YD-II Clean Sulfur Recovery (Coal Chemical Industry)
Ningbo FareastTech Catalyst Engineering Co.,Ltd was established in 2008, it is a national high-tech enterprises with 41 patents who is engaged in chemical technology package, engineering technological transformation and new materials development and promotion.It was formed by the management and technical team of the former Ningbo Chemical Industry Institute.And it has been recognized and appreciated by Liu Huiyun Higher Engineering, Department of Nitrogen Fertilizer, Ministry of Chemical Industry of China.She pointed out: coal chemical plant production is stable in long term operation, the first thing to do is to understand a word "net".
In view of the state's new environmental protection emission requirements for coal chemical enterprises,the tail gas containing acid gas produced by coal chemical enterprises must meet the relevant indicators of the Ministry of environmental protection in order to discharge.Some areas even require exhaust emissions from related enterprises to achieve super clean emissions.Fareast Tech has carried out technical research on the treatment of acid gas tail gas in coal chemical enterprises, and has now issued "YD-II Clean Sulfur Recovery Technology".According to the products，the technology is divided into "YD-II Clean Sulfur Recovery -Acid Gas Sulphuric Acid Technology" and "YD-II Clean Sulfur Recovery - Acid Gas Sulphur Technology". This two schemes can achieve high efficiency of sulfur recovery, and there are many sets of devices in use in China."YD-II Clean Sulfur Recovery Technology" can not only make the coal chemical exhaust emissions meet the requirements of the national super net emission, but also realize the "waste transformation of the tail gas", which has achieved the effect of "one stone double carving".
The technical success comes from the research platform,we established the Engineering Technology Research Center with Ningbo Institute of Industrial Technology (CNITECH) and have established close technical cooperation with Tianjin University and the Southern Environmental Protection Company of the United States.The technical team has brought into full play its own skills and opened up a new technical way for ultra clean emissions in China.
Operating device

(1) YD-II Clean Sulfur Recovery -Acid Gas Sulphuric Acid Technology

(2) YD-II Clean Sulfur Recovery - Acid Gas Sulphur Technology

 

1、YD-II Clean Sulfur Recovery -Acid Gas Sulphuric Acid Technology
(1) The investment is small, the floor area is small, the operation cost is low, and the operation flexibility is big;
(2) After treatment, the tail gas can reach the super net emission standard,SO₂≤25mg/Nm³，H₂S≤10mg/Nm³;
(3) Sulfur yield is high, quality is good, sulfur products meet national standard GB/T 2449-2014 superior products;
(4) Using low temperature catalytic incineration technology, the cost of tail gas incineration is greatly reduced compared with the traditional incinerator.

2、YD-II Clean Sulfur Recovery - Acid Gas Sulphur Technology
(1) Mature technology and complete process information;
(2) Wide range of application, suitable for different concentrations of H₂S working conditions, the device has large operating flexibility;
(3) The process is simple and the equipment is reasonably configured;
(4) The catalyst has good selectivity, high conversion rate and sulfur recovery rate of over 99.8%;
(5) Using advanced tail gas treatment technology, tail gas SO₂≤100mg/m³, meet the latest (GB31570-2015) environmental requirements;
(6) The combustion furnace has unique design, high combustion efficiency and long service life;
(7) The special core equipment - sulphuric acid condenser, advanced technology and stable operation;
(8) The acid mist trap has better defrosting effect than other similar products;
(9) Investment province, short period of time, good service, high cost performance;
(10) The by-product has high quality steam and the economic benefit is considerable.

YD-II Clean Sulfur Recovery Technology has been put into use in many famous enterprises and achieved good reputation and economic benefits.The following projects have been put into operation and are being built as follows:

Serial number	project	Unit size / amount of processing	Export tail gas index	Remarks
One	Xinjiang Tianye Group 7000 ton / year first sulfur recovery unit	7000 tons / year	SO2≤23mg/Nm3, H2S≤8mg/Nm3	YD-II Clean Sulfur Recovery -Acid Gas Sulphuric Acid Technology
Two	Guizhou Tianzhu Chemical Industry Co., Ltd. 20 thousand tons / year sulfur recovery unit	20000 tons / year	SO2≤22mg/Nm3, H2S≤9mg/Nm3
Three	Gansu Huasheng Fine Chemical Co., Ltd. 450 thousand ton annual new process aromatics project sulfur recovery unit	3500 tons / year	SO2≤25mg/Nm3, H2S≤10mg/Nm3
Four	Two phase sulfur recovery unit of Xinjiang Tianye Group (in construction)	9000 tons / year	SO2≤20mg/Nm3, H2S≤5mg/Nm3
Five	Revamping of two synthetic ammonia company in Shandong wet process sulfuric acid transformation project	2800 Nm3/h,H2S16mol%	SO2≤30mg/ Nm3,Sulfuric acid mist≤5mg/ Nm3	YD-II Clean Sulfur Recovery - Acid Gas Sulphur Technology
Six	Reconstruction project of acid gas sulphuric acid from Jinniu Tian tie Coal Coking Co., Ltd.	670 Nm3/h, H2S58mol%	SO2≤28mg/ Nm3,Sulfuric acid mist≤5mg/Nm3
Seven	Acid gas sulphuric acid transformation project of Hebei peak Coal Coking Co., Ltd.	750 Nm3/h, H2S62mol%	SO2≤25mg/ Nm3, Sulfuric acid mist≤5mg/Nm3