A Riser Catalytic Cracking Pilot System
A catalytic cracking and riser technology, applied in the direction of catalytic cracking, cracking, chemical/physical processes, etc., can solve the adverse effects of experimental accuracy, difficulty in ensuring the stability of gasoline feed, and affecting process conditions and parameters, etc.
Active Publication Date: 2021-10-29
SHANDONG CHAMBROAD PETROCHEMICALS CO LTD
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AI Technical Summary
Problems solved by technology
However, in the simulation experiment process of the riser catalytic cracking pilot system in the prior art, it is difficult to ensure the stability of the gasoline feed, which affects the subsequent process conditions and parameters, and ultimately has an adverse effect on the accuracy of the experiment
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0069] Example 1 Structure of the promoting tube catalytic cracking in the tube provided in Example 1 figure 2 As shown, 1 is a lift reactor, 2 is a settler, 3 is a regenerator, 4 is a gasoline tank, 5 is a nitrogen gas bottle, 6 is an electronic scale, 7 is a pressure gauge, 8 is a pressure reducing valve, 9 is The first condenser, 10 is the first liquid receiving can, 11 is a second condenser, 12 is a second liquid receiving can, 13 is a cracking air valve, 14 is a cracking gas flow meter, 15 is a third condenser, 16 is The third liquid receiving can, 17 is a flue gas valve, 18 is a flue gas flowmeter; A is the first ball valve, B is the second ball valve, C is a needle valve, and n is a nitrogen exit line, m is a nitrogen inlet line, P is the gasoline outlet pipeline, Q is the feed line, R is the first card set, and S is the second card set.
[0070] Using the above-mentioned pilot system to catalyze cracking, the specific work process is as follows:
[0071] (1) Assembly const...
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Abstract
A riser catalytic cracking pilot system, comprising: a constant pressure feeding device, which includes an electronic scale, a gasoline tank placed on the electronic scale, and a nitrogen bottle; the gasoline tank is provided with a pressure gauge, and its nitrogen inlet pipeline passes through the first The ferrule is connected with the nitrogen outlet pipeline of the nitrogen cylinder; the nitrogen outlet pipeline is provided with a pressure reducing valve; the feed pipeline is connected to the riser reactor connected with the gasoline outlet pipeline of the gasoline tank through the second ferrule; the nitrogen inlet The pipeline and the gasoline outlet pipeline are respectively equipped with ball valves; the feed pipeline is equipped with a needle valve; the settler with the feed inlet connected to the outlet of the riser reactor; the regeneration pipe with the feed inlet connected with the sediment outlet of the settler The catalyst outlet of the regenerator is connected with the catalyst inlet of the riser reactor; the condenser with the feed port connected with the gas phase outlet of the settler; the liquid receiving tank with the feed port connected with the liquid phase outlet of the condenser. The pilot system can ensure the smoothness of gasoline feeding, thereby ensuring the accuracy of the experiment to the greatest extent.
Description
Technical field [0001] The present invention relates to the field of catalytic cracking, and more particularly, to a catalytic cracking of a lift tube. Background technique [0002] Li Liquid gas is an important petrochemical raw material, which has long been widely used in civil, chemical fuel, chemical equipment production. With the continuous development of C3 and C4 deep processing technology, the economics of liquefied petroleum gas use as the raw materials of chemical products are gradually highlighted. At present, in the production process of domestic ethylene devices and propylene, MTBE and alkyl oil and other chemical products, liquefied gas plays a vital role; and catalytic cracking is highest in the secondary processing unit, which is the domestic liquefaction. The main source of gas. With the continuous development of catalytic cracking technology, more and more two-stage catalytic devices are put into production, and the raw materials of the second elevation tube are...
Claims
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IPC IPC(8): C10G11/18B01J8/18B01J8/22B01J8/26
Inventor 杨雯晶栾波
Owner SHANDONG CHAMBROAD PETROCHEMICALS CO LTD