公开(公告)号：US5857287A

公开(公告)日：1999-01-12

申请号：US928289

申请日：1997-09-12

Applicant: John A. Schield ,  Jerry J. Weers

Inventor： John A. Schield ,  Jerry J. Weers

IPC: C10L1/14 ,  C10L1/18 ,  C10L1/195 ,  C10L1/22

CPC classification number: C10L1/195 ,  C10L1/143 ,  C10L1/1966 ,  C10L1/1973 ,  C10L1/2222 ,  C10L1/2364

Abstract: Adding to a fuel oil a composition of from about 1 to about 40 parts by weight ethylene/vinyl acetate copolymer having a vinyl acetate content of from about 10% by weight to about 50% by weight and a weight average molecular weight of from about 2,000 to about 10,000, and 1 part by weight esterified copolymer of at least one generally linear .alpha.-olefin of from about 18 to about 50 carbon atoms and maleic anhydride in an .alpha.-olefin to maleic anhydride molar ratio of from about 4:1 to about 1:2, the copolymer having a weight average molecular weight of from about 2,000 to about 20,000, the esterified copolymer having been esterified with a plurality of aliphatic alcohols having from about four to about forty carbon atoms, imparts to the fuel oil surprisingly improved low temperature fluidity, provided that the alcohols include an eight carbon alcohol making up from about 50 to about 85 molar percent of the alcohols.

Abstract translation: 向燃料油中加入约1至约40重量份的乙酸乙烯酯含量为约10重量％至约50重量％且重均分子量约2,000的乙烯/乙酸乙烯酯共聚物的组合物 至约10,000份和1份（重量）的至少一种约18至约50个碳原子的通常直链的α-烯烃和马来酸酐在α-烯烃与马来酸酐摩尔比为约4:1至约 1：2，共聚物的重均分子量为约2,000至约20,000，酯化的共聚物已被多个具有约4至约40个碳原子的脂族醇酯化，赋予燃油明显改善的低 温度流动性，条件是醇包括构成约50至约85摩尔％的醇的8个碳醇。

公开(公告)号：US08366914B2

公开(公告)日：2013-02-05

申请号：US12250679

申请日：2008-10-14

Applicant: Jianzhong Yang ,  Tauseef Salma ,  John A. Schield ,  Jerry J. Weers ,  Joseph L. Stark

Inventor： Jianzhong Yang ,  Tauseef Salma ,  John A. Schield ,  Jerry J. Weers ,  Joseph L. Stark

IPC: C10G29/20

CPC classification number: C07C291/02 ,  C07C2601/16 ,  C10G29/205 ,  C10G29/22 ,  C10G29/26

Abstract: Compounds having the formulae and general formulae: wherein each R1, R2, R3 and R4 are the same or different and may be hydrogen, an alkyl group, an aryl group, a halogen, a nitro group, an alkyl or aryl ester, and an alkyl or aryl ether; compounds having the general formula: wherein R is an alkyl, aryl or electron withdrawing group; mixtures thereof; can be used as additives for crude oil and hydrocarbons. These compounds may be used to scavenge mercaptans, sulfides, cyanides, and primary or secondary amines; either alone or in combination.

Abstract translation: 具有通式和通式的化合物：其中每个R 1，R 2，R 3和R 4相同或不同，可以是氢，烷基，芳基，卤素，硝基，烷基或芳基酯和 烷基或芳基醚; 具有以下通式的化合物：其中R是烷基，芳基或吸电子基团; 其混合物; 可用作原油和碳氢化合物的添加剂。 这些化合物可用于清除硫醇，硫化物，氰化物和伯胺或仲胺; 单独或组合。

公开(公告)号：US06887447B2

公开(公告)日：2005-05-03

申请号：US10688243

申请日：2003-10-17

Applicant: John A. Schield ,  Weldon J. Cappel ,  Jerry J. Weers ,  Glenn L. Roof

Inventor： John A. Schield ,  Weldon J. Cappel ,  Jerry J. Weers ,  Glenn L. Roof

IPC: C01B17/02

CPC classification number: C01B17/0232 ,  C01B17/0243

Abstract: The present invention provides a method for inhibiting the evolution of H2S from sulfhydryl compounds in molten sulfur by using scavenging agents such as anhydrides and polymers thereof, conjugated ketones, carbonates, epoxides, monoesters and diesters of unsaturated dicarboxylic acids and polymers of these esters, and the like and mixtures thereof. In one embodiment, it is preferred that the scavenging agent is in liquid form at contact temperature with the molten sulfur. In another embodiment, the scavenging agent may be atomized into the vapor space over the molten sulfur to contact the sulfur with the agent.

Abstract translation: 本发明提供了一种通过使用清除剂如酸酐及其聚合物，共轭酮，碳酸酯，环氧化物，不饱和的碳酸酯和二酯来抑制硫醇化合物在熔融硫中释放H 2 S的方法 二羧酸和这些酯的聚合物等，以及它们的混合物。 在一个实施方案中，优选的是，清除剂在与熔融硫的接触温度下为液体形式。 在另一个实施方案中，清除剂可以被雾化到熔融硫上的蒸气空间中以使硫与试剂接触。

公开(公告)号：US5772706A

公开(公告)日：1998-06-30

申请号：US928289

申请日：1997-09-12

Applicant: John A. Schield ,  Jerry J. Weers

Inventor： John A. Schield ,  Jerry J. Weers

IPC: C10L1/14 ,  C10L1/18 ,  C10L1/195 ,  C10L1/22

CPC classification number: C10L1/195 ,  C10L1/143 ,  C10L1/1966 ,  C10L1/1973 ,  C10L1/2222 ,  C10L1/2364

Abstract: Adding to a fuel oil a composition of from about 1 to about 40 parts by weight ethylene/vinyl acetate copolymer having a vinyl acetate content of from about 10% by weight to about 50% by weight and a weight average molecular weight of from about 2,000 to about 10,000, and 1 part by weight esterified copolymer of at least one generally linear .alpha.-olefin of from about 18 to about 50 carbon atoms and maleic anhydride in an .alpha.-olefin to maleic anhydride molar ratio of from about 4:1 to about 1:2, the copolymer having a weight average molecular weight of from about 2,000 to about 20,000, the esterified copolymer having been esterified with a plurality of aliphatic alcohols having from about four to about forty carbon atoms, imparts to the fuel oil surprisingly improved low temperature fluidity, provided that the alcohols include an eight carbon alcohol making up from about 50 to about 85 molar percent of the alcohols.

公开(公告)号：US06656445B2

公开(公告)日：2003-12-02

申请号：US09975438

申请日：2001-10-09

Applicant: John A. Schield ,  Weldon J. Cappel ,  Jerry J. Weers ,  Glenn L. Roof

Inventor： John A. Schield ,  Weldon J. Cappel ,  Jerry J. Weers ,  Glenn L. Roof

IPC: C01B1700

CPC classification number: C01B17/0232 ,  C01B17/0243

Abstract: The present invention provides a method for inhibiting the evolution of H2S from sulfhydryl compounds in molten sulfur by using scavenging agents such as anhydrides and polymers thereof, conjugated ketones, carbonates, epoxides, monoesters and diesters of unsaturated dicarboxylic acids and polymers of these esters, and the like and mixtures thereof. In one embodiment, it is preferred that the scavenging agent is in liquid form at contact temperature with the molten sulfur. In another embodiment, the scavenging agent may be atomized into the vapor space over the molten sulfur to contact the sulfur with the agent.

公开(公告)号：US20090095658A1

公开(公告)日：2009-04-16

申请号：US12250679

申请日：2008-10-14

Applicant: Jianzhong Yang ,  Tauseef Salma ,  John A. Schield ,  Jerry J. Weers ,  Joseph L. Stark

Inventor： Jianzhong Yang ,  Tauseef Salma ,  John A. Schield ,  Jerry J. Weers ,  Joseph L. Stark

IPC: C10G29/20 ,  C07C291/02 ,  C10G17/00

CPC classification number: C07C291/02 ,  C07C2601/16 ,  C10G29/205 ,  C10G29/22 ,  C10G29/26

Abstract: Compounds having the formulae and general formulae: wherein each R1, R2, R3 and R4 are the same or different and may be hydrogen, an alkyl group, an aryl group, a halogen, a nitro group, an alkyl or aryl ester, and an alkyl or aryl ether; compounds having the general formula: wherein R is an alkyl, aryl or electron withdrawing group; mixtures thereof; can be used as additives for crude oil and hydrocarbons. These compounds may be used to scavenge mercaptans, sulfides, cyanides, and primary or secondary amines; either alone or in combination.

Abstract translation: 具有通式和通式的化合物：其中每个R 1，R 2，R 3和R 4相同或不同，可以是氢，烷基，芳基，卤素，硝基，烷基或芳基酯，和 烷基或芳基醚; 具有以下通式的化合物：其中R是烷基，芳基或吸电子基团; 其混合物; 可用作原油和碳氢化合物的添加剂。 这些化合物可用于清除硫醇，硫化物，氰化物和伯胺或仲胺; 单独或组合。

公开(公告)号：US20120329930A1

公开(公告)日：2012-12-27

申请号：US13527105

申请日：2012-06-19

Applicant: Joseph L. Stark ,  Robert A. Steele ,  Ksenija Babic-Samardzija ,  John A. Schield ,  Weldon J. Cappel ,  Matthew T. Barnes

Inventor： Joseph L. Stark ,  Robert A. Steele ,  Ksenija Babic-Samardzija ,  John A. Schield ,  Weldon J. Cappel ,  Matthew T. Barnes

IPC: C08L61/20 ,  C10C3/02 ,  C10G29/20 ,  C08G12/06 ,  E21B43/00 ,  C08K5/09 ,  C08K5/13 ,  C08K5/10 ,  C08G12/26 ,  C10L1/00 ,  C08K5/06

CPC classification number: C08G12/06 ,  C09K2208/20 ,  C10G29/20 ,  C10G2300/1025 ,  C10G2300/1033 ,  C10G2300/207

Abstract: An effective hydrogen sulfide scavenger that produces little corrosion may be prepared by reacting glyoxal with a compound having at least two primary or secondary amine groups. The subject hydrogen sulfide scavengers may be used with both the production of crude oil and natural gas, and the refining of same.

Abstract translation: 产生很少腐蚀的有效的硫化氢清除剂可以通过使乙二醛与具有至少两个伯胺或仲胺基团的化合物反应制备。 本发明的硫化氢清除剂既可用于生产原油和天然气，也可用于精炼。

公开(公告)号：US4617025A

公开(公告)日：1986-10-14

申请号：US725702

申请日：1985-04-22

Applicant: Michael I. Naiman ,  John A. Schield

Inventor： Michael I. Naiman ,  John A. Schield

IPC: C08F8/00 ,  C10L1/20

CPC classification number: C10L1/206 ,  C08F8/00

Abstract: This invention relates to polyalkylenes which contain both halogen and ester groups, to the preparation thereof, and to the use thereof as pour depressants for fuel oils. This invention also relates to polyalkylene esters.

Abstract translation: 本发明涉及含有卤素和酯基的聚亚烷基，其制备方法以及作为燃料油的倾倒剂的用途。 本发明还涉及聚亚烷基酯。

公开(公告)号：US07838468B2

公开(公告)日：2010-11-23

申请号：US11969681

申请日：2008-01-04

Applicant: David J. Poelker ,  JoAnn McMahon ,  John A. Schield

Inventor： David J. Poelker ,  JoAnn McMahon ,  John A. Schield

IPC: B01F17/00 ,  C08F20/00

CPC classification number: C09K8/608 ,  C07C235/10 ,  C07D207/40 ,  C07D207/416 ,  C09K8/035 ,  C09K8/5083 ,  C09K8/68 ,  C09K2208/12

Abstract: A clayish subterranean formation, such as may be encountered in rock surrounding a well bore during hydrocarbon recovery operations may be stabilized with relatively high molecular weight acid ammonium salts of an imide of polymaleic anhydride. The salts may be unneutralized or partially neutralized. The invention is particularly relevant to hydraulic fracturing fluids used in enhanced oil recovery. The compositions herein are made in the presence of a reactive solvent, such as a polyalkylene glycol, e.g. polyethylene glycol. The compositions of this invention are more environmentally friendly than some current technology.

Abstract translation: 在烃回收操作期间，例如可能在围绕井眼的岩石中遇到的粘土质地层可以用聚马来酸酐的酰亚胺的相对高分子量的酸性铵盐来稳定。 盐可以是未中和或部分中和的。 本发明特别涉及用于强化采油的水力压裂液。 本文中的组合物是在反应性溶剂如聚亚烷基二醇例如聚乙二醇存在下制备的。 聚乙二醇。 本发明的组合物比目前的技术更环保。

公开(公告)号：US07284610B2

公开(公告)日：2007-10-23

申请号：US11010759

申请日：2004-12-13

Applicant: David J. Poelker ,  Joann McMahon ,  John A. Schield

Inventor： David J. Poelker ,  Joann McMahon ,  John A. Schield

IPC: E21B33/138

CPC classification number: C09K8/608 ,  C07C235/10 ,  C07D207/40 ,  C07D207/416 ,  C09K8/035 ,  C09K8/5083 ,  C09K8/68 ,  C09K2208/12

Abstract: A clayish subterranean formation, such as may be encountered in rock surrounding a well bore during hydrocarbon recovery operations may be stabilized with a polyamine salt of an imide of polymaleic anhydride. The salt may be unneutralized or partially neutralized. The invention is particularly relevant to hydraulic fracturing fluids used in enhanced oil recovery. The compositions of this invention are more environmentally friendly than some current technology.

Abstract translation: 可以利用聚马来酸酐的酰亚胺的多胺盐来稳定在烃回收操作期间围绕井眼的岩石中遇到的粘土层。 盐可以是未中和或部分中和的。 本发明特别涉及用于强化采油的水力压裂液。 本发明的组合物比现有技术更环保。