Муаммолари республика илмий-амалий конференцияси материаллари


-жадвал Нефть йўлдош газларини ароматлаш жараёнининг ҳароратга, промотор табиатига ва



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Ганиев Парпиев тўплам 1 ҚИСМ 25 05 2022

1-жадвал
Нефть йўлдош газларини ароматлаш жараёнининг ҳароратга, промотор табиатига ва 
хомашё оқимининг ҳажмий тезлигига боғлиқлиги 
Катализатор 
ЮКЦ + 
t,°C 
V, c
-1 
Конверсия,% 
Селективлик,% 
Унум,% 
2 % Zn 
Zn(CH
3
COO)
2
550 
1200 
32,0 
30,6 
9,8 
1000 
49,8 
65,5 
32,6 
600 
1200 
43,0 
55,3 
23,8 
1000 
71,5 
57,2 
40,9 
650 
1200 
76,7 
40,0 
30,7 
1000 
96,5 
41,7 
40,4 
5 % Zn 
Zn(CH
3
COO)
2
600 
1200 
50,1 
50,7 
25,4 
1000 
69,3 
60,7 
42,1 
650 
1200 
81,7 
30,7 
25,1 
2 % Zn 
Zn(NO
3
)
2
550 
1200 
54,0 
61,3 
33,1 
600 
1200 
66,7 
52,3 
34,9 
1000 
70,6 
56,8 
40,1 
625 
1200 
84,3 
48,0 
40,5 
1000 
79,7 
60,6 
48,3 
650 
1200 
90,1 
43,6 
39,3 
1000 
89,4 
54,6 
48,8 
5 % Zn 
Zn(NO
3
)
2
550 
1200 
58,6 
55,1 
32,3 
600 
1200 
75,6 
52,6 
39,8 
1000 
73,6 
53,3 
39,2 
625 
1200 
90,8 
43,2 
39,3 
1000 
89,3 
59,1 
52,8 
2% Zn 
ZnO 
550 
1200 
46,0 
49,3 
22,7 
600 
1000 
90,3 
32,3 
29,2 
1200 
69,5 
44,3 
30,8 
600 
1200 
73,5 
52,8 
38,8 
625 
1200 
91,5 
44,0 
40,3 


233 
Ҳарорат кўтарилганда нефть йўлдош газларининг конверсияси ва ароматик 
углеводородлар унуми ортади, аммо селективлик камаяди. Шу билан бирга 
катализатда бензолнинг миқдори толуолнинг гидродеалкилланиши натижасида 
ортади, газ фазада водород, метаннинг миқдорлари ҳам ортади. [1,2]. 
Фойдаланилган адабиётлар руйхати 
[1] N.I.Fayzullayev., S.Yu.Bobomurodova. Laws of Catalytic Aromatization Reaction of C
1
-
C
4
-Carbohydrates and Texture Characteristics of Catalysts//International Journal of Psychosocial 
Rehabilitation, Vol. 24, Issue 04, 2020. P-7925-7934. 
[2] S.Yu. Bobomurodova., N.I. Fayzullayev., K.A. Usmanova. Catalytic Aroma-tization of 
Oil Satellite Gases // International Journal of Advanced Science and Technology Vol. 29, No. 5, 
(2020), pp. 3031 - 3039 
OILS AND CARBOCHEMICAL PRODUCTS AS SECONDARY 
FEEDSTOCKS FOR COKE PRODUCTION 
1
Khamidov B.N. 
2
Dekhkanboev S.N. 
1
k.f.d.рrof. ACADEMY OF SCIENCES RESPUBLIK OF UZBEKISTAN INSTITUTE OF GENERAL 
AND INORGANIC CHEMISTRY 
2
Doctoral student., Andijan Machine-Building Institute 
 
In recent years, the recycling of plastics from municipal wastes and other post-
consumer sectors has increased considerably. This is because landfill storage is 
considered a provisional situation rather than a rational solution for the problem of 
wastes. Mechanical recycling is the optimum recovery option for homogeneous and 
relatively clean plastic waste streams. However, for certain post-consumer plastics 
(unsorted, small pieces, light weight and dirty varieties) this option has technical 
limitations and, consequently, other means of recycling such as feedstock recycling 
and energy recovery must be considered. The use of plastic waste as a substitute for 
coal in the steelmaking industry can be regarded as an eco-efficient alternative for 
solving the disposal of plastics and for recycling plastic wastes which are not easy to 
recycle by mechanical means. Integrated steel plants offer two routes for plastic 
waste recycling: the injection of mixed plastic wastes into the blast furnace via the 
tuyeres, a process which involves replacing pulverized coal and coke as a reducing 
agent [1]; and the incorporation of plastic wastes into coal blends as additives for 
metallurgical coke production. The combination of these two routes in the steel 
industry, blast furnace and coking processes, has been demonstrated to be viable at 
industrial scale and offers a route for improving energy recovery and feedstock 
recycling while providing economic, social and environmental benefits at the same 
time [2]. 
A coking blend (B: 23.6 wt % db volatile matter; 8.9 wt % db ash; 0.57 wt % db 
sulphur; 352dd pm Gieseler maximum fluidity) was used to prepare the mixtures with 
two plastic wastes (Pa and Pb), one coal-tar from the byproducts of a coking plant 
(Ta) and three oils one synthetic oil (Q) and two mixtures of petroleum-based oil 
wastes (R and T)-, which are commonly generated at different stages of steel 


234 
manufacture. The plastic wastes were a three- component mixture Pa (70 % HDPE, 
20 % PP, 5 % LDPE and 5 % PET) and a multicomponent waste Pb, mainly 
containing about 55 % of polyolefins and 35 % PET and PS. Simultaneous 
thermogravimetric and differential thermal analyses (TG/DTA) of the plastics, oils 
and tar were carried out up to 600°C at a rate of 10°C/min in a nitrogen atmosphere 
[3]. Changes in the plasticity of the coal blend and its blends with the wastes were 
measured using a R.B. Automazione PL2000 Gieseler plastometer, following the 
ASTM D2639 standard procedure. Co-carbonization tests were carried out in a semi-
pilot movable wall oven of over 15 kg capacity to measure the wall coking pressure 
and to produce coke for the evaluation of mechanical and chemical properties. The 
coking time was nearly 3 h and the maximum temperature in the centre of the charge 
of 950ºC. The amount of mixed plastic waste and oil added to the coking blend was 2 
wt %. The quality of the resultant cokes with a view to their use in a blast furnace 
was assessed in terms of their reactivity to CO2 at 1100°C for 2 h (CRI) and the 
mechanical strength of the partially-gasified coke (CSR) was measured by the NSC 
method (ASTM D5341). The cold mechanical strength was evaluated on 10 kg of 
coke of >50 mm initial size employing a JIS drum. The DI150/15 index is defined as 
the amount of coke >15 mm, after a mechanical treatment of 150 revolutions (JIS 
K2151). 

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