Unlock instant, AI-driven research and patent intelligence for your innovation.
A catalytic cracking diesel conversion process and system
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology for catalytic cracking diesel oil and process, which is used in the petroleum industry, hydrotreating process, processing hydrocarbon oil, etc.
Active Publication Date: 2019-01-15
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] Aiming at the problems existing in the existing catalytic cracking diesel oil conversion device, the present invention provides a catalytic cracking diesel oil conversion process and system. The process can effectively meet the requirements of the catalytic diesel oil hydrogenation conversion process in the initial and middle stages of operation through the switchable operation design of the heating furnace. , The different requirements for refining and cracking reaction temperatures in the later stage shorten the initial stabilization time of the catalytic diesel conversion unit and reduce the cost
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0037] (1) Take 200g of NaY molecular sieve powder prepared in the laboratory, mix with ammonium nitrate with a concentration of 0.6mol / L according to the liquid-to-solid ratio of 3:1, exchange for 3 hours at 80°C, repeat this process 3 times, the exchanged Y molecular sieve The content of Na is Na 2 O is calculated as 2.0%;
[0038] (2) Hydrothermal treatment of the Y molecular sieve obtained in step (1) at 650°C and 0.1MPa for 1 hour;
[0039] (3) The molecular sieve obtained in step (2) is in accordance with the liquid-solid ratio of 15:1 and the hydrochloric acid solution with a concentration of 0.8mol / L (concentration is H + Calculate) Mix and treat at 90℃ for 2 hours;
[0040] (4) The molecular sieve obtained in step (3) was dried at 130°C for 25 minutes;
[0041] (5) Take the molecular sieve obtained in hexadiene soaking step (4) for 40 minutes, and then heat it at 150°C for 25 hours in an air atmosphere;
[0042] (6) The molecular sieve obtained in step (5) is treated with a li...
Embodiment 2
[0046] (1) Take 200g of NaY molecular sieve powder prepared in the laboratory, mix with ammonium nitrate with a concentration of 1.5mol / L according to the liquid-solid ratio of 4:1, exchange for 2 hours at 80°C, repeat this process twice, exchange the Y molecular sieve The content of Na is Na 2 O is calculated as 2.5%;
[0047] (2) Hydrothermal treatment of the Y molecular sieve obtained in step (1) at 640°C and 0.2MPa for 2 hours;
[0048] (3) The molecular sieve obtained in step (2) is in accordance with the liquid-solid ratio of 20:1 and the citric acid solution with a concentration of 1.5mol / L (concentration is H + Calculate) Mix and treat at 85℃ for 2 hours;
[0049] (4) The molecular sieve obtained in step (3) was dried at 140°C for 8 minutes;
[0050] (5) Take the molecular sieve obtained in hexadiene soaking step (4) for 40 minutes, and then heat it at 150°C for 25 hours in an air atmosphere;
[0051] (6) The molecular sieve obtained in step (5) is treated at 60°C for 2 hours a...
Embodiment 3
[0055] (1) Configure W-Ni dipping solution: take 480g of ammonium metatungstate and 480g of nickel nitrate, dissolve in water, and prepare 1000ml of dipping solution. The active metal in the resulting dipping solution is WO 3 The calculated content of NiO and NiO are 33g / 100ml and 10g / 100ml respectively, and the solution number is RY;
[0056] (2) Mix 50g of modified Y molecular sieve I with 50g of macroporous alumina, add 4g / 100ml of dilute nitric acid, mix and roll in a mixer to an extrudable shape, and extrude on an extruder to obtain carrier T-1;
[0057] (3) Take 60g of T-1 into 120ml RY impregnation solution and soak for 2 hours, then dry at 120°C for 4 hours, and calcinate at 500°C for 3 hours to obtain a hydrocracking catalyst, numbered Cat-1.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Property
Measurement
Unit
specific surface area
aaaaa
aaaaa
specific surface area
aaaaa
aaaaa
specific surface area
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a catalytic cracking diesel oil conversion technology and a system. The technology comprises the following steps: in the initial conversion period, mixing heat-exchanged catalytic cracking diesel oil with hydrogen and then entering into a refining area for performing hydrofining reaction, heating a reaction effluent by a heating furnace and then guiding into a cracking area for performing hydrocracking reaction and guiding the reaction effluent into a gas-liquid separating area; in the middle and later conversion periods, mixing the heat-exchanged catalytic cracking diesel oil with hydrogen and then heating by the heating furnace, guiding into a refining area for performing hydrofining reaction, directly guiding the reaction effluent into the cracking area for performing hydrocracking reaction, guiding the reaction effluent into the gas-liquid separating area for performing gas-liquid separation, guiding an acquired liquid phase into a distilling area and distilling the product. Through the switchable operation design for the heating furnace, the technology can effectively meet different requirements for refining and cracking reaction temperature in the initial, middle and later running periods of the catalytic cracking diesel oil conversion process, can shorten the stabilizing time in the initial running period of a catalytic diesel oil conversion device and can lower the cost.
Description
Technical field [0001] The invention relates to a hydrocarbon hydrotreating process and system, in particular to a catalytic cracking diesel conversion process and system. Background technique [0002] Since the beginning of the new century, with the increasing awareness of people's environmental protection, the increasingly strict national environmental protection regulations and the rapid development of the national economy, the demand for clean motor fuels in all countries in the world has been increasing. Catalytic cracking (FCC) technology is one of the main technological means for the lightening of heavy oil, and it occupies a relatively important position in oil refining companies around the world. The annual processing capacity of my country's catalytic cracking unit has now exceeded 100 million tons, second only to the United States. In the composition of gasoline and diesel products, catalytic cracking gasoline accounts for about 80%, and catalytic diesel oil accounts ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More