Coal Gasification Technology in China(en)

Coal gasification technology in China: Application and development

Fuchen Wang

Key Laboratory of Coal Gasification of Ministry of Education

Coal gasification technology

Application

Research & Development

IGCC in China

Coal gasification technology

2007 Output of coal in China is about 2.52 billion tons

1. Coal gasification technology

Coal gasification is the key and core technology

Entrained Bed

Fixed Bed Fluized BedTexaco Shell

Conoco

Phillips

Prenflo

Lurgi HTW

Entrained bed is the trend of coal gasification technology.

GSP

high temperature, high pressure, full mixing and high conversion rate

(95%～99%)

2000200026001150

TexacoShell

PrenfloOMB

Entrained flow

bed

High requirements for coals、low gasification

temperature 、low conversion rate of coal

840HTWKRW

Fluidized Bed

High requirements for coals、low gasification

temperature、difficulty in gas processing

500LurgiUGI

Fixed bed

FeaturesMax Size(t/d)

Representative patent supplier

Type

Large-scale equipment is a requisite for the development of related technologies

Around 25 units of 3,000t/d gasification facility are neededGasification takes 55%-60% of total investment

In-directliquefaction

Syn-gasCO+H2

GasificationCoal25 mil. t/y

Oil50 mil. t/y

Application

Ammonia industry is the biggest consumer of gasification technology in China. Coal-based synthetic ammonia accounts for about 75% of total output.

Ammonia output 51 Mt in 2007. Consume 55 Mt coal per year.

Most of them use anthracite lump coal and fixed bed gasifier, which is high energy consumption and high pollution.

Ammonia Industry

The methanol ouput in 2007 is 10.72 Mt/a, which will consume 12 Mt coal/a since coal-based methanol accounts for about 80% of total output.

Most is Fixed bed. It is estimated most will be the entrained bed in 3 years.

DME, MTO, MTP.

Methanol industry and downstream products

Fuel gas

Fuel gas consumes 50 Mt coal/a.

Most is Fixed bed.Coal liquefaction, IGCC power generation

Coal gasification technology is regarded as the key research field in “National plan in Sci & Tech development for

medium and long term”

Predicted the increased coal in 2020: 0.22~0.36 Bt coalProduction value of related industry: ~300 B yuan/a

Patent fee for introduce all tech: ~2 B U.S. dollor

Research & Development

Investigation on coal gasification technology in China start in early 1960’s

1966-1976 all study works were interruptedEarly 1980’s pilot gasifier( Texaco CWS entrained

gasifier) built up in Lintong Fertilizer Research Institute 1990’s pilot fluidized bed gasifier built up in

Institute of Coal Chemistry, Chinese Academy of Sciences 2001 commercial fluidized bed gasifier began to operate, capacity 200t coal/d

The research and development of gasification technology by East China University of Science and Technology in 20 years, and is demonstrated in Yankuang group 2005 .

1. ECUST Gasifier R&D History

Innovation & Pilot Plant22TPD

Industrial Demo.1150TPD750TPD

Scale up2000TPD.Integrated in Poly-gen., IGCC

1996~2000 2001~2005 2006~2010

Pilot plant

1) Coal slurry OMB gasifierTime: 2000Capacity: 22 t/dPressure: 1.0-4.0MPa

Capacityt /d

CO+H2%

OxyConsump.

Coal Consump. CarbonConver.

%PS.

~22 ~83 ~380 ~550 >98Coal mixtures,loading~61%

pilot plant ~15 80~81 ~410 ~600 ~95 Same to above

Scale Plant ~400 81.4 - - -same coal to above,loading 61.6~63.6%

Scale Plant ~400 ~83 ~410 ~590 ~95same coal to above,

loading ~65%

~500 ~80 ~410 ~640 ~95Shenfu coal, loading

~60%

~800 ~80 ~410 ~630 ~95Huating coal, loading

~62%Weihe Fertilizer Plant

Shanghai Coking Plant

LunanFertilizer

Plant

Gasifier

OMB gasifier (pilotplant)

32

32

Nm O1000Nm (CO+H ) 3

2

kg coal1000Nm (CO+H )

Pilot experiment results of CWS OMB gasifier

2) Pulverized coal OMB gasifierTime: 2004Capacity: 15-45 t/dPressure: 1.0-4.0MPa(In 2005, CO2 is used as the pumped

medium in the pilot plant.)

Gasifier feedstock (CO+H2)%

Carbonconver. %

Oxy.Consump.

Coal Consump.

Coal

Pulverizedcoal 89~93 98~99 300~320 530~540

Present coal used inLunan gasifier(Ash 9.14%)

CWS 83 >98 380 550Former coal used in

Lunan gasifier(Ash 7.67%)

Shell(Shell China Co.)

Pulverizedcoal 90 >99 340 590 Ash 18%

Texaco (LunanFertilizer Plant) CWS ~83

(Oct, 2004)~399

(Jun~Dec,2003)~644

(Jun~Dec,2003)

Present coal used inLunan gasifier(Ash 9.14%)

OMB gasifier (pilotplant)

32

32

Nm O1000Nm (CO+H ) 3

2

kg coal1000Nm (CO+H )

Pilot experiment results of Pulverized coal OMB gasifier

21• Hualu Hengshen

Chemical Co.Ltd.• 1 gasifier• 750 TPD• 6.5 MPa• Startup on Jun. 2005• Final Product: MeOH,

NH3

• Yankuang Cathay Coal Chemicals Co. Ltd.

• 3 gasifiers (2+1)• 1150 TPD• 4.0 MPa• Startup on July 2005• Final Product: MeOH, Power, HAc

3

• Yankuang Lunan FertilizerPlant

• 1 gasifiers • 1150 TPD• 4.0 MPa• Startup on July 2008• Final Product: MeOH, NH3

Industrial Applications

The first coal-based polygeneration plant in China

The first patent owned large-scale coal slurry gasifier in China

Broken GE, Shell, and Siemens’ monopoly in large-scale gasification technology, and become one of players in the world.

Technology features

(1) OMB CWS Gasification Process·OMB gasifier·Pre-film CWS Burner·Complex chilling chamber·Cross-flow chilling water distributor

(2)Grading purification of syngas

(3)Direct heat exchange in the treatment of slag water

50s authorized patents30s among them is related to

gasification

申请号 专利名称

ZL95111750.5 带有旋流器的三通道组合式水煤浆气化喷嘴

ZL98110616.1 多喷嘴对置式水煤浆或煤粉气化炉及其应用

ZL00111437.9 煤基两段组合式气化工艺及其装置

ZL01112701.5 碳氢化合物为原料煤气生产装置中的含渣废水热回收方法

ZL01112880.1 一种复合床高温煤气冷却洗涤设备及其工业应用

ZL01112700.7 以含碳氢化合物为原料气流床生产煤气的初步净化装置

ZL01112702.3 一种高温煤气冷却洗涤设备及其工业应用

ZL02111205.3 干煤粉加压气化过程中干煤粉的加料方法与装置

ZL02151143.8 带有内分布器的三喷口天然气部分氧化制合成气烧嘴

ZL03115227.9 三相气流床生产甲醇的方法和装置

ZL03115820.X 一种以合成气为原料循环气流床生产二甲醚的方法和装置

ZL02151238.8 多通道天然气部分氧化制合成气烧嘴

ZL01126381.4 高温气体脱氯剂及其制备方法

ZL02139941.7 煤灰型碱金属蒸汽吸附剂

ZL02139942.5 一种吸附碱金属蒸汽的吸附剂

ZL00119799.1 一种在三相淤浆床中合成二甲醚的方法

ZL02136724.8 一种在组合床中催化合成二甲醚的方法

ZL0310108386.X 能够调节控制和均匀分配煤粉流量的装置和操作方法

ZL94214422.8 双通道内旋组合式喷嘴 （共同专利权人）

ZL97235458.1 五通道负荷可控式水煤浆气化喷嘴

ZL01210097.8 顶部设有喷嘴的多喷嘴对置式水煤浆或煤粉气化炉

ZL01239008.9 以含碳氢化合物为原料气流床生产煤气的排渣装置

ZL01239007.0 气流床生产煤气装置中回收含渣废水热量的热水塔

ZL02216472.3 一种用于煤粉加压气化装置控制粉煤加入量的气密式加料器

ZL02266704.0 一种射流型洗涤冷却水均布器

ZL200320108896.2 设有定位块的洗涤冷却水均布器

ZL200420041534.0 气相介质气化喷嘴 （共同专利权人）

ZL200420041535.5 气液混合相气化喷嘴 （共同专利权人）

ZL200420041457.9 气化喷嘴的滑动密封装置 （共同设计人）

ZL200420114032.6 一种粉煤部分氧化制备合成气喷嘴

ZL200420114033.0 加压气化反应器

………………………………………

168 h Practical Assessment by Sino Petro Chem Association in Dec 12-19, 2005

High carbon conversion and low oxygen/coal consumption

because of proper flow pattern in the gasifier

Easy to scale up (like 2000-3000 ton coal/day) because of

multi-burner

High efficient of syngas primary purification section, low

process pressure lost and low flyash in syngas(1mg/Nm3

syngas) because of “Step-by-Step” concept

High heat recover efficiency and stability in slag water treat

section because of direct heat exchange between grey

water and vapor from high pressure flash of slag water

Features Features

Start up on Quarter 3rd , 2010MeOH, DME23002 (1+1)6.5Shandong Shengda Co., Ltd

Start up on Quarter 2nd , 2010MeOH15003 (2+1)6.5Anhui Huayi Chemicals Co., Ltd.

Start up on Quarter 1st, 2010MeoH, DME20006 (4+2)6.5Shandong Jiutai Co. Ltd.

Start up on Quarter 4th, 2009IGCC220014.0Hangzhou Banshan Power Plant

Start up on Quarter 1st , 2010

MeOH、CO、H2

12003 (2+1)6.5Ningbo Wanhua Co.Ltd.

Start up on Quarter 3rd , 2009

MeOH20003 (2+1)4.0Shenhuang Ningxia Coal Group

Start up on Mar. 2009MeOH15003 (2+1)6.5Jiangsu Sopo Group

Start up on Jan. 2009NH318002 (1+1)4.0Jiangsu Linggu Chemicals Co.,Ltd.

Start up on Nov. 2008 MeOH, NH315003 (2+1)6.5Fenghuang Fertilizer Plant

Start up on July. 2008MeOH115014.0Yankuang Lunan Fertilizer Plant

Started up on Oct. 2005MeOH, Power11503 (2+1)4.0Yankuang Cathay Coal

Chemicals Co., Ltd.

Started up on Dec. 2004MeOH, NH375016.5Hualu Hengsheng Chemicals Co., Ltd.

RemarksFinal Product

Capacity

(TPD)

Num. of Units

(Operating + Spare)

Pressure

(MPa)Plant

OMB gasification technology aroused the focus of international gasification field, ICCT was invited to give a report in the 2006 gasification conference.

Up left： James Childress, Chairman

of Gasification Organization

Up right：Expert of ICCT, ECUST

Down： Dr. Higman, the author of

“Gasification”

Aroused the focus and appraisal of international gasification field

Christopher Christopher HigmanHigman gave a positive appraisal on the gave a positive appraisal on the technology in his review report technology in his review report ““Turning promise Turning promise into realityinto reality”” in in Modern Power SystemModern Power System..

Pressure：0.03 MPaGasifier Dia.：2.4 mCapacity：100 t/dSyngas output：

～9000 Nm3/hCO+H2 con.:68~72%

Shan Xi Institute of Coal Chemistry, Chinese Academy of Sciences : Ash Agglomerating Fluidized Bed Coal Gasification Technology

2.Other gasification technologies in China

Pilot plant: 36 t/dPressure: 2~3MPaTem:1300~1400℃

Xi＇an Thermal Power Research Institute: Pilot plant of two-stage dry feed entrained flow gasifier

National “Tenth five” 863 program

IGCC in China

1995 begun to discuss first IGCC power plant

1999 Yantai IGCC power plant project

authorized, capacity 300MW

2006 Small IGCC (80MW) plant start operation in Shandong Yankuang Group.

Fuel Gas from OMB gasifier.

2000 TPD CWS gasification technology2000 TPD Pulverized coal gasification technologyYankuang Group 1Mt/year F-T plant 200MW IGCC plantLuan Group 1Mt/year F-T plant 200MW IGCC plantHuaneng Group(Tianjin city) 250MW IGCC plantHuadian Group(Hanzhou city) 200MW IGCC plant

Coal-based Poly-generation National Hi-tech Research and Development Program (863 Program)

Coal gasification is the core technology in the clean and high-efficient utilization of coal.

Coal gasification technology is of significance to the sustainable development of energy and the resolution of environment problem in China.

The fast development of society and economy in China present a precious opportunity and a large market for coal gasification technology. It is predicted more other gasification technology would be applied in China in the future 10 years.

Conclusion

Thank You!