Oil and gas field oil sludge anaerobic cracking product carbonaceous carbon-based fertilizer and preparation method thereof

A technology for pyrolysis products and sludge, which is applied in the direction of inorganic fertilizers, calcium fertilizers, nitrogen fertilizers, etc., can solve the problem of not being able to make good use of carbon in oil and gas field sludge pyrolysis solid products, and achieve scientific design, large specific surface area, and reduced Effects of diseases and pests

Inactive Publication Date: 2018-12-28
CHENGDU EN SHAIN TECH INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem solved by the present invention is to provide a carbonaceous carbon-based fertilizer produced by anaerobic cracking of oil and gas f

Method used

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  • Oil and gas field oil sludge anaerobic cracking product carbonaceous carbon-based fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] A preparation method of carbonaceous carbon-based fertilizer from the anaerobic cracking product of sludge in oil and gas fields includes the following steps:

[0043] Step 1. Preparation of Sodium Alginate Glue: After adding water to sodium alginate to make a sodium alginate solution, add some fertilizers and some fertilizer additives, and mix well to obtain sodium alginate glue;

[0044] Step 2. Preparation of the first mixed glue solution: After the carbonaceous product of the pyrolysis product of oil and gas field sludge and lignin is uniformly mixed, it is evenly mixed with the sodium alginate glue solution to obtain the first mixed glue solution;

[0045] Step 3. Prepare a second mixed glue solution: add calcium chloride with water to make a calcium chloride solution, and then add the remaining amount of fertilizer and the remaining amount of fertilizer additives to mix to obtain a second mixed glue solution;

[0046] Step 4. Cross-linking reaction: adding the first mixed ...

Example Embodiment

[0050] Example 1

[0051] This example provides the preparation of the carbon-based fertilizer of the present invention.

[0052] The raw materials are composed of the following parts by weight: 60 parts of carbon (carbon content 20% by weight) cracked product of oil and gas field sludge, 20 parts of lignin, 5 parts of sodium alginate, 10 parts of urea, 1 part of polyglutamic acid, chlorine 4 parts of calcium.

[0053] The preparation method is:

[0054] Step 1. Preparation of sodium alginate glue: add sodium alginate to water to make a sodium alginate solution with a mass concentration of 0.5-%, then add part of urea and part of polyglutamic acid, and mix well to obtain a sodium alginate glue; Wherein, the amount of added urea is 10wt% of the total amount of urea, and the added polyglutamic acid is 1wt% of the total amount of polyglutamic acid;

[0055] Step 2. Preparation of the first mixed glue solution: After the carbonaceous and lignin pyrolysis products of oil and gas field slud...

Example Embodiment

[0058] Example 2

[0059] This example provides the preparation of the carbon-based fertilizer of the present invention.

[0060] The raw material is composed of the following parts by weight: 60 parts of carbon (carbon content 60% by weight) cracked product of oil and gas field sludge, 20 parts of lignin, 5 parts of sodium alginate, 10 parts of potassium chloride, and 1 part of polyaspartic acid Parts, 4 parts of calcium chloride.

[0061] The preparation method is:

[0062] Step 1. Preparation of sodium alginate glue: add water to sodium alginate to make a sodium alginate solution with a mass concentration of 20%, then add part of urea and part of polyglutamic acid, and mix well to obtain a sodium alginate glue; where , The amount of urea added is 5wt% of the total urea, and the polyglutamic acid added is 5wt% of the total polyglutamic acid;

[0063] Step 2. Preparation of the first mixed glue solution: After the carbonaceous and lignin pyrolysis products of oil and gas field sludge...

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Abstract

The invention discloses an oil and gas field oil sludge anaerobic cracking product carbonaceous carbon-based fertilizer and a preparation method thereof, and solves the problem that the solid productcarbon after pyrolysis treatment of oil and gas field oil sludge is not well utilized in the prior art. The oil and gas field oil sludge anaerobic cracking product carbonaceous carbon-based fertilizeris prepared from the following raw materials in parts by weight: 40-70 parts of oil and gas field oil sludge cracking product carbon, 10-40 parts of lignin, 3-10 parts of sodium alginate, 5-10 partsof fertilizer, 1-5 parts of fertilizer additive, and 1-10 parts of calcium chloride. The design is scientific, the method is simple, the solid product carbon after pyrolysis treatment of oil and gas field oil sludge is well utilized, and the dilemma of resource application of the oil and gas field oil sludge is effectively solved.

Description

technical field [0001] The invention belongs to the field of oil and gas field waste recycling and environmental protection. Specifically, the invention relates to a carbonaceous carbon-based fertilizer produced by anaerobic cracking of oil and gas field sludge and a preparation method thereof. Background technique [0002] my country's oil and gas fields produce more than 6 million cubic meters of oily sludge every year. The main oily pollutants come from waste drilling fluid, fracturing flowback fluid, oil gathering and transportation and refining tank bottom sludge, and pit bottom sludge at oil and gas field development sites. Before 2017, most of the treatment methods were landfill, incineration, simple sludge separation and chemical cleaning. Although these technologies are simple, the pollutants have not been completely treated up to the standard, and they are still serious environmental hazards. [0003] With the increasing requirements for environmental protection, r...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/02C05G3/04C05G3/60C05G3/80
CPCC05C9/00C05C11/00C05G3/00C05G3/60C05G3/80C05D3/00C05D9/00C05F11/00C05D1/02C05D9/02
Inventor 罗向东吴华郭明遗陈西亮贾巧冯海波杨加平江明
Owner CHENGDU EN SHAIN TECH INC
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