Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing chemical material by hydrocracking of heavy hydrocarbon oil

A heavy hydrocarbon oil, hydrocracking technology, applied in hydrocarbon oil cracking, chemical instruments and methods, petroleum industry and other directions, can solve the problem of low selectivity of heavy naphtha

Active Publication Date: 2014-04-02
PETROCHINA CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the catalyst is used in the hydrocracking reaction of hydrocarbons, it has high selectivity to middle distillates but low selectivity to heavy naphtha

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
  • Method for preparing chemical material by hydrocracking of heavy hydrocarbon oil
  • Method for preparing chemical material by hydrocracking of heavy hydrocarbon oil
  • Method for preparing chemical material by hydrocracking of heavy hydrocarbon oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The small grain high silicon aluminum ratio NaY type molecular sieve (skeleton SiO 2 / Al 2 o 3 The molar ratio is 6.2, the grain diameter is 200nm~300nm, and the unit cell constant is 2.462nm) adding NH 4 The first ammonium exchange was carried out in aqueous Cl solution. The mass ratio of each material NaY:NH 4 Cl:H 2 The ratio of O is 1:0.5:5, the exchange liquid temperature is 50°C, the stirring exchange time is 24hr, and the pH value of the exchange liquid is adjusted between 2.1 and 2.2 by using 5mol / L hydrochloric acid solution. After the exchange, filter, wash, dry, grind into fine powder and collect to obtain NH 4 NaY. put the above NH 4 NaY molecular sieves were placed in a muffle furnace, the temperature was programmed to rise to 500°C, and calcined for 6 hours to obtain HY samples. The HY sample was subjected to the second ammonium exchange in the same way as the first ammonium exchange. Then, the sample after the second ammonium exchange was subject...

Embodiment 2

[0030] Add small grain high silicon to aluminum ratio NaY type molecular sieve into NH 4 The first ammonium exchange was carried out in aqueous Cl solution. The mass ratio of each material NaY:NH 4 Cl:H 2 The ratio of O is 1:1.2:12, the exchange liquid temperature is 90° C., the stirring exchange time is 12 hr, and the pH value of the exchange liquid is adjusted between 3.5 and 3.6 by using 2 mol / L hydrochloric acid solution. After the exchange, filter, wash, dry, grind into fine powder and collect to obtain NH 4 NaY. put the above NH 4 NaY molecular sieves were placed in a muffle furnace, the temperature was programmed to rise to 600°C, and calcined for 4 hours to obtain HY samples. The HY sample was subjected to the second ammonium exchange in the same way as the first ammonium exchange. Then, the sample after the second ammonium exchange was subjected to hydrothermal treatment under the condition that the temperature was programmed to 650° C. and treated with 50% stea...

Embodiment 3

[0032] Add small grain high silicon to aluminum ratio NaY type molecular sieve into NH 4 The first ammonium exchange was carried out in aqueous Cl solution. The mass ratio of each material NaY:NH 4 Cl:H 2 The ratio of O is 1:2.0:20, the exchange liquid temperature is 120°C, the stirring exchange time is 0.5 hr, and the pH value of the exchange liquid is adjusted between 4.8 and 4.9 by using 0.1 mol / L hydrochloric acid solution. After the exchange, filter, wash, dry, grind into fine powder and collect to obtain NH 4 NaY. put the above NH 4 NaY molecular sieves were placed in a muffle furnace, the temperature was programmed to rise to 800°C, and calcined for 1 hr to obtain HY samples. The HY sample was subjected to the second ammonium exchange in the same way as the first ammonium exchange. Then, the sample after the second ammonium exchange was subjected to hydrothermal treatment under the condition that the temperature was programmed to 750°C and treated with 20% water v...

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

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a chemical material by hydrocracking of heavy hydrocarbon oil, which comprises the step of catalytically hydrogenating a heavy hydrocarbon oil raw material with the nitrogen content of 0.1-2000mug / g by controlling the distillation range to 250-570 DEG C, wherein a catalyst comprises in percentage by weight: 10-65% of small crystalline ultra-stable Y-type molecular sieves, 10-60% of amorphous silicon aluminum, 10-60% of alumina, 12-30% of a metal oxide of the VIB group and 3-8% of a metal oxide of the VIII group; and the small crystalline ultra-stable Y-type molecular sieves are obtained by the steps of performing ammonium exchange on small crystalline NaY-type molecular sieves with high silicon-aluminum ratio and then performing hydrothermal treatment, wherein a silicon-aluminum ratio (a molar ratio of SiO2 to Al2O3) of a NaY framework is 6.0-7.0. The range of heavy raw oil suitable to be processed by the method is very wide, and the catalyst reflects high activity and high chemical material yield.

Description

technical field [0001] The invention relates to a method for preparing chemical raw materials through hydrocracking of heavy hydrocarbon oil. The method uses hydrocracking to convert heavy hydrocarbon oil into light naphtha, heavy naphtha with high aromatic potential content and low BMCI value tail oil. Background technique [0002] With the rapid development of the petrochemical industry, my country's demand for various chemical raw materials is increasing. However, with the increasing trend of crude oil becoming heavier and inferior, the proportion suitable for producing chemical raw materials is decreasing day by day, so the shortage of chemical raw materials has become a bottleneck that seriously restricts the development of the chemical industry. According to statistics, in 2004, my country's ethylene output was 6.2664 million tons per year. With the new construction, reconstruction and expansion of cracking ethylene plants, the ethylene production increased to 10.5 mi...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/20B01J29/16B01J32/00B01J29/08
Inventor 孙发民申宝剑吕倩戴宝琴郭巧霞田然张志华王亮申波俊秦丽红王艳丹王甫村王东青李海岩郭淑芝夏恩冬李瑞峰
Owner PETROCHINA CO LTD