WO2007124681A1 - Suspension d'eau de coke de désulfuration et son procédé de préparation - Google Patents

Suspension d'eau de coke de désulfuration et son procédé de préparation Download PDF

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Publication number
WO2007124681A1
WO2007124681A1 PCT/CN2007/001318 CN2007001318W WO2007124681A1 WO 2007124681 A1 WO2007124681 A1 WO 2007124681A1 CN 2007001318 W CN2007001318 W CN 2007001318W WO 2007124681 A1 WO2007124681 A1 WO 2007124681A1
Authority
WO
WIPO (PCT)
Prior art keywords
coke
water
slurry
petroleum coke
petroleum
Prior art date
Application number
PCT/CN2007/001318
Other languages
English (en)
Chinese (zh)
Inventor
Houchun Chang
Zuqin Li
Ge Ma
Shengbin Geng
Xianjun Li
Dianming Zhang
Original Assignee
Guangzhou Devotion Thermal Technology Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Devotion Thermal Technology Co., Ltd. filed Critical Guangzhou Devotion Thermal Technology Co., Ltd.
Publication of WO2007124681A1 publication Critical patent/WO2007124681A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
    • C10L1/326—Coal-water suspensions

Definitions

  • the international search is based on - the language used in the application.
  • the present invention relates to a water coke for a combustion system and a process for the preparation thereof, and more particularly to a desulfurized water coke which can reduce the release of sulfur dioxide after combustion and a preparation process thereof.
  • the water coke slurry is a liquid fuel prepared by a specific process by adding petroleum and coke as a by-product of petroleum refining. It can be used as an alternative fuel for fuel oil and/or gas fueled thermal energy equipment.
  • every 1.18 p ⁇ petroleum coke can replace 1 ton of crude oil, so the promotion of the application of water coke can save the shortage of petroleum resources. Rational use of resources.
  • Industrial tests have shown that the cost of steam produced by oil-fired boilers is 152.75 yuan / ton of steam (crude oil price is 2350 yuan / ton), while the cost of steam-burning petroleum coke production steam is 96.
  • the petroleum coke component is a hydrocarbon, which can be classified into a needle coke, a sponge coke, a projectile coke, and a powder coke in terms of structure and appearance.
  • the moisture accounts for about 3%, and the ash content is about 1.12. %,
  • the calorific value is about 30. 35 MJ / kg, the volatile matter is about 11. 03%, and the Haugh Grindability Index (HGI) is 80.
  • Water coke is prepared by mixing petroleum coke with water and adding appropriate additives.
  • Chinese patent application CN200410014722. 9 discloses a composite inorganic nano-coal slurry I water coke slurry stabilizer, which is composed of fibrous inorganic nanoparticles and spherical inorganic nanoparticles, and has a particle size of 10-100 nm.
  • the aspect ratio of the fibrous inorganic nanoparticles is
  • the mass percentage of fibrous inorganic nanoparticles and spherical inorganic nanoparticles is 10: 90-90: 10.
  • the water coke slurry stabilizer utilizes the unique surface properties of the nanoparticles to compound the spherical and fibrous nanoparticles, and synergistically exerts various stabilizing effects, which can obviously improve the stability of the water coal/coke slurry.
  • Chinese patent CN99107794.6 discloses a petroleum coke slurry composition modified with low rank coal, the slurry composition comprising: (1) petroleum coke powder; (2) low grade coal powder, the average particle size of 36- 45 ⁇ , the amount is 10-100% of the weight of petroleum coke powder; (4) water, the amount of which is 40-60% of the total weight of petroleum coke powder plus low-grade coal powder; (4) additive, the additive is selected from an anion Type of surfactant, including: sulfonate, selected from sodium dodecyl benzoquinone S or sodium polystyrene sulfonate, or phosphate ester, selected from C12-18 alkyl monoester or phosphoric acid C12 — 18 alkyl diester; or a nonionic surfactant such as ethylene oxide and propylene oxide copolymer; or a mixture of two or three of the above various additives, the amount of the additive is 2-10 grams of dry solids per kilogram of solids.
  • Chinese patent CN00113911.8 discloses a gasification slurry composed of coal, petroleum coke, additive and water, which is prepared by simultaneously adding coal, petroleum coke, water and additives to a grinding device to prepare a slurry, that is, using a wet grinding process.
  • the pulping process, the particle size of the coal used for preparing the slurry is less than 0.9 mm, 30-80% is less than 0.76, the particle size of the petroleum coke is less than 0.6 mm, and 50-90% is less than 0. G76mtn.
  • the preparation method can directly produce coke coal gasification slurry on the existing coal water slurry preparation device, and can be applied to preparation of raw material gas such as synthetic ammonia and synthetic methanol.
  • Another object of the present invention is to provide a process for preparing the above water coke slurry.
  • the invention 4 provides a desulfurized water coke composition
  • a desulfurized water coke composition comprising petroleum coke, water and an additive, in terms of mass percentage, the water coke In the composition, the petroleum coke accounts for 55-75%, the water accounts for 24-44%, and the additive accounts for 0.1-2%.
  • the additive in the water coke slurry composition of the present invention further comprises a dispersant for reducing the viscosity of the slurry of the water coke composition, a stabilizer for preventing hard precipitation of the water coke composition, and a desulfurizing agent for reducing sulfur dioxide emissions after combustion.
  • the dispersing agent may be one or more anionic surfactants, for example: fatty acid oxime ester (taken from oil soap), sodium alkylbenzene sulfonate, alkyl benzene 4 sulfonic acid, sodium dioctyl sulfosuccinate, sodium N-acylmethyltaurate, sodium sulfonated diisooctyl succinate, : ⁇ -2 emulsifier, high-efficiency dispersant FN, twelve Sodium sulphate, sodium polyoxyethylene sulfate (AES), sodium sulphate polyoxyethylene ether, polyoxyethylene ether phosphate (anionic surfactant), phosphate, tris(2-ethylhexanol) phosphate Wait.
  • anionic surfactants for example: fatty acid oxime ester (taken from oil soap), sodium alkylbenzene sulfonate, alkyl benzene 4 sulfonic acid, sodium dio
  • the main function of the dispersing agent is to lower the viscosity of the water coke slurry to give it a desired fluid type.
  • the stabilizer may be one or more inorganic salts of a cationic salt such as potassium nitrate or phosphate.
  • Preferred stabilizers are ferrous sulfate and/or sodium tripolyphosphate.
  • the main function of the stabilizer is to compress the electric double layer, reduce the electrostatic repulsive force, and promote the coalescence of the coke particles stably suspended in the water without hard precipitation.
  • the degreasing agent may be anhydrous calcium chloride or other desulfurizing agents such as activated carbon, zinc oxide, iron oxide or the like.
  • a preferred desulfurizing agent is anhydrous calcium chloride.
  • the main function of the desulfurizing agent is to reduce sulfur dioxide in the flue gas emitted after combustion, and to reduce pollution to the atmosphere.
  • water coke slurry composition of the present invention by mass percentage, petroleum coke Preferably, it is 60-70%, water is preferably 29-39%, and the additive is preferably Q. 2-1%.
  • the dispersant is preferably 0 in terms of mass percentage. 05-0. % ⁇ The sulphurizing agent is preferably 0. 05-0. %.
  • the water coke composition of the present invention may further comprise other components such as pulverized coal or other combustibles.
  • the additive of the water coke slurry of the present invention may further include other types of additives such as a combustion improver.
  • the present invention provides a process for preparing the above water coke slurry composition, the method comprising:
  • step (1) can be carried out in two or more steps. If it is carried out in two steps, the first step is to pulverize the block petroleum coke into larger particles of petroleum coke powder, and the second step is to further pulverize the larger particle petroleum coke powder into smaller particles of petroleum coke breeze.
  • the water coke slurry composition of the present invention has better fluidity and stability due to the inclusion of a dispersant and a stabilizer; the water coke slurry composition of the present invention can be reduced by containing a desulfurizing agent.
  • the oxidation in the flue gas emitted after combustion reduces the pollution of the atmosphere.
  • Fig. 1 is a schematic view showing the process flow for preparing a water coke slurry composition of the present invention. detailed description
  • the qualified water coke slurry is pumped into a storage tank equipped with a stirrer or into a daily slurry tank equipped with a stirrer through an in-line filter into the combustion system under agitation.
  • the quality index of the prepared water coke is tested, and the quality indicators are as follows: Concentration: 66 ⁇ 1% (by mass);
  • Viscosity 300 - 800mPa. s;
  • Fineness Particles with a particle size greater than 74 ⁇ ⁇ are not more than 10°/»;

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Liquid Carbonaceous Fuels (AREA)

Abstract

La présente invention concerne une suspension d'eau de coke de désulfuration et son procédé de préparation, la suspension comportant 55-75% de coke de pétrole, 24-44% d'eau et 0,1-2% d'additifs, lesdits additifs comprenant un dispersant pour réduire la viscosité de la suspension, un stabilisateur pour empêcher la sédimentation de la suspension et un agent de désulfuration pour réduire l'émission de SO2 lors de la combustion. La suspension présente une bonne fluidité et une bonne stabilité, une teneur en fumée de SO2 réduite lors de la combustion.
PCT/CN2007/001318 2006-04-24 2007-04-23 Suspension d'eau de coke de désulfuration et son procédé de préparation WO2007124681A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610035143.1 2006-04-24
CNB2006100351431A CN100556996C (zh) 2006-04-24 2006-04-24 脱硫水焦浆配方及其制备工艺

Publications (1)

Publication Number Publication Date
WO2007124681A1 true WO2007124681A1 (fr) 2007-11-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/001318 WO2007124681A1 (fr) 2006-04-24 2007-04-23 Suspension d'eau de coke de désulfuration et son procédé de préparation

Country Status (3)

Country Link
CN (1) CN100556996C (fr)
MY (1) MY157996A (fr)
WO (1) WO2007124681A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114540088A (zh) * 2022-01-06 2022-05-27 浙江石油化工有限公司 一种生产高硫石油焦浆添加剂的方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101225335B (zh) * 2008-01-27 2011-06-22 中国石油化工集团公司 气化用水焦浆制备方法
CN102268306A (zh) * 2010-06-02 2011-12-07 深圳市赛尔勒环保科技有限公司 一种生物质燃料及加工该种生物质燃料的工艺流程
CN102766494B (zh) * 2012-08-09 2016-05-25 泰安市良达新能源有限责任公司 酿酒废水制备水煤浆的工艺
CN104946325B (zh) * 2015-06-15 2016-08-17 中国寰球工程公司辽宁分公司 一种污泥废水焦浆及其制备方法
CN106635207A (zh) * 2017-01-16 2017-05-10 河北商源科技有限公司 兰炭液及其生产工艺
CN109897704B (zh) * 2017-12-11 2021-03-09 神华集团有限责任公司 水煤浆添加剂及其组合物和水煤浆的制备方法
CN113336216A (zh) * 2021-06-29 2021-09-03 上海臻衍生物科技有限公司 一种石油焦煅烧炉内催化脱硫的方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59100191A (ja) * 1982-11-30 1984-06-09 Ube Ind Ltd 固体燃料−水スラリの製法
JPS6088092A (ja) * 1983-10-20 1985-05-17 Ube Ind Ltd 固体燃料−水スラリの製法
CN1021343C (zh) * 1986-12-26 1993-06-23 宇部兴产株式会社 固体燃料-水浆液组合物及其制备方法
CN1197836A (zh) * 1997-04-09 1998-11-04 中国石油化工总公司 一种制备碳素固体水浆液体燃料的方法
CN1138847C (zh) * 1999-12-06 2004-02-18 化学工业部西北化工研究院 一种腐植酸系水煤浆添加剂的制备方法
CN1482218A (zh) * 2003-04-18 2004-03-17 朱复东 固态水煤浆

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59100191A (ja) * 1982-11-30 1984-06-09 Ube Ind Ltd 固体燃料−水スラリの製法
JPS6088092A (ja) * 1983-10-20 1985-05-17 Ube Ind Ltd 固体燃料−水スラリの製法
CN1021343C (zh) * 1986-12-26 1993-06-23 宇部兴产株式会社 固体燃料-水浆液组合物及其制备方法
CN1197836A (zh) * 1997-04-09 1998-11-04 中国石油化工总公司 一种制备碳素固体水浆液体燃料的方法
CN1138847C (zh) * 1999-12-06 2004-02-18 化学工业部西北化工研究院 一种腐植酸系水煤浆添加剂的制备方法
CN1482218A (zh) * 2003-04-18 2004-03-17 朱复东 固态水煤浆

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114540088A (zh) * 2022-01-06 2022-05-27 浙江石油化工有限公司 一种生产高硫石油焦浆添加剂的方法

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CN101029259A (zh) 2007-09-05
MY157996A (en) 2016-08-30
CN100556996C (zh) 2009-11-04

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