Wells – Processes – Distinct – separate injection and producing wells
Patent
1990-12-24
1992-03-17
Suchfield, George A.
Wells
Processes
Distinct, separate injection and producing wells
166275, 252 8554, E21B 4322
Patent
active
050959867
ABSTRACT:
The invention is a method of producing oil soluble surfactants from lignin which comprises reacting benzyl alcohol with lignin phenol at elevated temperature in the presence of a non-nucleophilic basic catalyst to produce a lignin phenol reaction product, and sulfonating the lignin phenol reaction product to produce an oil soluble lignin surfactant, said lignin phenol produced by placing lignin in contact with water, converting the lignin into low molecular weight lignin phenol by reducing the lignin in the presence of a reducing agent of carbon monoxide or hydrogen which creates a reduction reaction mixture comprising oil soluble lignin phenol, said reduction occurring at a temperature greater than about 200.degree. C. and a pressure greater than about 100 psi, and recovering the oil soluble lignin phenol from the reduction mixture.
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Davis Centha A.
Naae Douglas G.
Delhommer Harold J.
Park Jack H.
Priem Kenneth R.
Suchfield George A.
Texaco Inc.
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