Results 121 to 130 of about 112,466 (353)

Alkali‐Metal Base Catalyzed Electrocyclization of Isoprene Derivatives

Chemistry – A European Journal, EarlyView.
Simple and abundant alkali‐metal base catalysis in combination with Lewis basic polyamines enables the electrocyclization of isoprene‐derived trienes to cycloheptadienes under neat conditions. Mechanistic insight supported by DFT guides a scalable route to seven‐membered carbocycles which, after reduction, give saturated cycloalkanes relevant as ...
Mikaël Le Roch, Krzysztof Piech, Aurélien Crochet, Andreu Tortajada   +3 more
wiley   +1 more source

The Application of Biochar Derived from Rice Husk Enhanced the Bioremediation of Petroleum-Contaminated Soil in Semi-Arid Areas

Agronomy
With the continuous expansion of petroleum exploitation, a large amount of petroleum hydrocarbons has leaked into the Earth’s soil, which seriously threatens ecological health.
Zhe Liu, Yang Zhang, Xiumin Li, Zenghui Sun, Ruiqing Zhang, Xuxiang Li, Yichun Du   +6 more
doaj   +1 more source

Eutrophication and sediment-water exchange of total petroleum hydrocarbons and heavy metals of Hashilan wetland, a national heritage in NW Iran. [PDF]

Environ Sci Pollut Res Int, 2022
Abbasi S, Sheikh Fakhradini S, Jaafarzadeh N, Ebrahimi P, Ashayeri SY.   +4 more
europepmc   +1 more source

Persulphate-based degradation of total petroleum hydrocarbons in contaminated water

Journal of Physics: Conference Series, 2019
Abstract The present study investigated the degradation of total petroleum hydrocarbons (TPH) in crude oil polluted water using sodium persulphate as a chemical oxidant. Laboratory-scale contaminations of water and degradation experiments using 0.1 M oxidant were carried out with contact time ranging from 1 to 15 days. The TPH extraction
O. P. Bo lade, B. M. Durodola, A. B. Williams, N. U. Benson   +3 more
openaire   +1 more source

Impact of Distillation Column Design on Potential for the Integration of Mechanical Vapor Recompression

Chemie Ingenieur Technik, EarlyView.
Mechanical vapor recompression integration in distillation is analyzed, focusing on feed preheating and column pressure drop. Binary methanol–water and benzene–toluene separations are studied to identify optimal designs, which are further assessed in a bioethanol vacuum distillation sequence regarding energetic, ecological, and economic performance ...
Thorben Hochhaus, Sebastian Siepmann, Marcus Grünewald, Julia Riese   +3 more
wiley   +1 more source

An exploratory study of the impact of commingled biochar on removal of total petroleum hydrocarbon (TPH) from crude oil polluted soil [PDF]

, 2023
Hogan Itam Daniel, Hogan Itam Ako, N. U. Udeh, Ugwoha Ejikeme   +3 more
openalex   +1 more source

Spatiotemporal variation of methane and other trace hydrocarbon concentrations in the valley of Mexico [PDF]

, 2002
Mexico City is the world's largest and most polluted urban center. We examine the distribution of methane and other hydrocarbons within the Valley of Mexico, using it as a model for the role developing megacities will play in the next century of ...
Blake, DR, Elliott, S, Rowland, FS, Smith, FA   +3 more
core  

Hydroprocessing of synthetic kerosene over a non‐sulphided Ni/Al2O3 catalyst: Impact of alcohols and ketones on alkene conversion

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Synthetic jet fuel containing non‐petroleum‐derived kerosene can be produced from synthetic kerosene obtained through processes that include a hydroprocessing step. The potential use of non‐sulphided (reduced) nickel supported on alumina (Ni/Al2O3) was evaluated as an alternative to sulphided catalysts to saturate alkenes in sulphur‐free ...
Garima Chauhan, Felix Link, Cibele Melo Halmenschlager, Arno de Klerk   +3 more
wiley   +1 more source

Durene conversion in a methanol‐to‐jet process: Exploring conversion at 150–350°C over different acid catalysts

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Acid catalyzed conversion of durene by isomerization, disproportionation, and transalkylation is of interest to the development of a methanol‐to‐jet process to reduce the amount of durene in the kerosene. It was of interest to determine whether durene conversion could be performed at a temperature lower than 350°C.
Aida G. Velasco Ortiz, Risha Raju, Arno de Klerk   +2 more
wiley   +1 more source

Production of middle distillates through olefin oligomerization using ZSM‐5 as a catalyst

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The global transportation sector relies heavily on gasoline (C5–C12) and diesel (C11–C24), which together account for approximately 60% of its energy needs. Driven by rapid industrialization and urbanization, diesel consumption is outpacing gasoline, with projections estimating global demand by 2035 at 27 million barrels per day for gasoline ...
Thembekile Hoyi, Masikana Milan Mdleleni, Ntalane Sello Seroka, Lindiwe Khotseng   +3 more
wiley   +1 more source