BUSINESS
Business Field
NEWS
热门新闻
- 12.0kt/a two methyl two sulfur production unit of Xinjiang Xingfa chemical compa
- Shanxi Sunshine Group 600 thousand tons / year coke oven flue gas single alkali
- Guizhou Xingfa company 25 thousand tons / year two dimethyl sulfoxide synthesis
- Shandong Haike group of 15 thousand tons of sulfur flue gas treatment project de
- Eliminate backward production capacity award!
(1) environmental protection equipment
Flue gas and flue gas desulfurization unit Flue gas and industrial waste gas desulfurization Unit
Containing SO2 waste gas: flue gas, sulfur tail gas, sulfuric acid tail gas, kiln exhaust gas and so on
The concentration of SO2 in flue gas or waste gas purification fand: less than 50mg/Nm
The main desulfurization processes are sodium alkali solution absorption process and organic solvent absorption process
Typical case:
(1) strontium carbonate production of high temperature kiln flue gas sodium alkali desulfurization device Chongqing Qinglong strontium salt Co. Ltd.
The device for processing sulfur-containing flue gas to produce strontium carbonate production process of high temperature kiln flue gas, sulfur gas and carbide Claus tank discharge collection consisting of waste gas containing hydrogen sulfide sulfur dust, dust flow about 35000Nm /h 30~36g/Nm fand, 760~1300mg/Nm, sulfur dioxide, hydrogen sulfide fand fand fand 15000~20000mg/Nm. The cyclone - electric fishing - water washing, sodium carbonate solution absorption desulfurization purification, after purification of efflux of dust in the smoke, not detected by 5mg/Nm fand hydrogen sulfide, sulfur dioxide is less than 10mg/Nm fand. Desulfurization waste liquid is used to produce anhydrous sodium sulfite products, sodium sulfite Purity: industrial grade is greater than 93%, food grade is greater than 95%.
The device was put into operation in December 20, 2008 and accepted by Chongqing Environmental Protection Bureau on December 24~30.
(2) sodium carbonate alkali desulfurization and purification system for petrochemical sulfur recovery unit of Zhuhai pagoda
The sulfur recovery unit and auxiliary exhaust system was put into operation in June 2011, sulfur recovery unit design sulfur production scale of 9000 tons / year, the actual production of 2000~3500 tons / year of sulfur, sulfur emissions by incineration, waste heat recovery, water washing, sodium carbonate solution absorption process, the purified efflux was not detected in H2S, SO2 concentration is less than 9.7mg/Nm fand. Desulfurization waste liquid for producing anhydrous sodium sulfite product.
(3) sodium alkali method for desulfurization of coke oven gas from Shanxi sunshine Coking Group
Shanxi sunshine group two sets of 1 million tons / year, two sets of 600 thousand tons / year coking furnace, the 1 million tons of coke oven flue gas flow of about 250 thousand Nm /h fand 600 thousand tons / year of coke oven flue gas flow rate, about 190 thousand Nm /h exhaust gas temperature are fand, 260~280 C, sulfur dioxide concentration was 400~1000mg/Nm fand containing a small amount of carbon black dust. All the desulphurization facilities for the coke oven were designed and built at the end of 2015 and put into operation at the beginning of 2016. They were checked and accepted by Shanxi Environmental Protection Bureau and Yuncheng environmental protection bureau. Flue gas desulfurization device supporting design and construction of all waste heat recovery using by-product steam, sodium carbonate solution treatment process desulfurization, sulfur dioxide concentration is less than 10mg/Nm fand after the flue gas purification.
(4) Shandong wanfuda organic solvent absorption sulfuric acid tail gas desulfurization system
The system was designed and constructed for 40 thousand tons / year waste sulfuric acid regeneration plant, which was completed and put into operation at the end of 2014. Acid tail gas flow 14000Nm /h fand sulfur dioxide concentration, 0.5% (V), using CAS organic solvent circulation absorption desulfurization, sulfur dioxide removal of 98% purity, return the acid production of sulfuric acid, sulfur dioxide in exhaust gas purification fand 10mg/Nm.
Shandong Haike group (5) organic solvent absorption method of sulphur tail gas desulfurization system
Two sets of 15 thousand tons / year of sulfur recovery unit in Shandong Haike group, within the set of actual production of about 4000~9000 tons / year sulfur. The supporting desulfurization systems were completed and put into operation in 2015 and 2016, and were accepted by Dongying Environmental Protection Bureau in early 2017. The sulphur tail gas incinerator burning, washing and dedusting by CAS organic solvent circulation absorption process, 10mg/Nm is less than the concentration of sulfur dioxide exhaust purification fand, removal of sulfur dioxide sulfur production return products Claus device.
2. gas desulfurization and decarbonization unit Gas, Desulfurization, and, Decarbonization, Unit
Raw material: gas containing hydrogen sulfide gas and liquefied petroleum gas, natural gas, coke oven gas, converter gas etc.
The main products of gas purification quality: hydrogen sulfide content of less than 10mg/Nm fand
Acid gas: acidic gas containing hydrogen sulfide and carbon dioxide
Desulfurization process: organic amine solution absorption method, according to the specific gas composition, select the appropriate solvent.
Typical case:
Zhuhai Baota Chemical Co., Ltd. 9000 tons / year Claus sulfur recovery unit
The plant was completed and put into operation in June 2011. The design scale is 9000 tons / year of sulfur production. As the supply of raw acid gas is relatively small, the actual sulfur output is 2000~3500 tons / year. The device of exhaust gas treatment system using sodium alkali method, the efflux of 10mg/Nm is less than the concentration of sulfur dioxide in the exhaust gas fand.
3. Methanthiol, two methyl two sulfide, sodium methyl mercaptide production Methyl mercaptan, sodium methyl mercaptide device and dimethyl disulfide process units
Ingredients: (1) hydrogen sulfide, (2) methanol
Catalyst: special thiol synthesis catalyst, oxidation catalyst
Products: methyl mercaptan; sodium methyl mercaptide; two methyl two sulfide, the purity of 99%~99.95%
Production process: Methanthiol synthesis the synthesis process of fixed bed catalyst by continuous absorption process; sodium methyl mercaptide tower; two methyl two sulfide by liquid phase indirect oxidation process. Adopt DCS system operation
Device photo: 12 thousand tons / year production unit of Guizhou Xingfa Chemical Co., ch3sna company
2000 tons / year of Methanthiol device Guizhou Xingfa Chemical Co. Ltd.
The pilot plant Guizhou Xingfa Chemical Co., 160 tons / year two methyl sulfide in two
4. sodium hydrogen sulfide production plant Sodium hydrosulfide production Unit
Ingredients: (1) hydrogen sulfide, (2) sodium hydroxide
Product: sulfur sodium hydride, solid 70%, liquid (42%, 36%, 32%)
The hydrogen sulfide content in tail gas absorption fand: less than 5mg/Nm
Production process: Tower continuous absorption, fully automatic control
Installation example: Shandong 100 thousand tons / year sodium sulphide production plant
Yinchuan tower Petrochemical Industries Co sulfur sodium hydride production device
Sodium hydrogen production plant of Shandong Rongxin Coal Chemical Co., Ltd.
(three) refining project
1. sulfuric acid alkylation gasoline production equipment Alkylation Unit
Application Industry: refining and chemical industry
Raw material: mixed carbon containing isobutane and butene four (gas separation unit, mixed carbon four, carbon four after ether, etc.)
Catalyst: 98% sulfuric acid
Product: Industrial isooctane, by-product butane
Yield: determined by the content of isobutane and total butene in the raw material
Production process: improved DuPont process
Sulfuric acid consumption: less than 70kg/ tons of alkylated gasoline
Installation example: Dongying 160 thousand years / year sulfuric acid alkylation gasoline production plant of Huanyu Energy Technology Co., Ltd.
2. gas fractionation unit Propene, Recovery, Unit (PRU)
Application Industry: refining, chemical, coal chemical industry
Raw material: liquid hydrocarbon produced by catalytic cracking unit and coking unit
Product objective: propylene, a by-product of mixed carbon four
Propylene Purity: greater than 99.6%
Propylene recovery rate: > 96%
Production process: pressurized distillation process
For example: Shandong Haike group of 100 thousand tons / year gas fractionation
Shandong Ruilin chemical 300 thousand tons / year of gas
Shandong Dayou chemical (Binzhou aobote chemical) 100 thousand tons / year gas fractionation unit
3. methyl tert butyl ether (MTBE) production facility Methyl, TERT, butyl, ether (MTBE) production Unit
Application Industry: refining and chemical industry
Material: (1) containing isobutene mixed carbon four, (2) methanol
Catalyst: resin acid catalyst
Production process: pre catalytic etherification catalytic distillation process
Objective: methyl tertiary butyl ether, by-product of ether, carbon four
Methyl tert butyl ether mass: greater than 98%
Isobutene conversion rate: close to 100%
For example: 160 thousand tons / year MTBE plant in Shandong Haike group Ruilin Chemical Co. Ltd.
Shandong Haike Group Chemical Co., 20 thousand tons / year MTBE unit
4. gasoline etherification unit Gasoline, Etherization, Unit (GEU)
Application Industry: refining and chemical industry
Raw material: (1) carbon containing five olefin fraction such as FCC gasoline and hydrocracking gasoline, (2) methanol
Catalyst: resin acid catalyst
Objective: etherification gasoline
Active olefin conversion rate: close to 100%
Gasoline octane rating: increases by 1-3 units
Two, products
1. Catalyst for thiol synthesis;
2, thioether synthesis catalyst;
3. Gasoline isomerization catalyst;
4, sulfur dioxide absorption solvent (CAS)
Appearance: colorless transparent liquid, easy to dissolve in water. Specific gravity: (D20 DEG C): 1.027, boiling point: under the pressure of 760mmHg, the boiling point is 215.4 DEG C, flash point is 84.1 DEG C, freezing point is -38.5 DEG C, steam pressure is 0.0322mmHg at, 25 DEG C
5. Desulfurization solvent
Physical and chemical properties: appearance: colorless, transparent or slightly yellow liquid, soluble in water and alcohol, slightly soluble in ether. Specific gravity: (D20 DEG C): 1.0425, boiling point: under the pressure of 760mmHg, the boiling point is 247 DEG C, the flash point is 260 DEG C, the freezing point is -21 DEG C, and the viscosity is (20 DEG C): 101CP, the latent heat of vaporization is 519.16KJ/Kg
Two, quality indicators
Serial item index
1 appearance colorless transparent liquid
In 2, wt% = 99
3 water, wt% = 0.3
4 color (Hazen, platinum cobalt scale) is less than or equal to 30
5 refractive index, n20/D
6 density, P20 degrees C (g/cm3) 1.0300~1.0500
Three, use:
This product is mainly used for removal of hydrogen sulfide in natural gas, refinery gas, synthetic gas and gas and ammonia and other industrial gas decarbonization
Four, packaging and storage:
Packing: galvanized iron drum, barrel net weight 200kg.
Storage: This product should be stored in ventilated, cool place. Fire Hazard Area。
Five, matters needing attention:
This product is medium strength, alkaline, corrosive.
6 、 hydrogen sulfide separation and recovery solvent
7. Equipment manufacturing
(1) tower reactor; (2) alkylation reactor, methyl mercaptan synthesis reactor, thioether synthesis reactor; (3) special filter
