公开(公告)号：US20140119400A1

公开(公告)日：2014-05-01

申请号：US13660011

申请日：2012-10-25

Applicant: AXETRIS AG

Inventor： Brian KINKADE ,  Joe GREGORIA

IPC: G01N25/22

CPC classification number: G01N33/225

Abstract: A sample stream of the gas to be analyzed is fed into a combustor. The combustor mixes the gas with ambient air to an over-stoichiometric oxygen content and combusts the sample gas completely. A respective TDLS analyzer measures the CO2 and/or H2O concentration of the combustor's flue gas. In case that the sample gas contains relevant concentrations of CO2 and/or H2O, a second TDLS CO2 and/or H2O analyzer may be added which measures the CO2 and/or or H2O concentration upstream of the combustor. The measurement of methane and ethane or other hydrocarbon and mixtures thereof is also possible. The method and device allows the measurement of the heating value and/or the total organic carbon of a natural gas with high temporal resolution. The advantages of the invention are: Real-time determination of gas quality and energy value; real-time determination of Total Organic Carbons; if required, real-time measurement of the non-methane/non-ethane Total Organic Carbons; unattended, calibration- and service-free operation over extended periods of time and operation without consumables.

Abstract translation: 将要分析的气体的样品流送入燃烧器。 燃烧器将气体与环境空气混合成超过化学计量的氧气含量，并完全燃烧样品气体。 相应的TDLS分析仪测量燃烧器烟道气的CO2和/或H2O浓度。 在样品气体含有相关浓度的CO 2和/或H 2 O的情况下，可以添加第二TDLS CO 2和/或H 2 O分析仪，其测量燃烧器上游的CO 2和/或或H 2 O浓度。 甲烷和乙烷或其他烃及其混合物的测量也是可能的。 该方法和装置允许以高时间分辨率测量天然气的热值和/或总有机碳。 本发明的优点是：实时测定气体质量和能量值; 总有机碳的实时测定; 如果需要，实时测量非甲烷/非乙烷总有机碳; 无人值守，无长时间的校准和无服务操作以及无消耗品的操作。