公开(公告)号：EP0696469B1

公开(公告)日：1998-10-07

申请号：EP95111407.3

申请日：1995-07-20

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Schon, Steven G. ,  Nosowitz, Martin ,  Goetz, Frederick J.

IPC: B01D53/14 ,  B01D53/50

CPC classification number: B01D53/507 ,  B01D53/1493

公开(公告)号：EP0696469A1

公开(公告)日：1996-02-14

申请号：EP95111407.3

申请日：1995-07-20

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Schon, Steven G. ,  Nosowitz, Martin ,  Goetz, Frederick J.

IPC: B01D53/14 ,  B01D53/50

CPC classification number: B01D53/507 ,  B01D53/1493

Abstract: This invention relates to a process for the removal of sulfur dioxide from a stream of gases comprising contacting said stream with a sulfur dioxide absorbing amount of a liquid absorbent comprising:

a) a non-cyclic sulfone of the formula

        R-SO₂-R',

or
b) a non-cyclic sulfonamide of the formula
where, in the formulas a) or b), R,R'R'' and R''' are primary, secondary or tertiary alkyl, or alkaryl groups wherein the alkyl moieties have from 1 to 20 carbons and R'' and R''' may also be hydrogen, water being substantially insoluble with the sulfone of a) and the sulfonamide of b), and separating the rich sulfur dioxide enriched liquid absorbent from said stream.

Abstract translation: 本发明涉及从气流中除去二氧化硫的方法，包括使所述物流与二氧化硫吸收量的液体吸收剂接触，包括：a）式R-SO 2 -R'的非环状砜， 或b）式的非环状磺酰胺，其中在式a）或b）中，R，R'R“和R”'是伯，仲或叔烷基或烷芳基，其中 烷基部分具有1至20个碳，R“和R”'也可以是氢，水基本上不溶于a）的砜和b）的磺酰胺，并且将富含二氧化硫的液体吸收剂从所述 流。