Hydrodealkylation definition

Hydrodealkylation means dealkylation of toluene and xylenes into benzene over a fixed catalyst bed in the presence of hydrogen at low to moderate pressure.

Examples of Hydrodealkylation in a sentence

  • In 2005, the French production capacity was estimated at one Mt/year on seven industrial sites, i.e. mean of 143,000 t/year per site (www.ineris.fr/rsde/fiches/fiche benzene 2005.pdf).The Hydrodealkylation (Douglas, 1988) process for producing benzene, a classical benchmark in chemical process synthesis stud- ies, is used in this paper (HDA process).

  • In 2005, the French production capacity was estimated at one Mt/year on seven industrial sites, i.e. mean of 143,000 t/year per site (www.ineris.fr/rsde/fiches/fiche benzene 2005.pdf).The Hydrodealkylation (Douglas, 1988) process for producing benzene, a classical benchmark in chemical process synthesis stud ies, is used in this paper (HDA process).

  • Xylene Rerun Column XYLC n.c. n.c. Heavy Aromatics Column HVYARO n.c. n.c. Hydrodealkylation HDA Fresh feed 2.45 Dealkylation of toluene and xylenes into benzene over a fixed catalyst bed and in the presence of hydrogen at low to moderate pressure.

  • Hydrodealkylation process The hydrodealkylation (HDA) is a commercially viable process used for the production of benzene from toluene and higher molecular weight aromatics.

  • Braun and Clark (2012) define thematic analysis as a method for carefully identifying, organizing, and providing insight into, patterns of meaning or themes across a dataset.

  • The Hydrodealkylation (HDA) [2] of toluene is a mid- size flowsheet (14 variables and seven equations).

  • We illustrate aspects of the Design COGent in the following two examples which give ex- tracts from a Case Study on the Hydrodealkylation of Toluene to produce Benzene (see for example, (Douglas 1988)): Benzene is derived from Toluene using Hydrogen as a dealkylating agent; a secondary reversible reaction leads to a conversion of some of the Benzene into Diphenyl.Example 1: Recycle Structure Identifying the potential recycle structures forms part of the problem clarification.

  • ΣFi |The reaction network considered in this study is introduced by various reactions such as Dehydrogenation, Ring expansion, Isomerization, Hydrocracking, Naphthene cracking, Hydrodealkylation, for C6 to C9 hydrocarbons which were totally 47 reactions.

Related to Hydrodealkylation

  • Gasification means the substoichiometric oxidation or steam reformation of a substance to produce a gaseous mixture containing two or more of the following: (i) oxides of carbon; (ii) methane; and (iii) hydrogen;

  • Nitrogen oxides means nitric oxide and nitrogen dioxide, expressed as nitrogen dioxide (NO2);

  • Biomass means the biodegradable fraction of products, waste and residues from biological origin from agriculture (including vegetal and animal substances), forestry and related industries including fisheries and aquaculture, as well as the biodegradable fraction of industrial and municipal waste;

  • Tetrahydrocannabinol means the natural or synthetic equivalents of the substances contained in the plant, or in the resinous extractives of, Cannabis sativa, or any synthetic substances, compounds, salts, or derivatives of the plant or chemicals and their isomers with similar chemical structure and pharmacological activity.

  • Geothermal fluid means water in any form at temperatures greater than 120

  • Diatomaceous earth filtration means a process resulting in substantial particulate removal in which a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.

  • Cyanoacrylate adhesive means any adhesive with a cyanoacrylate content of at least 95% by weight.

  • Total tetrahydrocannabinol means the sum of the percentage by weight of tetrahydrocannabinolic acid multiplied by eight hundred seventy-seven thousandths plus the percentage of weight of tetrahydrocannabinol.

  • Biomethane means biogas that meets pipeline quality natural gas standards.

  • Fabrication means making up data or results and recording or reporting them.

  • Hydrozone means a portion of the landscaped area having plants with similar water needs. A hydrozone may be irrigated or non-irrigated.

  • Oxides of nitrogen means the sum of the volume mixing ratio (ppbv) of nitrogen monoxide (nitric oxide) and nitrogen dioxide expressed in units of mass concentration of nitrogen dioxide (µg/m3);

  • Anaerobic digestion ’ means a controlled process involving microbial decomposition of organic matter in the absence of oxygen ;

  • Sensor means any measurement device that is not part of the vehicle itself but installed to determine parameters other than the concentration of gaseous and particle pollutants and the exhaust mass flow.

  • JetBrains or “We” means JetBrains s.r.o., having its principal place of business at Xx Xxxxxxxxx XX 0000/00, Xxxxxx, 00000, Xxxxx Xxxxxxxx, registered in the Commercial Register maintained by the Xxxxxxxxx Xxxxx xx Xxxxxx, Xxxxxxx X, Xxxx 00000, ID. No.: 265 02 275.

  • Gasohol means a blended fuel composed of gasoline and fuel grade ethanol.

  • Membrane filtration means a pressure or vacuum driven separation process in which particulate matter larger than 1 micrometer is rejected by an engineered barrier, primarily through a size-exclusion mechanism, and which has a measurable removal efficiency of a target organism that can be verified through the application of a direct integrity test. This definition includes the common membrane technologies of microfiltration, ultrafiltration, nanofiltration, and reverse osmosis.

  • Coagulation means a process using coagulant chemicals and mixing by which colloidal and suspended materials are destabilized and agglomerated into flocs.

  • business vertical means a distinguishable component of an enterprise that is engaged in the supply of individual goods or services or a group of related goods or services which is subject to risks and returns that are different from those of the other business verticals.

  • Transboundary movement means any movement of hazardous wastes or other wastes from an area under the national jurisdiction of one State to or through an area under the national jurisdiction of another State or to or through an area not under the national jurisdiction of any State, provided at least two States are involved in the movement;

  • Fluoroscopic imaging assembly means a subsystem in which X-ray photons produce a visual image. It includes the image receptor(s) such as the image intensifier and spot-film device, electrical interlocks, if any, and structural material providing linkage between the image receptor and diagnostic source assembly.

  • Hydrofluorocarbons means compounds that only contain hydrogen, fluorine, and carbon.

  • Radionuclide means a radioactive element or a radioactive isotope.

  • Cannabinoid edible means food or potable liquid into which a cannabinoid concentrate, cannabinoid extract or dried marijuana leaves or flowers have been incorporated.

  • Ultra Low Sulfur Diesel Fuel means diesel fuel that has a sulfur content of no more than fifteen parts per

  • High global warming potential hydrofluorocarbons means any hydrofluorocarbons in a particular end use for which EPA’s Significant New Alternatives Policy (SNAP) program has identified other acceptable alternatives that have lower global warming potential. The SNAP list of alternatives is found at 40 CFR part 82, subpart G, with supplemental tables of alternatives available at (http://www.epa.gov/snap/ ).