Kanaan Ramadan Ahmed

University of Zakho | UoZ · Department of Chemistry

This study investigates, for the first time, the effects of dealumination of binder-free NaY type zeolite on the adsorption properties and porous structure characteristics. In this study, BF-Y zeolite was hydrothermally synthesized from kaolin and powder NaY. BF-Y was then treated with acid to increase Si/Al ratio. X-ray Diffraction (XRED), Thermal...

For the first time, a determination of the total content of oil fractions in KRG was made using two samples of Kurdistan crude oils on the basis of the n-d-M method. To determine the structural-group composition of crude oil, it was proposed to use Tawke T-21A and Shekhan PF2 Crude oils. This paper is devoted to the study structural group of crude...

The feasibility of utilizing petroleum coke as an alternative fuel for cement kilns and other industries was suggesting. The feedstock using in this study are mixture (T-21A+T-5) Tawke and Shekhan PF2 AT residues were obtained from two Iraqi-Kurdistan crude oils by removing distillates boiling point up to 350°C using the atmospheric distillation un...

Four types of Kurdistan crude oils have been studied to determine the heavy and trace metals. The significance of determining trace elements that exist in crude oils is helpful for further information about exploration, production and the refining process. In this work crude oil can be separated into products such as (gasoline, kerosene, diesel, an...

The authors have proposed a method for the selective crystallization of a SAPO-11 silicoaluminophosphate molecular sieve with a micro-mesoporous structure. It has been shown that crystallization of a silicoaluminophosphate gel, in the preparation of which its isopropoxide is used as a source of aluminum, makes it possible to obtain a SAPO-11 molecu...

This review discusses modern methods for the synthesis of highly dispersed microand micromesoporous mordenite with a high degree of crystallinity, as well as high crystallinity mordenite with a hierarchical porous structure, the granules of which represent single crystal intergrowths of various sizes, methods for modifying the mentioned crystalline...

Evaluation of crude oil and its residue using derivatography, is one of the most common physical and chemical methods analytical research. Crude oil residues 350+ obtain from two Iraq-Kurdistan crudes (Tawke T-21A well and Shekhan PF2 well) by using atmospheric distillation after removing all volatile fractions. The sample characterized by direvato...

In this work, it is shown that based on powder zeolite type Y, mono metallic and bimetallic catalysts have been developed that are promising for petroleum chemistry processes. The method is based on the preparing hydrogen form of Y zeolite by ion exchange with a solution of ammonium nitrate at a starting concentration of 70 g.l-1 and nickel nitrate...

В настоящее время в промышленных процессах изомеризации н-парафинов из бифункциональных цеолитсодержащих катализаторов нашли применение только каталитические системы на основе морденита. Их гранулы состоят из смеси морденита в H-форме и оксида алюминия в различных соотношениях, промотированный 0,4-0,6%мас. Pt. В то же время в литературе описаны син...

Abstract- For the first time, a determination of the total content of oil fractions in KRG was made using two samples of Kurdistan crude oils on the basis of the n-d-M method. To determine the structural-group composition of crude oil, it was proposed to use Tawke T-21A and Shekhan PF2 Crude oils. This paper is devoted to the study structural group...

Studying the activity of any catalyst and selectivity toward special products is easy by selecting a module reaction, and choosing appropriatecondition. In our case the reaction of α- methylstyrene dimerization was a choice to study the activity of mordenite type zeolite crystallized from natural clay mineral (kaolin P-2), and also the selectivity...

For the first time, a determination of the total content of oil fractions in KRG was made using two samples of Kurdistan crude oils on the basis of the n-d-M method. To determine the structural-group composition of crude oil, it was proposed to use Tawke T-21A and Shekhan PF2 Crude oils. This paper is devoted to the study structural group of crude...

Studying the activity of any catalyst and selectivity toward special products is easy by selecting a module reaction, and choosing appropriatecondition. In our case the reaction of alpha- methylstyrene dimerization was a choice to study the activity of mordenite type zeolite crystallized from natural clay mineral (kaolin P-2), and also the selectiv...

Catalytic activity of MOR from natural sources in dimerization reaction D oval hall

A catalyst has been prepared as binder-free shaped MOR-type zeolite in the H form promoted with 0.5 wt % platinum, and n-hexane conversion over this catalyst has been studied. It has been found that the selectivity for C4–C6 isoparaffins on the new catalyst is about 90% at 300°C, a feed space velocity of 1.5 h–1, and a hydrogen pressure of 3 MPa, w...

Изучено влияние предварительной выдержки “белой” сажи марки БС-100 при 150 155 C в течение 6 7 ч и условий кристаллизации на характеристики образцов порошкообразного цеолита типа MOR (степень кристалличности, дисперсный состав и адсорбцию молекул С 6 Н 6), а также на их каталитические свойства в реакции димеризации-метилстирола.

The effect of the preliminary holding of the BS-100 “white soot” at 150–155°C for 6 to 7 h and the crystallization conditions on both the characteristics of powdered MOR zeolite samples (degree of crystallinity, composition, particle size composition, and adsorption of C6H6 molecules) and their catalytic properties in the α-methylstyrene dimerizati...

ИЗОМЕРИЗАЦИЯ Н-ГЕКСАНА В ПРИСУТСТВИИ КАТАЛИЗАТОРОВ НА ОСНОВЕ ГРАНУЛИРОВАННОГО ЦЕОЛИТА ТИПА МОРДЕНИТ БЕЗ СВЯЗУЮЩИХ ВЕЩЕСТВ В мировом производстве автомобильных топлив наблюдается постоянная тенденция к повышению их октановых чисел (ОЧ) и улучшению экологических характеристик. Одним из процессов, позволяющих производить такие продукты, является гид...

The aim of this study is to - find a practicable synthesis method for the preparation of effective catalysts for isomerization of normal paraffin gasoline fractions based on the binders-free granular MOR-type zeolite.

Впервые разработан способ синтеза порошкообразного цеолита типа морденит, основанный на кристаллизации метакаолина в растворе силиката натрия при температуре 150 °С в течение 14 часов. Состав реакционной смеси (РС), из которой кристаллизуется цеолит, обладающий 100 % степенью кристалличности, отвечает формуле: 2,9Na2О • Аl2О3 • 12SiО2 • 300H2O. Пре...

Samp les of crystalline alu minosilicate, the granules of which are crystalline aggregates of zeo lite X with different degrees of exchange of cations Na + for cations Ca 2+ , Mg 2+ , К + or Н + were synthesized. Based on obtained samples, the adsorption of Н 2 О, СО 2 , С 6 Н 6 and n-С 7 Н 16 in static and dynamic modes is studied. The dependencie...

For the first time the synthesis method of powdery mordenite type zeolite based on crystallization of metakaolin in sodium silicate solution at temperature 150 °C for 14 hours is developed. The zeolite having 100 % crystallinity degree crystallized from the reaction mixture (RM) with the composition 2,9Na2О ∙ Аl2О3 ∙ 12SiО2 ∙ 300H2O. Previously 10...

This work involves preparation of a catalyst from bentonite ore. The ore was purified from carbonate and bicarbonate . The carbonate free bentonite (alumina silicate) was used to Catalyticallytreated decalin at 600 ° C. A second step was the treatment of the product from bentonite catalyst over more selectivecracking catalyst (W/ZrO2) at 300, 400 a...

In this research work, an activated carbon was prepared by mixing different ratios of oxidized asphalt (contains synthetic oxygenated groups) with sulfur and sulfuric acid. The process conducted first at 300 oC till no more gases evolved. Carbonization of the mixture was carried out at a temperature of 500-550 oC. The produced carbon was activated...

Evaluation of crude oil and its residue using derivatography, is one of the most common physical and chemical methods analytical research. Crude oil residues 350+ obtain from two Iraq-Kurdistan crudes (Tawke T-21A well and Shekhan PF2 well) by using atmospheric distillation after removing all volatile fractions. The sample characterized by direvato...

Preparation of Catalytic Cracking and Oxidation Catalysts from Bentonite