The catalytic hydrogenation of the LOHC compound dibenzyltoluene (H0-DBT) was investigated by ¹H NMR spectroscopy in order to elucidate reaction pathway its charging process with hydrogen context future storage applications.

Abstract The conversion of model waste plastic mixture into high-value liquid product was studied in the presence hydrogen and composites zeolite beta catalysts. For sake comparison, actual high-density polyethylene also carried out. composite catalysts were synthesized using a range silica-to-alumina ratios, alkali concentrations, hydrothermal treatment times. SEM, EDX, XRD, N 2 -BET, FTIR, py-FTIR used for characterization catalytic experiments conducted 500 ml stirred batch reactor at 20...

Liquid organic hydrogen carriers (LOHC) are potential compounds that can facilitate chemical energy storage and logistics using reversible hydrogenation. For the process development, physical solubility of in LOHCs is required. In this work, LOHC systems toluene/methylcyclohexane, N-ethylcarbazole/perhydro-N-ethylcarbazole, dibenzyltoluene/perhydrodibenzyltoluene was measured static isochoric saturation method. The data were at low pressures up to 10 bar within temperature range (293 373) K....

In backdrop of growing requirement flexible and wearable energy storage systems, textile- based supercapacitors having good flexibility, durability, superior charging-discharging rates, high power densities, cost-effective is crucial importance in the field electronics. Applicability cost effective, textile-based both synergetic effect electric double layer capacitance combined with pseudocapacitance conducting polymer electroactivity, thermal environmental stability, repeated usability...

The ever-growing carbon-based economy has led to alarming increases in greenhouse gas (GHG) emissions, particularly methane (CH4) and carbon dioxide (CO2). These emissions accelerate global warming environmental challenges. Methane Dry Reforming (DRM) offers a promising technology address this issue by converting CH4 CO2 into valuable syngas (CO + H2) mixture, which is fuel building block for the many important chemical reactions i.e. Fischer-Tropsch process. However, finding affordable...

Liquid organic hydrogen carriers (LOHC) are an interesting and promising option for the storage transport of with reasonable energy density via a reversible hydrogenation reaction. The commercially available heat transfer oil dibenzyltoluene emerged as potential carrier LOHC technology due to its availability, thermal stability, capacity. In this work, thermophysical property data (viscosity, density, surface tension, refractive index) measured partially fully hydrogenated derivatives,...

In the recent era, hydrogen has gained immense consideration as a clean-energy carrier. Its storage is, however, still main hurdle in implementation of hydrogen-based clean economy. Liquid organic carriers (LOHCs) are potential option for ambient conditions, and can contribute to clean-fuel concept future. present work, parametric simulation study was carried out release methylcyclohexane toluene system. particular, dehydrogenation reaction is investigated over six catalysts temperature...

The dehydrogenation of methylcyclohexane is a reversible reaction where dehydrogenated to toluene and hydrogen in the forward while hydrogenation occurs reverse reaction. In present work, both reactions were studied over same catalyst: 1.0 wt% Pt/zeolite beta. catalyst was prepared using ion exchange method it characterised ICP-OES, XRD, SEM, XPS, N 2 -BET, NH 3 -TPD. catalytic 1.02 cm internal diameter fixed bed tubular reactor under integral conditions effect operating on reactions....

Abstract The experimental data of six different types Pt‐containing alumina catalysts are used to study the detailed and rigorous kinetics methylcyclohexane dehydrogenation reaction. A large number kinetic rate equations were formulated using power law Langmuir‐Hinshelwood‐Hougen‐Watson (LHHW) kinetics, which tested against data. For each catalyst, elementary reaction step “the loss first molecular hydrogen” in LHHW single‐site surface mechanism was observed be rate‐determining step. form...

Abstract Waste materials from various processes comprising of polyethylene and polystyrene were analyzed for the production fuel using catalytic cracking hydrocracking in an autoclave reactor. The composite catalyst USY/SBA‐16 was synthesized lab to be employed process because its outstanding stability regenerative capability. Each two produced a with different quality quantity. Catalytic investigated at temperatures by varying percentage amount it found that yielded better as compared polyethylene.

Liquid organic hydrogen carriers (LOHC) are one of the potential candidates to assuage problem storage. Prior storage step, produced from electrolysis can contain a significant amount water, which lead formation an undesired two-phase system in LOHC tanks. In this work, solubility water liquid (toluene, dibenzyltoluene, and N-ethylcarbazol) their hydrogenated dehydrogenated forms as well mixtures these have been measured within temperature range (293 343) K. The materials is found increase...

The present study conceptualizes and simulates a methanol production process through the direct hydrogenation of captured CO2. CuO/ZnO/ZrO2 was employed as catalyst Aspen HYSYS used for simulation. Configurational optimization flowsheet carried out using step-by-step hierarchical approach. Many alternate flowsheets have resulted, their capital investment, product cost, profitability measures were calculated. discrimination among competing based on net profit percent return investment....

Abstract The methylcyclohexane-toluene-hydrogen system is a potential solution for the implementation of successful hydrogen economy. dehydrogenation reaction, backbone system, studied over 1.0 wt% Pt/θ-Al2O3. Experiments were performed in 1.02-cm internal diameter fixed-bed reactor. effects feed composition, temperature, space velocity, and pressure on conversion methylcyclohexane studied. An enhancement rate observed with addition feed. Both power law kinetics...

Waste resources are an attractive option for economical the production of biodiesel; however, oil derived from waste resource contains free fatty acids (FFA). The concentration FFAs must be reduced to below 1 wt.% before it can converted biodiesel using transesterification. acid methyl esters (FAMEs) catalysis, which is rate-limiting reaction (~4000 times slower than transesterification), with a low conversion as well, in over process. study focused on synthesizing and bifunctional catalyst...

Abstract In the present work, three zeolite‐beta based catalysts with post impregnation of aluminum are evaluated for conversion rice husk to furfural at atmospheric pressure in presence sodium chloride as promoter. The synthesized were characterized by nitrogen adsorption–desorption isotherm, scanning electron microscopy, X‐ray diffraction, and pyridine Fourier transform infrared spectroscopy. activity house synthesized/modified is studied preliminary optimized reaction conditions 375°C 47...

Dry reforming of methane has exhibited significant environmental benefits as it utilizes two major greenhouse gases (CO2 and CH4) to produce synthesis gas, a building block for hydrocarbons. This process gained industrial attention catalyst deactivation due coke deposition being hindrance. The present study focuses on the dry over Ni-supported mesoporous zirconia support. Ni metal was loaded in-house synthesized within 0–15 wt% range using wet impregnation method. physicochemical properties...