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Sludge petroleum charred slurry and preparing process and application thereof

A technology of petroleum coke and sludge, which is applied in the petroleum industry, coke ovens, special forms of dry distillation, etc., can solve the problems of inability to provide heat and heat loss, achieve large-scale industrial application prospects, improve pulping performance, and reduce secondary pollution Effect

Active Publication Date: 2007-10-17
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water in the sludge petroleum coke slurry not only cannot provide heat, but also evaporates during the combustion and gasification process to cause heat loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Raw material

[0030] (1) Sewage sludge produced by a sewage treatment plant, water content ------80% (weight);

[0031] (2) Petroleum coke from a refinery, sulfur content ------ 0.6%, ash content ------ 0.8%;

[0032] (3) Dispersant (sodium lignosulfonate);

[0033] (4) Sludge modification agent (sodium carbonate);

[0034] (5) water.

[0035] 2. Preparation conditions

[0036] (1) Raw material ratio (parts by weight)

[0037] 100 parts of petroleum coke, 25 parts of hydrous sludge, 50 parts of water, 0.01 part of dispersant, and 0.01 part of sludge modifier.

[0038] (2) Preparation method

[0039] Firstly, the sewage sludge is fully mixed with the sludge modifying agent, and left for 4 hours to obtain the modified sludge. Then grind and mix the modified sludge, petroleum coke, water and dispersant to make high-concentration sludge petroleum coke slurry.

[0040] 3. Product performance indicators

[0041] (1) Appearance shape --- gray black paste. At 25°C...

Embodiment 2

[0048] 1. Raw materials

[0049] (1) Sewage sludge produced by a sewage treatment plant, water content ------80% (weight);

[0050] (2) Petroleum coke from a refinery, sulfur content ------ 4%, ash content ------ 0.6%;

[0051] (3) Dispersant (sodium methylnaphthalenesulfonate formaldehyde condensate);

[0052] (4) Sludge modification agent (calcium hydroxide);

[0053] (5) water.

[0054] 2. Preparation conditions

[0055] (1) Raw material ratio (parts by weight)

[0056] 150 parts of petroleum coke, 45 parts of sewage sludge, 60 parts of water, 1 part of dispersant, 0.5 parts of sludge modifier.

[0057] (2) Preparation method

[0058] First, the sewage sludge is fully mixed with the sludge modifying agent, and left for 3 days to obtain the modified sludge. Then grind and mix the modified sludge, petroleum coke, water and dispersant to make high-concentration sludge petroleum coke slurry.

[0059] 3. Product performance indicators

[0060] (1) Appearance shape --- g...

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PUM

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Abstract

The invention discloses a sludge petroleum coke slurry and its producing method and application. Said sludge petroleum coke slurry contains 100-200 shares of petroleum coke by weight, 5-100 shares of moisture sludge by weight, 5-200 shares of water by weight, 0.01-2 shares of dispersant by weight, 0.01-2 shares of sludge modification reagent by weight. The produced high concentration sludge petroleum coke slurry can be a burning fuel or producing synthetic gas and hydrogen by gasification. It not only fully utilize the caloric caloricity in the sludge and gets over the problems that the present moisture sludge has a high heat treatment energy consumption and the offgas and dregs are harmful and poisonous and has a big industrialization prospect.

Description

technical field [0001] The invention relates to a sludge petroleum coke slurry and its preparation method and application, in particular to a preparation method of high-concentration sludge petroleum coke slurry and its application. Background technique [0002] The oil refining industry produces a large amount of petroleum coke every year. The main components of petroleum coke are hydrocarbons, and its low calorific value is about 1.5 to 2 times that of coal. With the increase of sulfur content in crude oil, the amount of high sulfur petroleum coke with sulfur content greater than 3% increases significantly. Direct combustion of high-sulfur petroleum coke will produce a large amount of SO 2 ; and directly used for gasification, although it can avoid the generation of SO 2 (generating H 2 S, easy to recover as sulfur), and due to the poor activity of petroleum coke, the fuel utilization efficiency is not high. At the same time, petroleum coke pulping has disadvantages s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/04C10L5/46C10B53/00
CPCY02E50/10Y02E50/30
Inventor 刘海峰李伟锋王辅臣于广锁龚欣王亦飞于遵宏邹建辉李伟东周志杰代正华陈雪莉梁钦锋郭晓镭王兴军
Owner EAST CHINA UNIV OF SCI & TECH
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