Effect of hot char and steam on products in waste tire pressurized pyrolysis process

2021 ◽  
Vol 237 ◽  
pp. 114105
Author(s):  
Fengchao Wang ◽  
Ningbo Gao ◽  
Cui Quan
Keyword(s):  
Pyrolysis Process ◽  
Waste Tire

Thermal Characteristics of the Waste Tire Pyrolysis Process

Vestnik MEI ◽  
2021 ◽  
pp. 37-48
Author(s):  
Stanislav K. Popov ◽  
◽  
Vyacheslav D. Vaniushkin ◽  
Ernest A. Serilkov ◽  
◽  
...  
Keyword(s):  
Heat Balance ◽  
Thermal Characteristics ◽  
Coke Residue ◽  
Engineering Practice ◽  
Pyrolysis Oil ◽  
Pyrolysis Process ◽  
Resource Saving ◽  
Pyrolysis Gas ◽  
Waste Tire ◽  
Balance Structure

A significant annual growth in the number of spent car tires creates a serious environmental problem and calls for the need to continue searching for efficient resource-saving methods of their recycling. There is a growing number of efforts aimed at studying waste tire thermochemical conversion processes, including their pyrolysis to obtain valuable products, including a solid fraction (coke residue), liquid hydrocarbon fraction (pyrolysis oil), and noncondensable gaseous fraction (pyrolysis gas). Commercial and pilot pyrolysis plants and reactors are reviewed. A rotating drum reactor, shaft and screw reactors are the most promising solutions for implementing a continuous process. The development of new resource-saving solutions for the pyrolysis of waste tire requires knowledge of the thermal characteristics of this process, including information on the material and heat flows in the pyrolysis reactor. The composition and thermal properties of waste tire, as well as specific outputs, composition and fuel properties of pyrolysis product material flows, including pyrolysis gas, pyrolysis oil and coke residue, are presented. Information on the pyrolysis plant or reactor heat balance structure is either absent or incomplete. Based on the data available in the literature, the heat balance of a commercial pyrolysis plant equipped with screw reactors characterized by a specific thermal destruction heat of 0.640 MJ/(kg of tires) is drawn up and studied. The numerical analysis results correlate with the data published for the commercial-grade plant. Information on the pyrolysis chamber heat balance structure is correct enough for use in engineering practice. It has been found that the specific heat consumption for the pyrolysis process is 2.269 MJ/(kg of tires). This value can be used in numerically analyzing pyrolysis plants equipped with other designs of pyrolysis reactors.

Demonstration of the waste tire pyrolysis process on pilot scale in a continuous auger reactor

2013 ◽  
Vol 261 ◽  
pp. 637-645 ◽  
Author(s):  
Juan Daniel Martínez ◽  
Ramón Murillo ◽  
Tomás García ◽  
Alberto Veses
Keyword(s):  
Pilot Scale ◽  
Pyrolysis Process ◽  
Waste Tire ◽  
Auger Reactor

A Study on the Characteristics of Cooling Heat Transfer for Carbon Black from Waste Tire Pyrolysis Process

2019 ◽  
Vol 36 (07) ◽  
pp. 601-607
Author(s):  
Hoon Chae Park ◽  
Myung Kyu Choi ◽  
Hang Seok Choi
Keyword(s):  
Heat Transfer ◽  
Carbon Black ◽  
Pyrolysis Process ◽  
Waste Tire

Predictive Kinetics Model for an Industrial Waste Tire Pyrolysis Process

2013 ◽  
Vol 27 (2) ◽  
pp. 1040-1049 ◽  
Author(s):  
Jean-Remi Lanteigne ◽  
Jean-Philippe Laviolette ◽  
Gilles Tremblay ◽  
Jamal Chaouki
Keyword(s):  
Industrial Waste ◽  
Kinetics Model ◽  
Pyrolysis Process ◽  
Waste Tire

Valorisation of by-Products/Waste of Agro-Food Industry by the Pyrolysis Process

2016 ◽  
Vol 3 (1) ◽  
pp. 1-11 ◽  
Author(s):  
D. Fino ◽  
◽  
Y.S. Camacho ◽  
S Bensaid ◽  
B. Ruggeri ◽  
...  
Keyword(s):  
Food Industry ◽  
Pyrolysis Process ◽  
By Products

Theoretical Computations on the Pyrolysis of Alkyl (dithio)acetates

2020 ◽  
Vol 17 (3) ◽  
pp. 224-233
Author(s):  
Xun Zhu ◽  
Chen Jian ◽  
Xiuqin Zhou ◽  
Abdullah M. Asiri ◽  
Khalid A. Alamry ◽  
...  
Keyword(s):  
Transition States ◽  
Membered Ring ◽  
Pyrolysis Process ◽  
Alkyl Esters ◽  
Charge Distributions ◽  
Theoretical Analyses

The pyrolysis of methyl alkyl esters I to III and dithioesters IV to VI were theoretically calculated. All possible pyrolysis paths were considered. Both esters and dithioesters presented three potential paths via six-, four- and five-membered ring transition states, respectively. The calculation processes were calculated using MP2/6-31G(d) set. In-depth theoretical analyses were also presented, including NBO related analyses, synchronicities, and charge distributions, to reveal the detailed pyrolysis process.

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