Embed Size (px)
Citation preview
exquisite
efficient
Professional
EPC CONTRACTOR
POLYTEX ®
POLYTEX ENGINEERING GROUP
A POLYTEX GROUP
WWW.POLYTEX.CC
CONTENTS
Coal chemical industry chainPART 01
PART 02 Supports
PART 03 Company profile
www.polytex.cc
Coal chemical industry chainPolytex offers a variety of proprietary and proprietary technologies
Coal resources in India
Coal chemical industry chainCoal resources in India
www.polytex.cc
India is the 3rd largest coal producer in the world. India is rich in coal resources and has proven reserves of 60.6 billion tons,
accounting for 6.8 percent of the world's total coal resources. Among them, anthracite and bituminous coal were 56.1
billion tons, and sub-bituminous coal and lignite were 4.5 billion tons. Similar to China, India is also a country rich in coal but
poor in oil, so the development of coal chemical industry is an inevitable trend.
Coal chemical industry chainCoal resources in India
Indian coal production structure by quality
Compared with China, Indonesia, Australia, South Africa and other traditional coal
countries, India's coal quality generally has the defects of high ash content (generally
higher than 30%), low calorific value, mainly non coking coal. The domestic coal is divided
into 7 grades from A to G according to the calorific value, and the coal with high calorific
value less than 4800 calories is more than 70%.
Grade Percent Ggr(Kcal) Qnet(Kcal) Ash content(%)
A 1% >6454 >6200 <19.5
B 7% 6049-6454 5600-6200 19.6-23.8
C 10% 5597-6049 4940-5600 23.9-28.6
D 8% 5089-5597 4200-4940 28.7-34.0
E 28% 4324-5089 3360-4200 34.1-40.0
F 46% 3865-4324 2400-3360 40.1-47.0
G - 3113-3865 1300-2400 47.1-55.0
www.polytex.cc
Coal chemical industry chainCoal resources in India
At present, there are dozens of mainstream coal gasification technologies, which can be
divided into the following categories: pulverized coal fluidized bed gasification technology
represented by high temperature Winkler and KBR circulating fluidized bed gasification
technology (riser gasifier); entrained flow gasification technology represented by GSP, Shell
and Texaco; fixed bed pressurized gasification technology represented by Lurgi and BGL
slag gasification technology. Restricted by economy condition, most coal gasification
technologies require raw coal content ≤ 25%. At present, Shell, HT-L and other widely used
coal gasification technologies have good adaptability (8% - 35%) to high ash coal types.
www.polytex.cc
Coal chemical industry chainCoal resources in India
With high content of coal ash, there is less effective gas composition after gasification. When
coal of the same quality is sent to the gasifier, the coal with high ash content has less gas
production, large amount of ash and high energy consumption.
It is suggested use high ash coal by means of coal cleaning technology and coal blending. If
from coal gasification technology, its economy should be considered.
www.polytex.cc
Coal-to-Methanol
Coal chemical industry chainCoal-to-Methanol
In the production process, gasification and synthesis are two decisive processes. The
gasification synthesis process mainly includes ICI low-pressure methanol synthesis process,
Lurgi low-pressure methanol synthesis process, TEC's new reactor and the liquid-phase
methanol synthesis process which is tending to mature. Air separation, transformation,
purification, compression, hydrogen recovery and distillation are common processes.
Air separation
Gasify Transfer Purify Compress Synthesis Rectification
H2 recoveryAir
O2
Coal
CO2 H2S
Methanol
www.polytex.cc
Ethylene glycol
Coal chemical industry chainEthylene glycol
The raw gas produced by gasifier is used as raw material for the production of EG. The raw
gas is divided into two parts. One part of the raw gas is sent to the low-temperature
methanol washing desulfurization and decarbonization after residual heat recovery, and
then to the co cryogenic separation cold box. The extracted co product is compressed and
sent to the glycol unit to synthesize the intermediate product dimethyl oxalate; the other
part of the raw gas is sent to the low-temperature methanol washing desulfurization after
deep transformation. Decarburization, the purified gas from methanol washing is sent to
PSA Hydrogen production process to produce high-purity H2, which is then sent to glycol
unit and purified dimethyl oxalate to synthesize crude EG, and the crude EG is separated
and refined to get EG product.
www.polytex.cc
Coal chemical industry chainEthylene glycol
www.polytex.cc
Catalyst for oxalate synthesis
EG
Hydrogenation catalyst
Dehydrogenation catalyst
Gasify
Coal
CO
H2
CO
Air
NOx
Methanol, O2
Methyl nitrite
Oxidation esterification
NO
Catalyst
Synthesisgas
Liquid ammonia
Oxalate
BDO
Coal chemical industry chainBDO
Reppe method, also called alkynaldehyde method or acetylene method, is a traditional BDO
production method, and also one of the main production processes of BDO at present. The
technology is relatively mature, the process is short.
www.polytex.cc
MethanalCatalytic
hydrogenation
2-butyne-1,4-diol
BDO
Acetylene
Iron-molybdenum catalyst
MethanolAir
Copper-Bismuth catalyst
Coal chemical industry chainBDO
Acetylene and formaldehyde were oxidized by methanol to form butynediol
(35% BYD aqueous solution) under the action of catalyst. Under the action of
nickel metal catalyst, 1,4-butanediol (BDO) was synthesized by hydrogenation
of butynediol with hydrogen from PSA hydrogenation unit. The crude BDO was
removed from water, light components and heavy components to obtain fine
1,4-butanediol.
www.polytex.cc
DMDS
Coal chemical industry chainDMDS
The tail gas of coal chemical industry contains many kinds of sulfur compounds,
the most common are sulfur and hydrogen sulfide. If it is used as raw material to
produce fine chemical products, it will bring huge economic benefits.
S
H
H
S
www.polytex.cc
Coal chemical industry chainDMDS
Methanethiol sulfurization is also completed by two steps. First, methanol and hydrogen
sulfide are used to synthesize methanethiol, and then methanethiol reacts with elemental
sulfur under catalyst conditions to generate crude dimethyl disulfide and hydrogen sulfide.
Hydrogen sulfide is pressurized to the front end to be the raw material of methanethiol,
and then the crude dimethyl disulfide is rectified to obtain the finished product dimethyl
disulfide. The reaction conditions are mild, the equipment material requirements are low,
the production process has the characteristics of "three wastes" emissions less, the
production cost is low.
www.polytex.cc
Problem analysis and solution
Coal chemical industry chainProblem analysis and solution
Multiple patent technology
combinations, low energy
efficiency
The resource utilization rate of
different devices is low,
resulting in unnecessary waste.
Plant emissions contain
available resources
Low energy efficiency between
different devices
The heating and cooling process of the
plant mostly use the 1st phase energy
such as primary steam, circulating cooling
water and air cooler. there is no 2nd phase
energy collection and utilization.
The energy-saving measures of
the plant are usually partial, not
comprehensive and systematic.
www.polytex.cc
Coal chemical industry chain
An effective way to improve economic benefits
1.Give full play to the advantages of coal
chemical industry chain and improve the utilization
rate of resources;
2. In the design stage, overall planning, efficient
use of energy, improve economic efficiency;
3. Promote the energy-saving technological
modification of old plant;
4. Research and develop better catalyst, effectively reduce production cost.
Problem analysis and solution
www.polytex.cc
Coal chemical industry chainCoal/Nature gas Chemical Industry
www.polytex.cc
SupportPolytex serves well-known enterprises domestic and overseas, providing EPC services for petrochemical industry, coal chemical industry, chemical fiber, engineering plastics industry.
Optimization and
modification
Technology licensing
EPC
Make full use of
resources
Support
Technical supportEngineering design
Energy Performance
Contracting
Significant economic
benefits
www.polytex.cc
Support
MeOH(Methanol): 300-5000TPD
BDO (1,4-Butanediol ): 100-240 TPD
EG: 600-1000TPD
PBT: 30-500 TPD
LNG: 600-2400TPD
DMDS:33TPD
www.polytex.cc
Company overviewPOLYTEX is a professional engineering company, which is designers , manufacturers and contractors of turn-key polymerization & fiber lines & Coal/Nature gas chemical industry.
Company profilePolytex Group
POLYTEX is a professional engineering company, which is designers , manufacturers
and contractors of turn-key polymerization & Coal/Nature gas chemical industry.
Specialized in the engineering design of polymerization, know-how transfer and general
engineering contract of PET, PBT, PA 6, PA 66, PLA, PBS, PETG, PTT, BDO, MeOH,
PDO Etc.
Polytex is a Engineering Group company in chemical & fiber relative field, Acme &
Chindustry are both subsidiaries polytex .
www.polytex.cc
Project reference
Typical project reference
Over the years, POLYTEX achieved nearly 300 projects, many of which have broken through foreign technical barriers and achieved many first or largest in this industry.
COAL TO METHANOL - XINJIANG GUANGHUI NEW ENERGY GROUP
HP(H2O2) - JUFENG
PTA - SHISHI JIALONG
MEG - YANGMEI SHENZHOU
MEG - XINJIANG GUANGHUI
PBT – HENAN KAIXIANG / NINGBO MEIYUAN
SULFUR CHEMICAL - XINJIANG LIUHUAGONG
MEG - R&D OF WHB
www.polytex.cc
Projects show
200,000 Tons/year Methanol plant 1,200,000 tons/year Technical
modification of coal to methanol plant
100,000 tons/year BDO plant
400TPD PBT plant 10,000 tons/year DMDS plant100,000 tons/year HP plant
Thanks. Professional, Sophisticated
and Efficient.
Contact:
POLYTEX ENGINEERING GROUP
Corp: No.20 Wenchang Mid Rd, Yangzhou
City, Jiangsu, China 225000
Head: No.1, Private Industrial Park, Yuetang,
Yizheng, Jiangsu, China 211400
Tel: +86-514-85553618;
+86-514-87859276
Fax: +86-514-87857559
Email: [email protected];
Website：www.polytex.cc
The propagation of coal based chemical activity of Polytex Engineering group is being propagated in India y:Instech India,D-79, Sushant Lok – II, Sector 56, Gurugram 122011, IndiaMo. No: +919811380135
