C5 and C6 alkane and C4 mixing process for production of ethylene and propylene
A carbon five carbon six alkane, ethylene propylene technology, applied in the production of bulk chemicals, hydrocarbon cracking to produce hydrocarbons and other directions, can solve the problems of insignificant effect, complicated process, low yield of ethylene propylene, etc., to reduce costs and improve the use of rate effect
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Embodiment 1
[0048] The dehydrogenation catalyst adopts the HTPB-DH dehydrogenation catalyst of Haitai Company, in which Al 2 o 3 As the carrier, Pt and Cl are used as active components, wherein the mass content of Pt is 1%, the mass content of chlorine is 2%, and the specific surface area is 200m 2 / g, pore volume 0.5ml / g, diameter 1.59mm, bulk density 0.6g / cm 3 .
[0049] Catalytic cracking catalyst adopts the method preparation of CN101045212A catalyst preparation embodiment 1, and its specific preparation steps are as follows: get 284 grams of sodium metasilicate, dissolve into solution A with 300 grams of distilled water, get 33.3 grams of aluminum sulfate, make solution with 100 grams of distilled water B, slowly pour B solution into A solution, stir vigorously, then add 24.4 grams of ethylenediamine, under stirring, adjust the pH value to 11.5 with dilute sulfuric acid, and control the molar ratio of the sol: Si: A1: Ethylenediamine :H 2 0=1︰0.1︰0.4︰40, put the mixed solution in...
Embodiment 2
[0054] The dehydrogenation catalyst is provided by the Key Laboratory of Fine Chemical Industry of Xinjiang University with a load of 10% MoO 3 γ-Al 2 o 3 Catalyst, its preparation process is to take a certain amount of (NH 4 ) 6 Mo 7 o 24 4H 2 Impregnation of γ-Al after O was dissolved in hot water 2 o 3 , stirred and evaporated to dryness, dried at 120°C for 10h, and finally calcined at 550°C for 4h to obtain the catalyst.
[0055] Catalytic cracking catalyst adopts the method preparation of CN1676499A catalyst preparation example 4, and concrete steps are as follows: 45gZRP molecular sieve (provided by Beijing Wanshuyuan Economic Technology Trade Center, SiO 2 / Al 2 o 3 >200), 45g silicon oxide (specific surface area>200m 2 / g of high-purity silica), 50g of zirconia and 2g of safflower powder, mix, add 80ml of 5% nitric acid after mixing, extrude into 2mm cylindrical shape after mixing, and cut into 2-3mm, at 80 ℃ Dry at 120°C for 10 hours, then calcined at 580°...
Embodiment 3
[0060] The dehydrogenation catalyst is prepared by the method of Example 1 in the patent CN101618319A. Dissolve 2.24 grams of calcium oxide and 3.1 grams of polyethylene glycol in 120ml of deionized water, heat treatment at 240°C for 24 hours, and burn it at 600°C for 5 hours, then add it with an appropriate amount of absolute ethanol, 7.2 grams of chromium nitrate, 6 grams of trisodium Aluminum oxide is mixed evenly, dried for 12 hours, ground evenly, burned at 550°C for 3 hours, and then used for later use.
[0061] Catalyzed cracking catalyst adopts the method preparation of CN1927785A catalyst preparation example 1, and concrete steps are as follows: 100 grams of NaZSM-5 molecular sieves of molar silicon-aluminum ratio 200, first 600 ℃ of baking under nitrogen flow 4 hours demolding agent, then with 0.1M to hydrochloric acid 1 Exchange at 80°C for three to four times, wash with deionized water until there is no chlorine radical, and dry at 120°C for later use. 30 grams of...
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