Major Coal-to-liquids Company

Inner Mongolia Province, North China

Removal of oil in the synthetic water from coal-to-liquids system, with removal rate up to 98%, to put the wastewater into recycle and improve the product quality.

• Flow Rate: 30t/h
• Inlet: oil content up to 1000ppm, mainly naphtha (C5-C9)
Ingredient Mass flow ,kg/h Ingredient Mass flow ,kg/h
Acetaldehyde
55.8 Pentanone
1.8
Acetone 22.5 Propyl alcohol
122.4
Methyl acetate
1.8 N-butyl alcohol
2.7
N-butanal
2.1 3- methyl -2-butyl alcohol
35.4
Ethyl acetate 0.3 N-pentanol
17.1
Butanone 9 N-hexyl alcohol
3
Carbinol
204.3 1,4- butyrolactone
0.9
Ethanol
333 Water 29170.8
Hexanone
17.1
• Outlet: oil content ≤ 5ppm
• Temperature: around 40 centigrade
• Working Pressure: 0.3~0.5MPa

• Remove oil and suspended solids from synthetic water to less than 5 ppm
• Enable the water to recycle.
• Improve the product quality.

CTL direct liquefaction project is one of the most important national technology developed by this major CTO company, who is listed as one of the top 500 enterprises in China and top 20 coal enterprises in China, with annual production capacity of 160 thousand tons of Phase I project. In order to optimum the production process, recover valuable oxy-compounds and recycle water, oil water separation system is essential. The wastewater from CTL system has very high COD pollutant and highly emulsifying oil, which is hard for degradation, also the alcohols could improve the solubility of oil in water, so that the conventional oil removal hardly solve the above problem without additional dosage.

For the subject purpose, to solve the unique problems, LAND ECO tailored the oil removal system according to the data from pilot test. The customized solution provided by LAND ECO is an effective and compact system, consisted of a bag filter, an AC filter and three-stage GOS units, utilizing LAND ECO patented technology and specific modified material, to separate and remove oil at varied oil concentrations.

• The oil removal is up to 98% from LAND ECO oil separation system, which meets the customer’s requirement of less than 5ppm.
• Enable produced water to be reused.
• Special construction materials of equipment to withstand the corrosive nature of seawater.
• Simple operation and low maintenance, with no additional dosage.
• LAND ECO’s oil-water separation systems have been proven to be capable of working in various conditions.