Comprehensive Re-utilization of Particle Pollutants from FCC Unit
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- Jeffery Randall
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1 Comprehensive Re-utilization of Particle Pollutants from FCC Unit Liang Changfeng is the director of the HSE management department for Qingdao Huicheng Environmental Technology Co., Ltd. He has been with the company for 3 years. As a graduate student of environmental science and engineering, he has profound professional knowledge base. His is hse@hcpect.com. Page 1
2 Content 1. Introduction of particle pollutants from FCC Unit 2. Forming reason of particle pollutants from FCC Unit 3. Classify of particle pollutants from FCC Unit 4. Different solid waste treatment technologies of particle pollutants from FCC Unit Page 2
3 1. Introduction of particle pollutants from FCC Unit The fluid catalytic cracking unit could use about 1.2 million tons of catalytic cracking catalyst all over the world. In the process of production will produce more than 1 million tons of spent catalyst. Most of the spent catalyst will be buried for no use value. Page 3
4 Hazard of particle pollution from FCC Unit The particle in air can cause haze and other air pollution. The heavy metal cause serious pollution to the groundwater and soil. All this is a waste of natural resource. We need to make the fullest use of these resources. Page 4
5 2. Forming reason of particle pollutants from FCC Unit 1 High temprature or steam in high temprature 2 Coking 3 Metal poisoning 4 Mechanical friction Page 5
6 3. Classify of particle pollutants from FCC Unit Application value 1 2 FCC catalyst has better performance The other useless pollutants S BET 100m 2 /g, Activity 60%, metal content 20000ppm Others except for above, The flue gas desulfurization sludge Page 6
7 3. Classify of particle pollutants from FCC Unit How S BET Activity Analysis and determination platform Page 7
8 3. Classify of particle pollutants from FCC Unit How Magnetic separation Some metals ( like Fe Ni) has magnetism More metals,larger magnetism Particle pollutants with metal contents 20000ppm could be separated in some voltage Entrance Rubber wheel Magnetic disk More metal Exit Less metal Page 8
9 4. Different solid waste treatment technologies of particle pollutants from FCC Unit 1 FCC equilibrium catalyst rejuvenation technology FCC catalyst has better performance 2 Elements separation technology The other useless pollutants Page 9
10 FCC equilibrium catalyst rejuvenation technology Invention patent Method Properties of product Industrial application organic and inorganic coupling Lower cost Specific selectivity High activity 2009 in China Page 10
11 FCC equilibrium catalyst rejuvenation technology Regenerated catalyst Fresh catalyst Deactivated catalyst Rejuvenated catalyst Page 11
12 FCC equilibrium catalyst rejuvenation technology Principle of rejuvenation Page 12
13 FCC equilibrium catalyst rejuvenation technology The comparison of catalyst properties before and after rejuvenation Item Before After Surface area(m 2 /g) Micro Activity %(m/m) Pore size (ml/g) Fe(m% ) Ni(m% ) Metal V(m% ) Na(m% ) (µm) (µm) Attrition 40-60(µm) (µm) >110(µm) Page 13
14 item FCC equilibrium catalyst rejuvenation technology Before trail With 15% rejuvenated catalyst difference Same time last year Jan Industrial application calibration data Catalyst BASE BASE 85%+ rejuvenated 15% BASE Processing capacity ton/day Residue blending ratio% Dry gas LPG gasoline Light diesel Heavy diesel slurry coke loss Gasoline + light diesel LPG + gasoline + light diesel Page 14
15 Decomposition reaction Chemical composition of pollutant RE 2 O 3 6% Fe Ni V Ca Na (4%) Elements RE 2 O 3 6% Fe Ni V Ca Na (4%) SiO 2 42% Al 2 O 3 48% separation SiO 2 42% Al 2 O 3 48% Before treatment After treatment Page 15
16 Decomposition reaction Principle Page 16
17 Decomposition reaction Step 1 Separation of Si Method Acid-dissociation separation Products SiO 2 Quality Application field Purity 95% Macroporous Lightweight(0.4g/ml) 1 Adsorbent 2 Support Page 17
18 Decomposition reaction Step 2 Separation of Al Method Products Quality Crystallization separation NH 4 Al(SO 4 )2 12H 2 O Industrial level of CNS Application field 1 Purifying agent 2 Paper industry 3 Pharmaceutical industry 4 Light industry(tanning) Page 18
19 Decomposition reaction Step 3 Separation of RE Method Products Concentration separation RE-sodium sulfate double salt Quality Purity 95% Application field 1 Catalysis 2 Metallurgy 3 Ceramic 4 Textile Page 19
20 Decomposition reaction Step 4 Separation of Ni Method Products Quality Crystallization separation (NH 4 ) 2 Ni(SO 4 ) 2 10H 2 O Purity 95% Application field Smelting of Ni Page 20
21 Decomposition reaction Step 5 Separation of other metals Method Products Alkali precipitation(still try our best for other method) Mixture of Fe V Ca and little Ni Quality Content of metals 50% Application field Steelmaking workshop and other familiar plant Page 21
22 Since 2006, our company invests a lot of research strength to solve the pollution problem of particle pollutants from FCC Unit.At present, we provides such services for more than a dozen units. With our help, they completely solve the pollution problem of particle pollutants from FCC Unit. Page 22
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