Oil-containing sludge coal slurry and preparation method thereof

A technology for oily sludge and sludge, applied in the field of oily sludge coal slurry and its preparation, can solve the problems of low carbon conversion rate, strict requirements for dispersants, low slurry concentration, etc., and achieves high carbon conversion rate and fluidity. Good, easy-to-use effects

Active Publication Date: 2014-08-13
EAST CHINA UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a brand-new oily sludge coal slurry and its preparation method

Method used

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  • Oil-containing sludge coal slurry and preparation method thereof
  • Oil-containing sludge coal slurry and preparation method thereof
  • Oil-containing sludge coal slurry and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Raw materials

[0020] Meaning of symbols: moisture (M), ash (A), volatile matter (V) and fixed carbon (FC). Calorific value (Q d ). Meanings of subscript symbols: received basis (ar): the state of the sample is the state in which the batch of samples was received; dry basis (d): the state in which the sample is in the state of no moisture.

[0021] (1) The coal used in this embodiment is Shenfu coal, and the specific components are shown in the table below.

[0022]

[0023] (2) Dispersant: sodium naphthalenesulfonate

[0024] (3) Oily sludge: It was taken from Shanghai Gaoqiao Petrochemical Sewage Treatment Plant. The specific components of the original sample and the dried sample are shown in the table below.

[0025]

[0026] (4) water

[0027] 2. Preparation conditions

[0028] (1) Raw material ratio, weight fraction.

[0029] coal

57wt%

oily sludge

14.3wt%

water

28wt%

Dispersant

0.7wt%

[0030...

Embodiment 2

[0039] 1. Raw materials

[0040] (1) The coal used in this embodiment is Shenfu coal, and the specific components are shown in the table below. Meaning of symbols: moisture (M), ash (A), volatile matter (V) and fixed carbon (FC). Calorific value (Q d ). Meanings of subscript symbols: received basis (ar): the state of the sample is the state in which the batch of samples was received; dry basis (d): the state in which the sample is in the state of no moisture.

[0041]

[0042] (2) Dispersant: sodium lignosulfonate

[0043] (3) Oily sludge: It was taken from Shanghai Gaoqiao Petrochemical Sewage Treatment Plant. The specific components of the original sample and the dried sample are shown in the table below.

[0044]

[0045] (4) water

[0046] 2. Preparation conditions

[0047] (1) Raw material ratio, weight fraction.

[0048] coal

62wt%

oily sludge

3wt%

water

34.8wt%

Dispersant

0.2wt%

[0049] (2) Preparatio...

Embodiment 3

[0058]This example is basically the same as Example 1, the difference is that the dispersant uses sodium methylnaphthalenesulfonate formaldehyde condensate, the final product has good flow, high slurry concentration, good stability, and replaces coal water slurry for patent application number The synthesis gas is prepared for the multi-nozzle opposed coal-water slurry gasifier described in 98110616.1. The effective gas components (carbon monoxide and hydrogen) can reach more than 80%, and the carbon conversion rate is more than 98%.

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Abstract

The invention discloses oil-containing sludge coal slurry and a preparation method thereof. The oil-containing sludge coal slurry comprises the following components in percentage by mass: 57-62% of coal powder, 3-14.3% of oil-containing sludge, 0.2-0.7% of a dispersing agent and water, totaling 100%. The method comprises the following steps: uniformly mixing the oil-containing sludge and the coal powder to obtain a mixture A; and uniformly mixing the mixture A, the water and the dispersing agent to obtain the oil-containing sludge coal slurry. The oil-containing sludge coal slurry disclosed by the invention is easily available in raw material, good in fluidity, high in slurry concentration, and quite high in conversion rate when being applied to combustion and gasification.

Description

technical field [0001] An oily sludge coal slurry and a preparation method thereof. Background technique [0002] The sources of oily sludge mainly include: crude oil extraction and transportation, oil refineries, metal industry, shipbuilding and ship repair industry, food processing and catering industry, etc. Oily sludge is toxic and flammable industrial waste, which has been included in the "National List of Hazardous Wastes". Alkanes, cycloalkanes, aromatic hydrocarbons, colloids, asphaltene and paraffin contained in oily sludge seriously affect human health, especially aromatic hydrocarbons are highly toxic to human body and have carcinogenic effects. According to incomplete statistics, the amount of oily sludge produced at the end of my country's "Tenth Five-Year Plan" is about hundreds of thousands of tons per year, and it has become an increasing trend year by year. "National Waste Environmental Pollution Prevention Law" and "National Cleaner Production Law" require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32C10L1/24C10L1/192
Inventor 刘海峰赵辉李伟锋龚欣王辅臣于广锁王亦飞徐梦涵许建良李伟东梁钦锋周志杰代正华陈雪莉郭晓镭王兴军郭庆华刘霞陆海峰李超龚岩王立
Owner EAST CHINA UNIV OF SCI & TECH
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