Synthesis and Study of Catalysts of Cracking on the Basis of Heteropolyacids

Ташмухамбетова, Ж. Х.; Zhakirova, N.K.; Sassykova, L.R.; Kadirbekov, K. A.; Aubakirov, Y.A.; Zhumakanova, A. S.; Nalibayeva, A.M.

doi:10.13005/ojc/330613

Cited by 5 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the bulk of all fractions is composed of aliphatic hydrocarbons with absorption bands characteristic of deformation vibrations of these molecules at 1,480-1,380 cm -1 and 980-700cm -1 . [29][30][31] Results of the X-ray phase analysis of the catalysts based on fly ash from TPP with the addition of the activated Taizhuzgen zeolite are presented in Table-4. On the optimal catalyst in the products of oxidative cracking of fuel oil, the fraction of light gas oil is the main part.…”

Section: Purification Of Gas Emissions From Sulphur Dioxidementioning

confidence: 99%

See 1 more Smart Citation

Synthesis and Testing Catalysts Based on Fly Ash From Thermal Power Plants and Natural Zeolite for Gas Emissions Purification and Catalytic Processing of Heavy Oil

Shakiyeva¹,

Sassykova²,

Khamlenko³

et al. 2021

RJC

Self Cite

View full text Add to dashboard Cite

In this study, hollow microspheres based on fly ash from the Ekibastuz coal field (Kazakhstan) and natural zeolite from the Taizhuzgen field (Kazakhstan) were used for the synthesis of catalysts. The catalysts were tested in the process of sulfur dioxide oxidation with different SO2 content in the SO2-Ar gas mixture at a flow vortex plant of the "Emulsifier" type with a capacity of 2 m 3 / h. Technology for the oxidation of SO2 with oxygen in an aqueous solution has been developed and the best technological parameters for the selective oxidation of SO2 with the production of sulfuric acid as a product have been determined. The degree of SO2 sorption is reached up to 95%. Also, the prepared catalysts were tested in the process of redox-catalytic cracking of fuel oil (with preliminary electromagnetic excitation of hydrocarbon molecules) to obtain light carbon fractions. The fuel oil of the Amangeldy Gas Processing Plant (AGPP, Kazakhstan) of the M-100 brand was studied as a feedstock. On the optimal catalyst in the products of oxidative cracking of fuel oil, the fraction of light gas oil makes up the main part. The resulting light gas oil contains a significant amount of alpha-olefins, which are scarce raw materials for the production of synthetic additives and oils.

show abstract

Section: Purification Of Gas Emissions From Sulphur Dioxidementioning

confidence: 99%

“…It is known from the literature that the best synthetic oils that ensure the operation of equipment in cold climatic conditions are obtained based on oligomers α -olefins C8-C12. [31][32][33][34]…”

Section: Purification Of Gas Emissions From Sulphur Dioxidementioning

confidence: 99%

Synthesis and Testing Catalysts Based on Fly Ash From Thermal Power Plants and Natural Zeolite for Gas Emissions Purification and Catalytic Processing of Heavy Oil

Shakiyeva¹,

Sassykova²,

Khamlenko³

et al. 2021

RJC

Self Cite

View full text Add to dashboard Cite

show abstract

“…From the scientific literature, it is well known that acid-base characteristics of the catalysts are essential for the process of hydrocarbon processing [21][22][23][24][25] . Acid characteristics of the developed catalysts were investigated by the method of temperature-programmed desorption of ammonia (Table -2).…”

Section: Physicochemical Research Of the Synthesized Catalystsmentioning

confidence: 99%

“…Acid characteristics of the developed catalysts were investigated by the method of temperature-programmed desorption of ammonia (Table -2). It is known that the activity of catalysts is associated with the surface structure, dispersion and state of the active centers 16,[24][25][26][27] . TEM study of the structure and state of the active centers of the synthesized catalysts was carried out.…”

Section: Physicochemical Research Of the Synthesized Catalystsmentioning

confidence: 99%

Hydrofining of Petrol Fractions of Oil on Modified Alumina Catalysts

Tuktin¹,

Tenizbayeva²,

Omarova³

et al. 2019

RJC

View full text Add to dashboard Cite

The paper describes the study of the gasoline fraction hydrofining on the zeolite-containing alumina catalysts modified with variable valence metals, additives of phosphorus and a rare-earth element. In this work, the new zeolite-containing alumina catalysts were developed: NiO-MoO 3 -E-P-HZSM-HY-Al 2 O 3 , CoO-MoO 3 -E-P-HZSM-HY-Al 2 O 3 and CoO-WO 3 -E-P-Al 2 O 3 -ZSM, where E is a rare-earth element. The research was carried out under high-pressure at the flow installation with a fixed catalyst bed. The smallest residual sulfur content (0.0005%) is observed in hydrotreated gasoline on the catalyst CoO-WO 3 -E-P-HZSM-HY-Al 2 O 3 , which is 2-4 times lower than on the catalysts CoO-MoO 3 -E-P-HZSM-HY-Al 2 O 3 and NiO-MoO 3 -E-P-HZSM-HY-Al 2 O 3 and lower than is limited by the Euro-5 standard. When tested on the NiO-MoO 3 -E-P-HZSM-HY-Al 2 O 3 catalyst, the octane number of the gasoline as a result of hydrotreating increased to 88.6, which is significantly higher than on other catalysts. According to electron microscopy, the catalysts are highly dispersed, the components of the active phase metals are mainly in the oxidized state, forming clusters-associates on the surface. The structure, dispersion and state of the clusters are related to the nature of the catalyst components. The synthesized catalysts make it possible to produce high-octane low-sulfur gasoline that meets European standards.

show abstract

“…The main obstacle to the processing of fuel oil in catalytic cracking (FCC) units is the increased coking ability of the raw materials and the high content of metals, mainly nickel and vanadium. The need to create low-cost technologies for the processing of heavy raw materials in the industry of Kazakhstan has increased the urgency of finding new methods and developing efficient catalytic systems based on local raw materials (Tashmukhambetova et al, 2017;Tulepov et al, 2019;Kairbekov et al, 2015). The word "cenosphere" is named on the basis of the Greek words "kenos" -"hollow" and "sphaera" -"sphere".…”

Section: Introductionmentioning

confidence: 99%

Modified Aluminosilicate Catalysts Based on Cenospheres of Power Plants for Processing Fuel Oil into Light Fractions

Sendilvelan¹,

Tjprc²

2019

IJMPERD

View full text Add to dashboard Cite

In this work the narrow fractions of non-perforated cenospheres from the combustion of Ekibastuz coal at the Almaty TPP-2 with an aluminosilicate module SiO 2 /Al 2 O 3 = 3.2 and an iron content of 3.03-3.67 wt. % in Fe 2 O 3 have been researched. It was shown that the composite containing of activated zeolite based on Almaty TPP-2 cenospheres is optimal for obtaining of light gas oil during cracking in both inert medium and trace air quantity. The composite also showed maximum activity during oxidative cracking of vacuum distillate of Zhetybay oil (Kazakhstan). In the presence of the developed catalysts, the symmetric decomposition of the high-molecular-weight hydrocarbons contained in fuel oil was with the formation of alkenes and alkanes of the relative homologous series, starting from heptene-1 and heptane endingwith octadecen-1 and octadecane. As a result of the study, an innovative method of oxidative cracking of fuel oil in the presence of cheap catalysts, synthesized on the basis of natural zeolites of Kazakhstan deposits and zeolites obtained from fly ash from thermal power plants has been developed.

show abstract

Synthesis and Study of Catalysts of Cracking on the Basis of Heteropolyacids

Cited by 5 publications

References 7 publications

Synthesis and Testing Catalysts Based on Fly Ash From Thermal Power Plants and Natural Zeolite for Gas Emissions Purification and Catalytic Processing of Heavy Oil

Synthesis and Testing Catalysts Based on Fly Ash From Thermal Power Plants and Natural Zeolite for Gas Emissions Purification and Catalytic Processing of Heavy Oil

Hydrofining of Petrol Fractions of Oil on Modified Alumina Catalysts

Modified Aluminosilicate Catalysts Based on Cenospheres of Power Plants for Processing Fuel Oil into Light Fractions

Contact Info

Product

Resources

About