].

Weight loss in the first stage ranged from 200 to 400 °C and was identified to be pyrolysis of cellulose and hemicellulose, while the second stage above 400 °C was classified as the ...

Product distribution in pyrolysis process depends upon various factors like temperature, heating rate, packed bed height, residence time, reactor type, etc. Bio-oil is a complex liquid mixture of high water content and oxygenated organic compounds (Zhang et al., 2017a, Zhang et al., 2017b). Acidity and chemical instability of bio-oil makes it ...

To obtain the optimal amount of desired pyrolysis products, especially high-quality bio-oil, a great deal of effort has been conducted in both academia in the past few …

During the pyrolysis process, the three macromolecules of wheat straw will firstly depolymerize, C–O–C cleavage, ... Characteristics, kinetics, infrared analysis and process optimization of co-pyrolysis of waste tires and oily sludge. J. Environ. Manag., 316 (2022), Article 115278. View PDF View article View in Scopus Google Scholar

The optimization study showed that slow pyrolysis of treated wood at 300 °C for 30 min is a good compromise to reduce volume of CCB-treated wood and to capture up to 90% of copper, chromium and boron in the charcoal. The carbon percentage of charcoal obtained (72.06%) is suitable for hydroliquefaction in order to produce bio-oil.

In this study different process parameters during pyrolysis were investigated and optimized in order to provide the reclaimed carbon fibers with properties close to new fibers. The optimization was done by labscale pyrolysis experiments performed in a thermogravimetric analyzer (TGA), with variation of pyrolysis …

In the pyrolysis process, the synergistic effects of the two raw ingredients are thoroughly investigated. ... There was a certain synergy between OS and WT in the process of co-pyrolysis. (5) The optimization results showed that when the mixing ratio of WT was 58.7% at the heating rate of 10 °C/min, the smallest E and pyrolysis residue …

Optimization of process variables by RSM of scrap tire pyrolysis Response surface methodology (RSM), based on design expert software, was used to investigate the effects of operating parameters. Three factors were considered, such as running time, particle size and operating temperature along with the response of liquid product (wt. %) …

These models can assist in process optimization by providing insights into the effects of different variables on the pyrolysis process dynamics. Additionally, they can aid in scenario analysis by simulating the behavior of the pyrolysis system under different operating conditions, helping researchers understand the sensitivity of the process to ...

Pyrolysis in fixed bed reactor and optimization of process parameters using RSM. Abstract Thermal degradation kinetics of peanut shell (PS) biomass has been investigated at the heating rates of 10, 15, and 20 °C/min using thermo-gravimetric (TG) and differential thermo-gravimetric (DTG) analyses techniques in the temperature range of …

This process is designed to L 9 orthogonal array with provided 3 levels and 3 factors such as catalytic ratio, Temperature and production time are the input process parameters to quantity of fuel produced by pyrolysis process. Optimization of catalytic pyrolysis process parameters are confirmed by analysis of variance.

Co-pyrolysis of eggshell with orange peel enhanced the functionality of the composite as the functional peak showed in the FTIR (Fig. 1) ... (X 1 X 3) highly influenced the term adsorption capacity and played important role in the composite synthesis optimization process. The interaction ratio of orange peel to eggshell was best …

Biomass valorization through thermochemical conversion of lignocellulosic feedstocks is limited by our lack of detailed kinetic models. In addition to adding mechanistic understanding, more detailed models are needed to optimize industrial biomass pyrolysis processes for producing fuels and chemicals. To this end, a kinetic model for lignin …

Introduction. Flame spray pyrolysis (FSP), a process whereby nanomaterials are synthesized through the combustion of an atomized precursor solution, is an increasingly important materials manufacturing method with applications in the production of pigments, reinforcing agents, flowing aids, polishing aids, catalysts, and …

Gas (pyrolysis gas, C1–C5), a liquid phase (oil, C6–C16), solid compounds such as metals and char or (C20–C24) is produced during pyrolysis process from the organic rubber material in waste ...

The optimization was done by labscale pyrolysis experiments performed in a thermogravimetric analyzer (TGA), with variation of pyrolysis temperature, isothermal …

The optimization was done by labscale pyrolysis experiments performed in a thermogravimetric analyzer (TGA), with variation of pyrolysis temperature, isothermal dwell time and oven atmosphere ...

The optimization of the pyrolysis process is crucial for scale-up. Computer-assisted modeling and simulation techniques help to develop suitable configurations and experimental methods for better efficiencies.

Process optimization and technoeconomic environmental assessment of biofuel produced by solar powered microwave pyrolysis. Ahmed Elsayed Mahmoud …

The optimization conditions were as follows: the pyrolysis temperature was 450°C, the catalytic temperature was 500°C, and the OA amount was 0.1 ml/min and the reaction time was 30 min. The conversion ratio and product selectivity were calculated using Eqs.

One of the greatest challenges in the world is in the final disposal of plastics in order to reduce the effect of its polluting potential. Thus, the application of pyrolysis processes in generating products of interest such as fuel oils can be part of the solution. In addition to reducing greenhouse gas emissions to the atmosphere, oil can enter the …

The pyrolysis process was optimized using temperature, residence time, and feedstock particle size as independent variables when employing an RSM and BBD combination. ... Optimization of process parameters for bio-oil synthesis from pine needles (Pinus roxburghii) using response surface methodology. Chem Pap, 72 (3) (2018), pp. …

Pyrolysis. Abstract. Biomass valorization through thermochemical conversion of lignocellulosic feedstocks is limited by our lack of detailed kinetic models. In addition to …

Keywords: Fast pyrolysis process, Forestry wastes, Bio-oil, Screw extruder, Taguchi method Introduction The conversion of biomass into bio-oil involves a fast pyrolysis process. Fast pyrolysis is a high- temperature process in which biomass is rapidly heated in the temperature range of around 450~550 o C under the anoxia …

Preparing bio-oil from pyrolysis of waste cooking oil (WCO) has the potential to alleviate the energy crisis and turn waste into a useful resource. In this study, CaO made from waste eggshells (EGC), along with zeolite HZSM-5, were used as catalysts, and the process optimization and catalyst lifetime were investigated.

Abstract. The pyrolysis oil fraction is highly attractive for pyrolysis products. A simulated flowsheet model of a waste tire pyrolysis process is presented in this …

In the field of plastic pyrolysis, the optimization of process temperature, reaction time, and catalyst concentration is crucial. Vieira et al. (2020) used the Taguchi method to optimize the pyrolysis process temperature, including the heating rate, reaction temperature, residue time, and rice husk mass, in order to increase the biochar yield.

Recent research from Quesada et al. (2019) presented the optimization work of the pyrolysis process of a plastic waste to obtain a liquid fuel. Through central composition factorial design, an experimental design was carried out by varying the operation conditions comprising temperature, heating rate and residence time.