Gasoline preparing method by refining plant oil and oxygenated chemicals together

A compound and vegetable oil technology, which is applied in the preparation of liquid hydrocarbon mixtures, the petroleum industry, biological raw materials, etc., can solve the problems of interfering with the ability of catalysts to promote reactions, catalyst failure, etc., to facilitate catalytic conversion, improve selectivity, and reduce energy consumption. Effect

Active Publication Date: 2014-05-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The buildup of coke interferes with the ability of the catalyst to promote the reaction and as a result renders the catalyst ineffective

Method used

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  • Gasoline preparing method by refining plant oil and oxygenated chemicals together
  • Gasoline preparing method by refining plant oil and oxygenated chemicals together
  • Gasoline preparing method by refining plant oil and oxygenated chemicals together

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 adopts attached figure 1 In the medium-scale test device shown, the outlet temperature of the riser is 490°C, and the temperature of the regenerant entering the riser is 580°C. The pressure of the reactor is 0.3MPa, and the weight hourly space velocity of the raw material is 6h -1 , the raw materials are palm oil and methanol, and the mass ratio of the two is 3:1. The mass ratio of the catalyst flow rate to the raw material flow rate was 5. See Table 3 for product distribution and Table 4 for gasoline hydrocarbon composition.

Embodiment 2

[0044] Example uses image 3 The mesoscale test setup shown. The raw material for the riser is 80wt% palm oil + 20wt% soybean oil. After the vegetable oil is preheated at 200°C, it enters the riser through the nozzle of the riser and reacts with the catalyst coming from the riser. The temperature of the regenerant entering the riser from the regenerator is 500°C. Preheated methanol at 200°C enters the bed from the fluid distribution pipe below the bed to contact and react with the catalyst. The mass ratio of vegetable oil to methanol is 4:1. The bed temperature of the fluidized bed at the outlet of the riser is 380°C, the reactor pressure is 0.3MPa, and the vegetable oil weight hourly space velocity is 6h -1 , methanol weight hourly space velocity is 2h -1 . See Table 3 for product distribution and Table 4 for gasoline hydrocarbon composition.

[0045] Table 1

[0046] Element

palm oil

Soybean oil

Palmitic acid, wt%

35

14

Stea...

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PUM

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Abstract

A gasoline preparing method by refining plant oil and oxygenated chemicals together. The method comprises the steps that: preheated plant oil and oxygenated chemicals are injected into a fluidized bed reactor to contact with a catalyst containing a molecular sieve and carry out a catalytic conversion reaction; then generated reaction oil gas and a spent catalyst are separated; the separated spent catalyst is treated with stripping and singe and sent back to the reactor for cycle use; the separated reaction oil gas is fractionated to obtain target products of liquefied gas, gasoline, diesel oil and heavy oil. According to the method provided by the invention, a co-refining of the plant oil and the oxygenated chemicals is conducive to reaction temperature control, and can raise a selectivity of target product gasoline and energy consumption. As for the reaction apparatus, equipment flow is simplified because a heat exchanger for removing reaction heat is omitted.

Description

technical field [0001] The invention relates to a method for preparing gasoline by catalytic conversion of hydrocarbons, more specifically, a method for preparing gasoline by catalytic conversion of vegetable oil, oxygen-containing compounds and catalysts. Background technique [0002] At present, the world's demand for energy is increasing day by day, the shortage of oil resources is becoming more and more serious, and the quality of crude oil is gradually deteriorating. The waste gas emitted by the combustion of oil products has aggravated the deterioration of the environment. Therefore, countries around the world are actively exploring and developing renewable resources from the perspective of environmental protection and resource strategy. Vegetable oil has become one of the research objects because of its greenness and renewable energy. [0003] The main chemical composition of vegetable oil is triglyceride, which mainly contains carbon, hydrogen, oxygen, sulfur, nitro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G3/00
CPCY02P30/20
Inventor 朱丙田候栓弟武雪峰张同旺张占柱
Owner CHINA PETROLEUM & CHEM CORP
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