Crude oil conversion to chemicals over green synthesized ZSM-5 zeolite

Jermy, B. Rabindran; Tanimu, Abdulkadir; Siddiqui, M. Abdulbari; Qureshi, Ziyauddin S.; Aitani, Abdullah M.; Akah, Aaron; Xu, Q.; AlHerz, Mansour

doi:10.1016/j.fuproc.2022.107610

Cited by 17 publications

(4 citation statements)

References 45 publications

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“…90 It was noticed that the precalcination of ZSM-5 at 770 °C helped to retain the crystallinity of the zeolite after desilication, and the zeolite exhibited a higher aromatic selectivity (59%) as compared to other catalysts. The green ZSM-5 prepared 91 from natural clay minerals (halloysite and bolus alpha) was impregnated with Mn (0.2 wt %). The Mn/ZSM-5(green) was used for the steam catalytic cracking of crude oil to light olefins and aromatics at 675 °C in a fixed-bed reactor.…”

Section: Isomerization Of N-cmentioning

confidence: 99%

Review on the Catalytic Conversion of Naphtha to Aromatics: Advances and Outlook

et al. 2023

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Naphtha is the main feedstock used in the production of gasoline and benzene, toluene, and xylene (BTX) aromatics, which are widely applied as chemical intermediates in the fields of packaging, synthetic fibers, and solvents. This article reviews the recent literature regarding the catalytic conversion of naphtha to higher-value BTX in terms of catalysts used, catalyst properties, reaction mechanisms, kinetic modeling, operating conditions, and product selectivity. Most studies focused on ZSM-5 and ZSM-5 modified using Ga, Zn, Ni, Co, Cu, Fe, Mo, W, Sn, etc. The promoting effects of metals and catalyst properties on naphtha conversion and the selectivity toward aromatics were critically analyzed. Pt-promoted zeolite L exhibited an excellent catalytic performance in naphtha aromatization for the selective production of benzene using n-hexane. Other studies investigated different types of zeolites, such as ZSM-11, BEA, X, Y, MOR, ZRP, and TsVM high-silica zeolites, with distinct properties. Nonzeolitic catalysts included Pt, Re, and Sn supported on Al 2 O 3 ; activated carbon; and mesoporous silicates (MCM-41 and SBA-15). Finally, the challenges and perspectives of naphtha aromatization related to emerging naphtha types, cofeeding, and improved catalysts are highlighted.

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Section: Isomerization Of N-cmentioning

confidence: 99%

Review on the Catalytic Conversion of Naphtha to Aromatics: Advances and Outlook

et al. 2023

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“…In this regard, the development of innovative syntheses and alternative raw materials have a focal point. An example of a recent eco-friendly approach is template-free synthesis, which has been tested for the production of the MFI framework structure [173][174][175]. Notably, tubular clay nanomaterials, specifically Halloysite, have been utilized as triple-functional materials: the source of alumina and silica, and hard template [176][177][178][179][180].…”

Section: Cost-effective and Eco-friendly Synthesis Approachesmentioning

confidence: 99%

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Aljajan,

Stytsenko,

Rubtsova

et al. 2023

Catalysts

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Upgrading the properties of diesel fractions is considered one of the crucial processes in the petrochemical industry; and for this purpose in laboratory-scale researching it is studied on the base of the hydroisomerization of n-hexadecane as a main model reaction. Recently, zeolite-based bifunctional catalysts have proven their efficiency due to their remarkable acidity, shape-selectivity and relative resistance to deactivation. In this review, different topological-type zeolite-based catalysts, the mechanism of their catalytic effect in n-C16 isomerization, and the principles of shape-selectivity are reviewed. A comparison of their structural-operational characteristics is made. The impact of some feedstock impurities on the catalyst’s performance and deactivation due to carbonaceous deposits as well as various modern eco-friendly cost-effective synthesis techniques are also discussed.

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“…With the increase of electric vehicles, fossil fuel consumption continues to decrease. Traditional refineries that mainly produce fuel oil have begun to transform to produce chemical raw materials such as light olefins [33,34]. Steam cracking was an important process for the traditional production of light olefins, but it has problems such as high energy consumption, resulting in a waste of resources.…”

Section: Light Olefin Production Schemementioning

confidence: 99%

Effect of Molecular Structure of C10 Hydrocarbons on Production of Light Olefins in Catalytic Cracking

Han

2023

Catalysts

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The effect of the molecular structure of feedstock on the cracking reaction of C10 hydrocarbons to ethylene and propylene over H-ZSM-5 zeolite was investigated. To better compare the effect of decane on the production of light olefins, the thermal cracking and catalytic cracking performance of decane were first investigated. As a comparison, the thermal cracking and catalytic cracking of decane were studied by cracking over quartz sand and H-ZSM-5. Compared with the thermal cracking reaction over quartz sand, the catalytic cracking reaction of decane over H-ZSM-5 has a significantly higher conversion and light olefins selectivity, especially when the reaction temperature was lower than 600 °C. On this basis, the catalytic cracking reactions of decane and decene over H-ZSM-5 were further compared. It was found that decene with a double bond structure had high reactivity over H-ZSM-5 and was almost completely converted, and the product was mainly olefin. Compared with decane as feedstock, it has a lower methane yield and higher selectivity of light olefins. Therefore, decene was more suitable for the production of light olefins than decane. To this end, we designed a new light olefin production process. Through olefin cracking, the yield of light olefins in the product can be effectively improved, and the proportion of different light olefins such as ethylene, propylene and butene can be flexibly adjusted.

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Crude oil conversion to chemicals over green synthesized ZSM-5 zeolite

Cited by 17 publications

References 45 publications

Review on the Catalytic Conversion of Naphtha to Aromatics: Advances and Outlook

Review on the Catalytic Conversion of Naphtha to Aromatics: Advances and Outlook

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Effect of Molecular Structure of C10 Hydrocarbons on Production of Light Olefins in Catalytic Cracking

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