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

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 …

Biomass pyrolysis allows conversion of biomass into valuable bio-oil, gas, and char products and at the same time through optimization of reaction conditions, allows the realization of comprehensive processing of biomass. As the component structure of natural biomass is very complicated, exploring the pyrolysis behavior of individual …

The available studies on microwave pyrolysis of oily sludge have not dealt with the optimization of process parameters like the selection of suitable susceptor, susceptor: sludge ratio, and microwave power on recovery. The qualities of products like oil, gas, and char yield have not been quantified.

The specific yields from the pyrolysis process depend on operating conditions such as pyrolysis temperature, pressure, feed flow rate, and inert gas flow rate to maximize outputs. Simulation results showed that all the oil palm biomass wastes displayed a high bio-syngas yield (50.17-52.68%), a moderate bio-char yield (31.77 …

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.

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.

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 …

First, pyrolysis mechanisms of real biomass and its major components, the reactor-scale simulation of biomass pyrolysis, and applications of pyrolysis products are discussed. Then, according to the requirements imposed to improve the physicochemical properties of respective pyrolysis products, relevant optimization and regulation …

Process optimization to optimize thermal power generation and CO 2 production has been done by using the pattern search method. The final optimization results have been presented in Table S1 among which the optimum one with suitable CO 2 and thermal power production has been selected. As per optimization result, the …

This review focused on the theoretical research progress of sustainable utilization of biomass resources from three aspects: basic thermochemical data estimation, process simulation and system optimization of pyrolysis and gasification. And the application of artificial intelligence as a tool in the field of above three aspects was also …

The volatiles that evolved during the pyrolysis process were forced to pass through a condensing system utilizing water as a coolant. When the vapours go through the cooling lines the condensable compounds condense from the gaseous vapour forming bio-oil which is collected in a collection flask. ... chemical equilibrium and process …

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 …

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]].

Pyrolysis is one of the thermochemical methods used to produce value-added products from biomass. Thermogravimetric analysis (TGA) is frequently used to examine the energy potential and thermal behavior of biomass, coal, and their blends. ... [44, 45] conducted research on process optimization and bio-oil quality by catalytic fast …

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

It will overview the recent advances regarding plastic pyrolysis process and reactor design, introduce various recovery pathways based on the pyrolysis process, summarize process optimization and catalyst development, discuss the present challenges for plastic pyrolysis, highlight the importance and significance of creating a …

Pyrolysis modeling has many applications, including process design and optimization, feedstock selection, and evaluating the environmental and economic impacts of pyrolysis processes. Experimental investigations are crucial for the accurate design and subsequent optimization of pyrolyzers.

Abstract: Biochars are solid products from the pyrolysis of crop residues, and their physicochemical properties vary with the pyrolysis conditions and crop residue types. It is of great significance to optimize the pyrolysis process and to regulate the physicochemical properties for high-value utilization of biochars. In this study, rice straw, wheat straw, …

Optimization of gaseous products produced during pyrolysis can be achieved through high reaction temperatures (up to 1000 °C), small particle sizes biomass such as wood …

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.

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 …

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 ...

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. %) …

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 results showed that the sludge pyrolysis process targeting the production of gas-phase products had the highest energy ratio, and that long pyrolysis residence time and low heating rate both resulted in higher energy losses. ... Reasonable optimization of process parameter settings can reduce system energy consumption …

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 …

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.

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.

One interesting application is the use of AI to reduce the solution time of reaction network models for pyrolysis and enable faster process optimization (Hough et al., 2016 (Hough et al.,, 2017 ...