The process can be used with carbon-based human waste, including waste, plastic bottles and food, as well as naturally occurring carbon sources such as biochar, coal and petroleum coke. …

With the increasing demand of petroleum-derived products due to the world population and development, upgrading of crude oil with heavier quality and petroleum residues is unavoidable. Hydroprocessing is a preferable process for heavy oil upgrading. The process is operated with the presence of a catalyst, and catalysis plays an important …

It is a promising precursor for preparing low-cost nano carbon materials such as carbon quantum dots and porous carbon due to its high carbon content [34, 35]. ... The first step was the synthesis of petroleum coke based porous carbon. The original petroleum coke powder was physically mixed with KOH (99 %) at a mass ratio of 1:3, …

Coke. Petroleum coke, a by-product of the petroleum refining process, is produced through delayed coking of heavy residues of crude oil. In this process, viscous liquid residue is heated to a temperature between 415 °C and 550 °C at a pressure ranging from 1 to 6 bar to convert it to solid coke particles.

Highlights Nanostructured activated carbons produced from natural precursors for EDLCs were reviewed. The processing-structure-property relationships for the activated carbons were discussed. The complexity of interactions of the electrolyte ions with the carbon pore walls was analyzed. The impact of carbon microstructure, surface …

A lithium-ion capacitor fabricated using all-petroleum coke-derived carbon materials exhibits a high energy density of 80 W h/kg and a high power density of 8.4 kW/kg as well as long life span (85% capacity …

With increasing output of petroleum coke, the value-added exploitation of petroleum coke has become a tough problem. Preparing porous carbons is a traditional way to the value-added exploitation of petroleum coke. Here, we used a facile and efficient hard-templating strategy to synthesize mesoporous carbon with high surface area from …

Carbon nanotubes were synthesized by chemical vapor deposition of hydrocarbons over MgO supported Fe catalyst, which was prepared by chemical impregnation method [15]. Briefly, 1 g alkaline magnesium carbonate was immersed in 10 ml Fe(NO 3) 3 · 9H 2 O aqueous solutions (10 mg/ml), followed by sonication and drying to …

Coke chemical companies often have a deficit of coals of particularly valuable grades, the coking coals. This work studies the opportunity of producing petroleum coking additives using delayed coking during heavy petroleum residue processing. Experiments for the production of a carbon material were conducted using three kinds of heavy …

The dual-emissive N, S co-doped carbon dots (N, S-CDs) with a long emission wavelength were synthesized via solvothermal method. The N, S-CDs possess relatively high photoluminescence (PL) quantum yield (QY) (35.7%) towards near-infrared fluorescent peak up to 648 nm. With the advanced characterization techniques including …

The petroleum coke (PC) has been widely used as raw materials for the preparation of electrodes in aluminium electrolysis and lithium-ion batteries (LIB), during which massive CO 2 gases are produced. To meet global CO 2 reduction, an environmentally friendly route for utilizing PC is highly required. Here, a simple, scalable, …

Here, we used a facile and efficient hard-templating strategy to synthesize mesoporous carbon with high surface area from petroleum coke. N 2 adsorption …

Comparing the catalytic properties of nano- and micrometer-sized SAPO-34 crystals in the MTO reaction, the nanosized catalysts exhibit a longer catalyst lifetime, which is related to the enhanced diffusion and …

The catalytic gasification of petroleum coke with different ratios of K2CO3 was investigated by a thermogravimetric analyzer (TGA) using the non-isothermal method. The initial, peak, and final gasification temperatures of the petroleum coke decreased greatly as the amount of K2CO3 increased, and the catalytic reaction became saturated …

Metallurgical coke powder with an average diameter less than 5 mm is a typical by-product/waste from coke production (Luo et al., 2013) which contains more than 90% carbon (Tian et al., 2010). Approximately 40 Mt of coke powder was generated in China annually, which has caused a serious environmental issue owing to its lower …

Properties. Petroleum coke is a hard solid petroleum product in black or dark gray, and is characterized by metallic luster and porosity. It is carbon-shaped stuff composed of tiny graphite crystals formed into granules, columns or needles. The composition of petroleum coke is hydrocarbons, containing 90-97% carbon, 1.5-8% hydrogen, and ...

The needle coke was crushed using ball mill (Powteq Co., Korea, GT300) into different sizes (2–5, 5–10, 10–15 μm) for use as the filler material for the carbon block. The needle-shaped coke classified into each size and the binder pitch were mixed at a ratio of 7:3 by wt.% and then stirred at a temperature at 200 °C for 30 min to ensure ...

Petroleum coke is a solid, carbonaceous by-product of oil refining and is normally used for heating or as an anode in aluminum and steel production. These applications contribute to carbon...

The electrical conductivity values are also compared with reported graphite powder for Li-ion ... ACS Nano. 12, 11756 – 11784 ... used petroleum coke as an efficient single-carbon source for ...

Therefore, it is of great significance to develop new application of coal-based coke powder. In fact, coal-based coke powder appears to be a promising anode material for lithium-ion batteries from the viewpoints of low cost, available sources, environmentally friendly and has similar electrochemical performances with other carbonaceous anode …

Sulfonated carbon-based catalysts have been identified as promising solid acid catalysts, and petroleum coke (petcoke), a byproduct of the oil industry, is a potential feedstock for these catalysts. In this study, sulfur-containing (6.5 wt%) petcoke was used as a precursor for these catalysts through direct functionalization (i.e., without an activation …

This type of pyrolysis is more common for petroleum products. As such, both pyrolysis and carbonization are thermolysis processes but with different target products. ... Mesophase carbons (pitch and coke pyrolysis) 2. Fabrication of carbon-based micro-nano devices: 900–1100°C: ... VGCFs are nano-scale solid carbon filaments with an …

It relates to a magnesium or oil coke nanometer composite hydrogen storing material. The material is made oil coke with 30wt%-60wt% grain size 10-100nm, 2wt%-15wt% catalyst Cu,Al,Fe,Co, Ni,Pd,Mn, either one of them or several with the combination of magnesium. It bakes oil coke and catalysts in 660-1600DEG C temperature for one hour, ball grinding …

The crushed coke powder was mixed with KOH (activator) in a weight ratio of 1:2, kept in the oven at a heating rate of 10 ℃/min, and activated for 1.5 h at 680 ℃ …

This study investigated the effects of carbon-based conductive material (granular activated carbon (GAC), graphene, and petroleum coke) supplementation on anaerobic digestion (AD) of food waste (FW). GAC and graphene have been used in anaerobic digestion applications previously. Even though petroleum coke has a very …

3.1 Structural properties. The wide-angle XRD pattern of Pet graphene showed similar nature to that of sp 2 bonded carbon in Pet coke (Fig. 1(b)), which confirmed the development of comparable crystal structure [].The exfoliated sample showed both graphene and graphite phases at 23.4 ° and 25.5 °, respectively, which indicated …

More importantly, the strategy used in this work can be easily modified to prepare other nano-carbon materials from petroleum coke. Keywords. chemical synthesis energy storage nanostructure. Type ... Photocatalytic degradation of methylene blue by a combination of TiO 2-anatase and coconut shell activated carbon. Powder Technol. 225 …

The production of petroleum coke from heavy oil tar and from asphalt (derived from heavy oil tar by means of propane) at excess pressures of 0.15, 0.25, and 0.35 MPa is considered.

A carbon-based solid acid catalyst was simply prepared from petroleum coke by chemical activation and subsequent sulfonation. The structure–function SO3H …

The chemical assessment showed that the carbon samples have a difference in their composition of carbon (50–70%), hydrogen (5–7%), and ash contents (0.60–4%). The carbon content is highest in the petroleum coke. Coal-NG and Coal-NK-HA have higher volatile matters than the rest of the raw samples.