Abstract Partial oxidation of methane (POM) by chemical looping with CO 2 co-feeding on La 0.8 Sr 0.2 FeO 3 (LSF) perovskite catalyst yielded a highly selective operation and enabled to extend the duration reduction cycle. In this work, conversion syngas was studied Fe (x) Co (1-x) O (x = 0, 0.25, 0.5, 0.75) perovskites in chemical-looping mode, methane. The reaction conducted at 850 °C, 15 min...

During the coking process in coal chemical industry, the stability of gas collector pressure is an important guarantee for the normal production of coke oven. This paper combines the adaptive fuzzy control algorithm and the fuzzy decoupling rule to control the gas collector pressure, and coordinates the entire system through the establishment of pre-header suction supervisory control. The speci...

Pulverized coal injection has assisted the steel industry to lower operating costs, extend coke oven life and lower greenhouse emissions. As the understanding of the impact of quality of the injected coal has increased, there has been a shift from high volatile thermal coals to low volatile semi-anthracites. A heat and mass model was used to investigate the impact of the injected coal propertie...

Delayed coking is a refining process that consists of the upgrading of petroleum residues into lighter and more valuable hydrocarbon fractions by promoting thermal cracking on the residue stream. Petroleum coke is a by-product of this process and depending on its morphology it can be used as fuel for steam generation, cement calcination or as feed stock for the manufacturing of aluminum and ste...

Abstract Reforming of toluene with model exhaust gas was carried out as Reformed EGR gasoline engine mainly at 773 K Ni-M/Mg/Al (Ni 12 wt%, M = Fe, Co, Cu) prepared from corresponding hydrotalcite-like compounds. Ni-Fe/Mg/Al (Fe/Ni = 0.1–0.5) showed clearly higher performance than Ni/Mg/Al in terms activity, coke-deposition resistance and stability. In contrast, (M/Ni = 0.25, M = Co, similar be...

In catalytic industrial processes, coke deposition remains a major drawback for solid catalysts use as it causes catalyst deactivation. Extensive study of this phenomenon over the last decades has provided better understanding behavior in great number processes. Among them, pyrolysis plastics, which been identified promising process waste revalorization, is given particular attention paper. Com...

A 47-year-old African American man was admitted with 4 days of back pain, nausea and vomiting, and low urine output. There was no history of fever, dysuria, frequency, hesitancy, viral symptoms, trauma, rash, or constipation. Despite his past medical history of hypertension, diabetes mellitus, and hyperlipidemia he denied taking any medications for 18 months, including nonsteroidal anti-inflamm...

This paper describes an ontology-based organizational knowledge representation framework focused on the specification of a two kinds of ontologies: the top level ontology containing concepts characterizing the typical organizational background and COKE ontologies representing so called core organizational knowledge entities. The framework constitutes an abstract representation of organizational...