Richard M Guarino, 8637 Whitney Ave, Lowell, MA 01850

7777086, Aug 17, 2010

Feb 27, 2003

10/505787

Shyh-Yuan Hwang - Newton MA, US
Maruti Bhandarkar - Joel Nagar, IN
Chung-Ming Chi - Weymouth MA, US
Waheed Mukaddam - Cambridge MA, US
Frank Demers - Holderness NH, US
Richard F. Guarino - East Freetown MA, US
Dana E Johnson - Hopkinton MA, US

Stone & Webster, Inc. - Houston TX

C07C 2/66
C07C 7/04

585448, 585809

Improved integrated processes for the production of alkyl aromatic compounds are disclosed wherein aromatic compounds which may be treated for removal of deleterious substances are reacted with olefin compounds, which may also be treated for contaminant removal, in the presence of acidic zeolite catalyst(s) to produce the desired alkyl aromatic compound(s). The aromatic and preferably also the olefin feeds are treated substantially to remove contaminants, particularly the nitrogen compounds contained therein, before they are brought together for reaction in the presence of the zeolite catalyst(s). In accordance with the present invention, it has been found that feed pretreatment for removal of nitrogen compounds significantly improves the run length and life of the acidic zeolite catalyst(s). The feed pretreatment of this invention may include the steps of distillation, extraction, and/or adsorption by solid adsorbent, which may be regenerated in accordance with further embodiments of this invention.

2010026, Oct 21, 2010

Jul 6, 2010

12/830725

Shyh-Yuan Hwang - Newton MA, US
Maruti Bhandarkar - Joel Nagar, IN
Chung-Ming Chi - Weymouth MA, US
Waheed Mukaddam - Cambridge MA, US
Frank Demers - Holderness NH, US
Richard F. Guarino - East Freetown MA, US
Dana E. Johnson - Hopkinton MA, US

C07C 2/66

585448

Improved integrated processes for the production of alkyl aromatic compounds are disclosed wherein aromatic compounds which may be treated for removal of deleterious substances are reacted with olefin compounds, which may also be treated for contaminant removal, in the presence of acidic zeolite catalyst(s) to produce the desired alkyl aromatic compound(s). The aromatic and preferably also the olefin feeds are treated substantially to remove contaminants, particularly the nitrogen compounds contained therein, before they are brought together for reaction in the presence of the zeolite catalyst(s). In accordance with the present invention, it has been found that feed pretreatment for removal of nitrogen compounds significantly improves the run length and life of the acidic zeolite catalyst(s). The feed pretreatment of this invention may include the steps of distillation, extraction, and/or adsorption by solid adsorbent, which may be regenerated in accordance with further embodiments of this invention.

2013032, Dec 5, 2013

Nov 30, 2011

13/982964

Shyh-Yuan H. Hwang - Needham MA, US
Ronald Birkhoff - Houston TX, US
Richard F. Guarino - Fairhaven MA, US
J. Erik Moy - South Grafton MA, US
Joseph C. Peters - Quincy MA, US

BADGER LICENSING LLC - Boston MA

C07C 2/64

585323

A process is disclosed for alkylating benzene contained in a benzene-containing refinery gasoline stream also comprising at least 0.1 wt % of at least one C6 to C8 olefin. In the process, the refinery gasoline stream is contacted under alkylation conditions with an alkylating agent selected from one or more C2 to C5 olefins in at least a first alkylation reaction zone and a second alkylation reaction zone connected in series to produce an alkylated effluent, which has reduced benzene content as compared with said refinery gasoline stream. All of the refinery gasoline stream is introduced into the first alkylation reaction stage, whereas an aliquot of the alkylated effluent is recycled and introduced to the second, but not the first, alkylation reaction zone.

2013033, Dec 12, 2013

Nov 30, 2011

13/982944

Shyh-Yuan H. Hwang - Needham MA, US
Ronald Birkhoff - Houston TX, US
Richard F. Guarino - Fairhaven MA, US
J. Erik Moy - South Grafton MA, US
Joseph C. Peters - Quincy MA, US

BADGER LICENSING LLC - Boston MA

C10G 49/08

585446, 585467

In a process for alkylating benzene contained in a benzene-containing refinery gasoline stream, the benzene-containing refinery gasoline stream is contacted with an alkylating agent selected from one or more C2 to C5 olefins in at least one alkylation reaction zone under alkylation conditions to produce an alkylated effluent which has reduced benzene content as compared with said refinery gasoline stream and is essentially free of said alkylating agent. An aliquot of the alkylated effluent is then recycled to the one at least one alkylation reaction zone such that the molar ratio of alkylatable aromatic compounds to said alkylating agent in the combined refinery gasoline and recycle streams introduced into the at least one alkylation reaction zone is at least 1.0:1.

2013033, Dec 12, 2013

Feb 7, 2011

13/982956

Shyh-Yuan H. Hwang - Needham MA, US
Ronald Birkhoff - Houston TX, US
Richard F. Guarino - Fairhaven MA, US
J. Erik Moy - South Grafton MA, US
Geeta Pherwani - Watertown MA, US

BADGER LICENSING LLC - Boston MA

C07C 2/66

585467, 585446

A process for reducing the benzene content of gasoline stream, such as a reformate or light naphtha, comprises alkylating the gasoline stream in a reaction zone with an olefin alkylating agent. A paraffinic stream comprising C5 to ClO paraffins is fed to the inlet of the alkylation reaction zone.

2014019, Jul 10, 2014

Nov 30, 2011

14/238592

Shyh-Yuan H. Hwang - Needham MA, US
Ronald Birkhoff - Houston TX, US
Richard F. Guarino - Fairhaven MA, US
J. Erik Moy - South Grafton MA, US
Geeta Pherwani - Watertown MA, US

BADGER LICENSING LLC - Boston MA

C07C 2/64

585449

A process is described for alkylating benzene contained in a refinery gasoline stream, in which the refinery gasoline stream is contacted with an alkylating agent comprising one or more C2 to C5 olefins in an alkylation reaction zone under alkylation conditions to produce an alkylated effluent. The alkylation reaction zone comprises at least a first alkylation reaction stage and a second alkylation reaction stage and a portion of said alkylating agent is fed to each of said first and second alkylation reaction stages so that, although the molar ratio of alkylatable aromatic to alkylating agent in the total feed to the alkylation reaction zone is less than 1, the molar ratio of alkylatable aromatic to alkylating agent at the inlet of each of the first and second alkylation reaction stages is at least 1.0.