Preparation method of modified oil shale semicoke adsorbent

An oil shale semi-coke and adsorbent technology, which is applied in the field of preparation of modified oil shale semi-coke adsorbent, can solve the problems of high price of activated carbon, increased environmental protection cost and the like, and achieves fast heating speed, energy saving and energy saving. Effect

Active Publication Date: 2017-02-22
ENERGY & ENVIRONMENT RES INST OF HEILONGJIANG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This makes the price of activated carbon high, resulting in an increase in the environmental protection cost of t

Method used

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  • Preparation method of modified oil shale semicoke adsorbent
  • Preparation method of modified oil shale semicoke adsorbent
  • Preparation method of modified oil shale semicoke adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] In this example, a modified oil shale semi-coke adsorbent is prepared by combining modified oil shale semi-coke through a three-step method, such as image 3 As shown, the specific steps are as follows:

[0054] 1. Dry distillation

[0055] The oil shale is dry-distilled by the microwave vacuum dry distillation method, and the specific steps are as follows:

[0056] First, crush the oil shale sample with a crusher, weigh 200g of oil shale particles with a diameter of 6-8mm and place them in the retort bottle of the vacuum retort device, connect the condensing device, vacuum pump, collection bottle and other devices, and turn on the vacuum pump The pressure was adjusted to -0.05MPa, and microwave equipment was used to heat it at the same time, and the oil shale was subjected to microwave vacuum dry distillation at 1000MHz and 300°C for 4 hours to obtain shale oil and oil shale semi-coke particles.

[0057] 2. Ultrasonic washing and drying

[0058] The oil shale semi-c...

Embodiment 2

[0074] In this example, a modified oil shale semi-coke adsorbent was prepared by combining modified oil shale semi-coke through a two-step method. The specific steps are as follows:

[0075] 1. Dry distillation

[0076] The oil shale is dry-distilled by the microwave vacuum dry distillation method, and the specific steps are as follows:

[0077] First, crush the oil shale sample with a crusher, weigh 200g of oil shale particles with a diameter of 8-10mm and place them in the retort bottle of the vacuum retort device, connect the condensing device, vacuum pump, collection bottle and other devices, and turn on the vacuum pump The pressure was adjusted to -0.1MPa, and microwave equipment was used to heat it at the same time. Under the conditions of 500MHz and 600°C, the oil shale was subjected to microwave vacuum dry distillation for 5 hours to obtain shale oil and oil shale semi-coke particles.

[0078] 2. Ultrasonic washing and drying

[0079] Put the above-mentioned semi-cok...

Embodiment 3

[0088]In this example, a modified oil shale semi-coke adsorbent was prepared by combining modified oil shale semi-coke through a two-step method. The specific steps are as follows:

[0089] 1. Dry distillation

[0090] The oil shale is dry-distilled by the microwave vacuum dry distillation method, and the specific steps are as follows:

[0091] First, crush the oil shale sample with a crusher, weigh 200g of oil shale particles with a diameter of 6-8mm and place them in the retort bottle of the vacuum retort device, connect the condensing device, vacuum pump, collection bottle and other devices, and turn on the vacuum pump The pressure was adjusted to -0.02MPa, and microwave equipment was used to heat it at the same time, and the oil shale was subjected to microwave vacuum dry distillation at 3000MHz and 400°C for 3 hours to obtain shale oil and oil shale semi-coke particles.

[0092] 2. Ultrasonic washing and drying

[0093] Put the above-mentioned semi-coke particles and di...

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Abstract

The invention discloses a preparation method of a modified oil shale semicoke adsorbent. The preparation method includes: adopting oil shale as a basic raw material; adopting a microwave depressurization dry distillation method to prepare oil shale semicoke; combining with a microwave high-pressure hydrothermal method, an ultrasonic mixed acid activation method and an ultrasonic mixed alkali activation method to perform two-step or three-step modification on the oil shale semicoke to prepare a proper modified oil shale semicoke adsorbent. Advantages of each method are fully utilized, and various activation methods are combined, so that activated oil shale semicoke containing a lot of functional groups on the surface is prepared, and the preparation method has the advantages of extensive raw material source, economical efficiency, environment friendliness and low production cost; by the method, the oil shale semicoke which is industrial waste can be recycled and changed into things of value, conversion of low-added-value products to high-added-value products is realized, and serious threat to environment, ecology and human health caused by the oil shale semicoke is reduced.

Description

technical field [0001] The invention relates to a method for modifying oil shale semi-coke, in particular to a method for preparing a modified oil shale semi-coke adsorbent with high specific surface area and strong adsorption performance using oil shale as a basic raw material. Background technique [0002] Oil shale, also known as oil shale, is a solid combustible organic mineral with high ash content (>40%). It is listed as a very important alternative energy source in the 21st century due to its abundant resources and feasibility of development and utilization, and its resource reserves are huge. The comprehensive development and utilization of oil shale resources has a history of more than 200 years. With the discovery and exploitation of a large number of oil resources, the price of oil has dropped to a large extent, and the annual output of oil shale in the world has declined. However, in the 1990s, the economies of all countries in the world showed a trend of rapi...

Claims

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Application Information

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IPC IPC(8): B01J20/30B01J20/20C10B53/06B01J20/28B01D53/02
CPCB01D53/02B01D2257/304B01J20/20B01J20/28016C10B53/06
Inventor 杨光陈松徐晓秋潘良
Owner ENERGY & ENVIRONMENT RES INST OF HEILONGJIANG PROVINCE
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