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公开(公告)号：US20140059930A1
公开(公告)日：2014-03-06
申请号：US14056528
申请日：2013-10-17
Applicant: General Electric Company
Inventor： Vladimir Zamansky , Vitali Victor Lissianski , Boris Nikolaevich Eiteneer , Wei Wei , Ravichandra Srinivasa Jupudi , Ramanathan Subramanian
IPC: C10J3/72
CPC classification number: C10J3/721 , C10J3/466 , C10J2300/0956 , C10J2300/0959 , C10J2300/0976 , C10J2300/1223 , Y02E20/18 , Y02P20/145
Abstract: A coal gasifier is retrofitted to achieve multiple advantages such as reduced oxygen consumption, reduced CO2 and NOx emissions, better H:C ratio, better carbon conversion etc. This is achieved by dividing the coal into at least two zones and modifying the gasifier and operating it as described. The coal is injected into a first zone, configured to devolatilize a substantial portion of the injected coal to produce coal char and volatiles. The operation is tuned to substantially consume the oxidant injected in the first zone. A low-calorific-value, high oxidant feedstock is injected in second zone of the gasifier. The devolatilization of the low-calorific-value, high oxidant content feedstock provides the oxygen containing compounds which gasify at least a portion of the coal char generated in the first zone.
Abstract translation: 改造煤气化炉可实现多种优点，例如减少氧气消耗，减少二氧化碳和NOx排放，更好的H：C比，更好的碳转化等。这是通过将煤分为至少两个区域和修改气化器和运行 如所述。 煤被注入第一区域，其被配置为使大部分注入的煤脱挥发生以产生煤炭和挥发物。 该操作被调整以基本上消耗在第一区域中注入的氧化剂。 将低热值的高氧化剂原料注入气化器的第二区。 低热值高氧化剂含量原料的脱挥发分提供了含氧化合物，其使在第一区域中产生的煤焦炭的至少一部分气化。
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公开(公告)号：US20200232416A1
公开(公告)日：2020-07-23
申请号：US16252641
申请日：2019-01-20
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Roy James Primus , Adam Edgar Klingbeil , Dattatraya Somnath Bhagoji , Kevin Scott McElhaney , Bhaskar Tamma , Ravichandra Srinivasa Jupudi , Kevin Paul Bailey
Abstract: A piston crown for a combustion system is disclosed. The piston crown includes a piston bowl having a circumferential recess and a plurality of first recesses arranged spaced apart from each other along a circumferential direction. The circumferential recess is disposed proximate to a circumference of the piston crown. Each recess of the plurality of the first recesses extends between a center of the piston crown and the circumferential recess, and a width and a depth of each recess of the plurality of first recesses are extended along a radial direction for an entire length of each recess of the plurality of first recesses.
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公开(公告)号：US09365784B2
公开(公告)日：2016-06-14
申请号：US14056528
申请日：2013-10-17
Applicant: General Electric Company
Inventor： Vladimir Zamansky , Vitali Victor Lissianski , Boris Nikolaevich Eiteneer , Wei Wei , Ravichandra Srinivasa Jupudi , Ramanathan Subramanian
CPC classification number: C10J3/721 , C10J3/466 , C10J2300/0956 , C10J2300/0959 , C10J2300/0976 , C10J2300/1223 , Y02E20/18 , Y02P20/145
Abstract: A coal gasifier is retrofitted to achieve multiple advantages such as reduced oxygen consumption, reduced CO2 and NOx emissions, better H:C ratio, better carbon conversion etc. This is achieved by dividing the coal into at least two zones and modifying the gasifier and operating it as described. The coal is injected into a first zone, configured to devolatilize a substantial portion of the injected coal to produce coal char and volatiles. The operation is tuned to substantially consume the oxidant injected in the first zone. A low-calorific-value, high oxidant feedstock is injected in second zone of the gasifier. The devolatilization of the low-calorific-value, high oxidant content feedstock provides the oxygen containing compounds which gasify at least a portion of the coal char generated in the first zone.
Abstract translation: 改造煤气化炉可实现多种优点，例如减少氧气消耗，减少二氧化碳和NOx排放，更好的H：C比，更好的碳转化等。这是通过将煤分为至少两个区域和修改气化器和运行 如所述。 煤被注入第一区域，其被配置为使大部分注入的煤脱挥发生以产生煤炭和挥发物。 该操作被调整以基本上消耗在第一区域中注入的氧化剂。 将低热值的高氧化剂原料注入气化器的第二区。 低热值高氧化剂含量原料的脱挥发分提供了含氧化合物，其使在第一区域中产生的煤焦炭的至少一部分气化。
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